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1
Marquet, Clément. "Binaire béton : Quand les infrastructures numériques aménagent la ville". Electronic Thesis or Diss., Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLT036.
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Comment la ville est-elle aménagée par et avec les technologies numériques ? Pour répondre à cette question, la thèse analyse dans un même mouvement les conséquences urbaines des infrastructures informationnelles et physiques du numérique. Elle mobilise pour cela les cadres méthodologiques et analytiques des Infrastructures Studies, de la sociologie des techniques et de l’innovation et de la sociologie des problèmes publics. D’un point de vue empirique, elle propose de faire un pas de côté vis-à-vis des grandes expérimentations médiatisées de la « ville intelligente » pour étudier des transformations plus diffuses, quotidiennes, générées par les technologies numériques. Elle se compose ainsi de deux études de cas : d’une part, elle suit un programme de développement de services connectés destinés à améliorer l’accessibilité d’un réseau de transport francilien pour les personnes à mobilité réduite, d’autre part, elle analyse l’implantation discrète de nombreux data centers à Plaine Commune, au nord de la métropole parisienne, et les troubles qui s’en sont suivis localement. Le travail d’enquête articule plusieurs observations participantes, une quarantaine d’entretiens, une revue de presse ainsi que l’analyse de documents internes aux organisations. La thèse montre comment la logique d’instantanéité, de « temps réel », généralement au centre des promesses associées à la ville numérique, réclame une disponibilité accrue des travailleur.se.s, des données et des serveurs. Ainsi, dans l’entreprise de transport, les projets d’amélioration du service voyageur par l’intermédiaire des smartphones confrontent les agents de gare au double impératif de la relation face à face et des alertes du périphérique connecté. Les données cartographiques sur lesquelles reposent les services connectés, souvent prises pour acquises, nécessitent aux organisations d’inventer des collaborations inédites pour assurer leur production et leur maintenance. Les serveurs nécessaires au fonctionnement de la société numérique sont accumulés, protégés et entretenus dans des data centers, imposants bâtiments qui se concentrent géographiquement, bouleversent les environnements où ils s’implantent, décontenancent les élu.e.s et dérangent les riverain.e.s. La logique de temps réel pèse ainsi sur l’organisation sociale et spatiale des villes, et invite à repenser le développement urbain des infrastructures numériques en termes de travail, de maintenance et d’environnement – à la différence de ceux, plus couramment mobilisés, d’imaginaires sociotechniques, de promesses d’optimisation et des modèles urbainsHow is the city developed by and with digital technologies? To answer this question, the thesis analyses in a single movement the urban consequences of the information and physical infrastructures of digital technology. To this end, it mobilizes the methodological and analytical frameworks of Infrastructure Studies, the sociology of techniques and innovation and the sociology of public problems. From an empirical point of view, it proposes to take a step back from the major mediatized experiments of the "smart city" to study more diffuse, everyday transformations generated by digital technologies. It consists of two case studies: on the one hand, it follows a programme to develop connected services to improve the accessibility of a Paris Region transport network for people with reduced mobility, and on the other hand, it analyses the discreet establishment of numerous data centres in Plaine Commune, in the north of the Parisian metropolitan area, and the resulting local unrest. The fieldwork includes several participating observations, about 40 interviews, a press review and the analysis of internal documents of the organizations. The thesis shows how the logic of immediacy, of "real time", generally at the centre of the promises associated with the digital city, requires an increased availability of workers, data and servers. Thus, in the transport company, projects to improve passenger service via smartphones confront station agents with the dual imperative of the face-to-face relationship and the alerts of the connected device. The cartographic data on which connected services are based, often taken for granted, require organizations to invent new collaborations to ensure their production and maintenance. The servers necessary for the functioning of the digital society are accumulated, protected and maintained in data centres, imposing buildings that are geographically concentrated, disrupt the environments in which they are located, disconcert elected officials and disturb residents. The logic of real time thus weighs on the social and spatial organization of cities, and invites us to rethink the urban development of digital infrastructures in terms of work, maintenance and the environment - unlike those, more commonly mobilized, of socio-technical imaginaries, promises of optimization and urban models
2
Bouallaga, Anouar. "Gestion énergétique d’une infrastructure de charge intelligente de véhicules électriques dans un réseau de distribution intégrant des énergies renouvelables". Thesis, Lille 1, 2015. http://www.theses.fr/2015LIL10043/document.
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La crise énergétique et environnementale ont promu le gouvernement à prendre des mesures vigoureuses pour stimuler la transition énergétique et accélérer la croissance verte. Dans cette politique, les véhicules électriques (VE) constituent à terme une réelle réponse aux problématiques actuelles. Leur insertion dans le système électrique a poussé l’ensemble des acteurs et notamment les gestionnaires de réseaux de distribution à privilégier une modernisation des réseaux électriques. Assimilée à la thématique des Smart Grids, la thèse vise à apporter des éléments de réflexion au concept de la gestion de la demande appliquée aux VE. La première partie de ce travail expose une méthodologie d’évaluation de l’impact technico-économique des VE sur les réseaux de distribution HTA/BTA. Ensuite, pour soulever cette problématique, une prospection des services du pilotage de charge orientés réseaux et marché est menée en deuxième partie. Une démarche d’analyse des pistes de valorisation a permis de dégager les services à forte contribution économique. A ce titre, une méthodologie de conception de stratégies de supervision optimisées est proposée. Son application a permis de tirer des conclusions sur la valorisation financière et environnementale des effacements de charges de VE. Les résultats de simulation sont employés pour une étude de rentabilité technico-économique. Ensuite, le comportement des réseaux de distribution face aux algorithmes de supervision est étudié par une approche de co-simulation. Enfin, les principes Smart Grids sont analysés et validés via des expérimentations réalisées sur un démonstrateur hybride interfaçant un simulateur temps réel avec du matériel physiqueEnergy and environmental crisis have prompted the government to take strong measures to stimulate energy transition and accelerate green growth. In this context, electric vehicles (EVs) are considered as a real solution to deal with the current problems. Their integration into the electrical system promotes distribution system operators to develop smart solutions in this field. Concerning the Smart Grids concept, the present work aims to provide answers to a wide range of questions for demand side management program using plug-in EVs charging strategies. The first section of this PhD project, presents a methodology to assess technical and economic impacts of EVs charging on Medium and Low voltage distribution networks. Afterwards, analyses about the competitive EVs load management ancillary services are conducted in the third chapter. By comparing potential and opportunities of each ones, three ancillary services for electricity market contribution were selected. In this context, a methodology for designing energy management strategies is proposed. The latter is applied to the selected ancillary services to assess the financial contribution of the developed strategies. Environmental aspects and Wind-to-Vehicle concept are also evaluated. Furthermore, thanks to a co-simulation interface, the interactions between supervision strategies and real distribution networks are analyzed. The last section presents a Hardware-in-the-loop demonstrator using a real time simulator, smart meters and EVs charging stations. Through experiments, communication constraints and Smart Grids principles are evaluated and validated
3
Shil, Manash. "Designing and simulating a Car2X communication system using the example of an intelligent traffic sign". Master's thesis, Universitätsbibliothek Chemnitz, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-161679.
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The thesis with the title “Designing and simulating a Car2X communication system using the example of an intelligent traffic sign” has been done in Chemnitz University of Technology in the faculty of Computer Science. The purpose of this thesis is to define a layered architecture for Infrastructure to Vehicle (I2V) communication and the implementation of a sample intelligent traffic sign (variable speed limit) application for a Car2X communication system. The layered architecture of this thesis is defined based on three related projects. The application is implemented using the defined layered architecture. Considering the availability of hardware, the implementation is done using the network simulator OMNET++. To check the feasibility of the application three scenarios are created and integrated with the application. The evaluation is done based on the result log files of the simulation which show that the achieved results conform with the expected results, except some minor limitations.
4
Zurawski, Maciej. "An infrastructure mechanism for dynamic ontology-based knowledge infrastructures". Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/3291.
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Both semantic web applications and individuals are in need of knowledge infrastructures that can be used in dynamic and distributed environments where autonomous entities create knowledge and build their own view of a domain. The prevailing view today is that the process of ontology evolution is difficult to monitor and control, so few efforts have been made to support such a controlled process formally involving several ontologies. The new paradigm we propose is to use an infrastructure mechanism that processes ontology change proposals from autonomous entities while maintaining user-defined consistency between the ontologies of these entities. This makes so called semantic autonomy possible. A core invention of our approach is to formalise consistency constraints as so called spheres of consistency that define 1) knowledge regions within which consistency is maintained and 2) a variable degree of proof-bounded consistency within these regions. Our infrastructure formalism defines a protocol and its computational semantics, as well as a model theory and proof theory for the reasoning layer of the mechanism. The conclusion of this thesis is that this new paradigm is possible and beneficial, assuming that the knowledge representation is kept simple, the ontology evolution operations are kept simple and one proposal is processed at a time.
5
Haque, Mesbah 1972. "Intelligent parking management infrastructure design". Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/8032.
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Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2003.Includes bibliographical references (leaf 71).
This thesis discusses the different components required to build and design a prototype for the Intelligent Parking Management (IPM) infrastructure. Different aspects of the hardware and software components used to build the prototype is also discussed in the thesis along with discussion of business and marketing strategies for the viability of the solution for commercial use. A prototype solution was built using hardware and software components. The prototype was tested for real-time parking meter availability information for both general web customers and smart device users such as PDA with wireless access and Smart Phone mobile devices using 3G technologies. The tests were conducted in a controlled environment with simulation data for real parking meters. The IPM prototype solution infrastructure built was able to provide real-time parking information. The information was accessible via the Internet through standard browsers and 3G enable Smart Phones. The integration between the hardware and software components and the IPM infrastructure design prototype was enabled through various technologies such as Microsoft .NET platform, Microsoft SQL Server 2000, Microsoft Mobile Internet toolkit, DTS, ASP.NET and ADO.NET. The thesis discusses these technologies and their interconnectivity within the IPM infrastructure.
by Mesbah Haque.
M.Eng.
6
Gray, Matthew Konefal. "Infrastructure for an intelligent kitchen". Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/61540.
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Thesis (S.M.)--Massachusetts Institute of Technology, Program in Media Arts & Sciences, 1999.Includes bibliographical references (leaves 66-67).
In a world of growing numbers of "things that think", a software infrastructure for managing complex systems of these things is a necessity. This paper presents such a software system, Hive. Hive is a decentralized distributed mobile agents platform, addressing the requirements of a infrastructure for "things that think". Hive addresses the need for ways to manage highly heterogeneous sets of devices, methods for describing and discovering resources, and an approach toward constructing applications. To effectively evaluate this architecture, the particular testbed of a networked kitchen is examined. The kitchen provides a dynamic and compelling application domain to explore the Hive system. The kitchen described in this paper is capable of assisting a user in the preparation of recipes, through use of a variety of sensing and actuation technologies. In addition to the kitchen, a number of other Hive-based systems are discussed, including a networked jukebox and a localization infrastructure for wearables. Hive is evaluated in the context of the networked kitchen and these other applications. Hive is compared to other distributed software systems, in particular Jini. Finally, areas for future work are suggested, in both the Hive infrastructure and the networked kitchen application.
by Matthew Konefal Gray.
S.M.
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Eberhart, Andreas. "Ontology-based infrastructure for intelligent applications". [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=972319662.
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Liu, Zihuai. "Artificial intelligence infrastructure into material attributes insights". Thesis, Massachusetts Institute of Technology, 2020. https://hdl.handle.net/1721.1/126909.
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Thesis: M.B.A., Massachusetts Institute of Technology, Sloan School of Management, in conjunction with the Leaders for Global Operations Program at MIT, May, 2020Thesis: S.M., Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, in conjunction with the Leaders for Global Operations Program at MIT, May, 2020
Cataloged from the official PDF of thesis.
Includes bibliographical references (pages 57-60).
The development of a biopharmaceutical manufacturing process involves an assessment of all possible sources of variation throughout each of the unit operations in the drive toward six sigma manufacturing. The primary goal of this project is to develop a novel way to assess the variation in raw materials attributes throughout the life-cycle of the material and gain insights about the correlation between material variation to process performance and product quality. This thesis focuses on understanding the impact raw materials have on unit operations within biopharmaceutical manufacturing processes through machine learning techniques. To evaluate the impact of raw material attributes on process performance and exclude the variations explained by process operating parameters, a modeling framework is developed and tested. The framework contains three steps: (1) fitting models with only process operating data, (2) fitting models with process operating data and batch number information, (3) fitting models with process operating and raw material attributes data. By comparing the performance measurements from 3 different models, insights of correlations between raw materials and process outcomes could be obtained.
by Zihuai Liu.
M.B.A.
S.M.
M.B.A. Massachusetts Institute of Technology, Sloan School of Management
S.M. Massachusetts Institute of Technology, Department of Civil and Environmental Engineering
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Fleet, Charles O'Bryan 1977. "Candidate system architecture for intelligent itegrated infrastructure". Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/80931.
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Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2000.Includes bibliographical references (leaves 41-42).
by Charles O'Bryan Fleet.
M.Eng.
10
Dadashi, Nastaran. "Human factors of future rail intelligent infrastructure". Thesis, University of Nottingham, 2012. http://eprints.nottingham.ac.uk/13157/.
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The introduction of highly reliable sensors and remote condition monitoring equipment will change the form and functionality of maintenance and engineering systems within many infrastructure sectors. Process, transport and infrastructure companies are increasingly looking to intelligent infrastructure to increase reliability and decrease costs in the future, but such systems will present many new (and some old) human factor challenges. As the first substantial piece of human factors work examining future railway intelligent infrastructure, this thesis has an overall goal to establish a human factors knowledge base regarding intelligent infrastructure systems, as used in tomorrow’s railway but also in many other sectors and industries. An in-depth interview study with senior railway specialists involved with intelligent infrastructure allowed the development and verification of a framework which explains the functions, activities and data processing stages involved. The framework includes a consideration of future roles and activities involved with intelligent infrastructure, their sequence and the most relevant human factor issues associated with them, especially the provision of the right information in the right quantity and form to the right people. In a substantial fieldwork study, a combination of qualitative and quantitative methods was employed to facilitate an understanding of alarm handling and fault finding in railway electrical control and maintenance control domains. These functions had been previously determined to be of immediate relevance to work systems in the future intelligent infrastructure. Participants in these studies were real railway operators as it was important to capture users’ cognition in their work settings. Methods used included direct observation, debriefs and retrospective protocols and knowledge elicitation. Analyses of alarm handling and fault finding within real-life work settings facilitated a comprehensive understanding of the use of artefacts, alarm and fault initiated activities, along with sources of difficulty and coping strategies in these complex work settings. The main source of difficulty was found to be information deficiency (excessive or insufficient information). Each role requires different levels and amounts of information, a key to good design of future intelligent infrastructure. The findings from the field studies led to hypotheses about the impact of presenting various levels of information on the performance of operators for different stages of alarm handling. A laboratory study subsequently confirmed these hypotheses. The research findings have led to the development of guidance for developers and the rail industry to create a more effective railway intelligent infrastructure system and have also enhanced human factors understanding of alarm handling activities in electrical control.
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Jung, Ju-Hwan. "Intelligent systems for strategic power infrastructure defense /". Thesis, Connect to this title online; UW restricted, 2002. http://hdl.handle.net/1773/5971.
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Amor, Yasmine. "Ιntelligent apprοach fοr trafic cοngestiοn predictiοn". Electronic Thesis or Diss., Normandie, 2024. http://www.theses.fr/2024NORMR129.
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La congestion routière constitue un défi majeur pour les zones urbaines, car le volume de véhicules continue de croître plus rapidement que la capacité globale du réseau routier. Cette croissance a des répercussions sur l'activité économique, la durabilité environnementale et la qualité de vie. Bien que des stratégies visant à atténuer la congestion routière ont connu des améliorations au cours des dernières décennies, de nombreux pays ont encore du mal à la gérer efficacement.Divers modèles ont été développés pour aborder ce problème. Cependant, les approches existantes peinent souvent à fournir des prédictions en temps réel et localisées qui peuvent s'adapter à des conditions de trafic complexes et dynamiques. La plupart de ces approches s'appuient sur des horizons de prédiction fixes et manquent de l'infrastructure intelligente nécessaire à la flexibilité. Cette thèse comble ces lacunes en proposant une approche intelligente, décentralisée et basée sur l'infrastructure pour l'estimation et la prédiction de la congestion routière.Nous commençons par étudier l'Estimation du Trafic. Nous examinons les mesures de congestion possibles et les sources de données requises pour différents contextes pouvant être étudiés. Nous établissons une relation tridimensionnelle entre ces axes. Un système de recommandation basé sur des règles est développé pour aider les chercheurs et les opérateurs du trafic à choisir les mesures de congestion les plus appropriées en fonction du contexte étudié.Nous passons ensuite à la Prédiction du Trafic, où nous introduisons notre approche DECOTRIVMS. Cette dernière utilise des panneaux intelligents à messages variables pour collecter des données detrafic en temps réel et fournir des prédictions à court terme avec des horizons de prédiction variables.Nous avons utilisé des Réseaux de Graphes avec Attention en raison de leur capacité à capturer des relations complexes et à gérer des données structurées en graphes. Ils sont bien adaptés pour modéliser les interactions entre différents segments routiers étudiés.Nous avons aussi employé des méthodes d'apprentissage en ligne, spécifiquement la Descente de Gradient Stochastique et la Descente de Gradient Adaptative. Bien que ces méthodes ont été utilisées avec succès dans divers autres domaines, leur application à la prédiction de la congestion routière reste sous-explorée. Dans notre thèse, nous visons à combler cette lacune en explorant leur efficacité dans le contexte de la prédiction de la congestion routière en temps réel.Enfin, nous validons l'efficacité de notre approche à travers deux études de cas réalisées à Mascate, Oman, et à Rouen, France. Une analyse comparative est effectuée, évaluant divers modèles de prédiction, y compris les Réseaux de Graphes avec Attention, les Réseaux de Graphes Convolutionnels et des méthodes d'apprentissage en ligne. Les résultats obtenus soulignent le potentiel de DECOTRIVMS, démontrant son efficacité pour une prédiction précise et efficace de la congestion routière dans divers contextes urbainsTraffic congestion presents a critical challenge to urban areas, as the volume of vehicles continues to grow faster than the system’s overall capacity. This growth impacts economic activity, environmental sustainability, and overall quality of life. Although strategies for mitigating traffic congestion have seen improvements over the past few decades, many cities still struggle to manage it effectively. While various models have been developed to tackle this issue, existing approaches often fall short in providing real-time, localized predictions that can adapt to complex and dynamic traffic conditions. Most rely on fixed prediction horizons and lack the intelligent infrastructure needed for flexibility. This thesis addresses these gaps by proposing an intelligent, decentralized, infrastructure-based approach for traffic congestion estimation and prediction.We start by studying Traffic Estimation. We examine the possible congestion measures and data sources required for different contexts that may be studied. We establish a three-dimensional relationship between these axes. A rule-based system is developed to assist researchers and traffic operators in recommending the most appropriate congestion measures based on the specific context under study. We then proceed to Traffic Prediction, introducing our DECentralized COngestion esTimation and pRediction model using Intelligent Variable Message Signs (DECOTRIVMS). This infrastructure-based model employs intelligent Variable Message Signs (VMSs) to collect real-time traffic data and provide short-term congestion predictions with variable prediction horizons.We use Graph Attention Networks (GATs) due to their ability to capture complex relationships and handle graph-structured data. They are well-suited for modeling interactions between different road segments. In addition to GATs, we employ online learning methods, specifically, Stochastic Gradient Descent (SGD) and ADAptive GRAdient Descent (ADAGRAD). While these methods have been successfully used in various other domains, their application in traffic congestion prediction remains under-explored. In our thesis, we aim to bridge that gap by exploring their effectiveness within the context of real-time traffic congestion forecasting.Finally, we validate our model’s effectiveness through two case studies conducted in Muscat, Oman, and Rouen, France. A comprehensive comparative analysis is performed, evaluating various prediction techniques, including GATs, Graph Convolutional Networks (GCNs), SGD and ADAGRAD. The achieved results underscore the potential of DECOTRIVMS, demonstrating its potential for accurate and effective traffic congestion prediction across diverse urban contexts
13
Zichichi, Mirko. "A Distributed Ledger based infrastructure for Intelligent Transportation Systems". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/18440/.
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Intelligent Transportation Systems (ITS) are proposed as an efficient way to improve performances in transportation systems applying information, communication, and sensor technologies to vehicles and transportation infrastructures. The great amount of vehicles produced data, indeed, can potentially lead to a revolution in ITS development, making them more powerful multifunctional systems. To this purpose, the use of Vehicular Ad-hoc Networks (VANETs) can provide comfort and security to drivers through reliable communications. Meanwhile, distributed ledgers have emerged in recent years radically evolving the way that we used to consider finance, trust in communication and even renewing the concept of data sharing and allowing to establish autonomous, secured, trusted and decentralized systems. In this work an ITS infrastructure based on the combination of different emerging Distributed Ledger Technologies (DLTs) and VANETs is proposed, resulting in a transparent, self-managed and self-regulated system, that is not fully managed by a central authority. The intended design is focused on the user ability to use any type of DLT-based application and to transact using Smart Contracts, but also on the access control and verification over user’s vehicle produced data. Users "smart" transactions are achieved thanks to the Ethereum blockchain, widely used for distributed trusted computation, whilst data sharing and data access is possible thanks to the use of IOTA, a DLT fully designed to operate in the Internet of Things landscape, and IPFS, a protocol and a network that allows to work in a distributed file system. The aim of this thesis is to create a ready-to-work infrastructure based on the hypothesis that every user in the ITS must be able to participate. To evaluate the proposal, an infrastructure implementation is used in different real world use cases, common in Smart Cities and related to the ITS, and performance measurements are carried out for DLTs used.
14
Hooper, Emmanuel. "Intelligent detection and response strategies for network infrastructure attacks". Thesis, Royal Holloway, University of London, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.441276.
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Benatia, Mohamed Amin. "Optimisation multi-objectives d’une infrastructure réseau dédiée aux bâtiments intelligents". Thesis, Rouen, INSA, 2016. http://www.theses.fr/2016ISAM0024/document.
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Au cours de cette thèse, nous avons étudié le problème de déploiement des Réseaux de Capteurs Sans-Fil (RCSF) pour des applications indoor tel que le bâtiment intelligent. Le but de notre travail était de développer un outil de déploiement capable d'assister les concepteurs de RCSF lors de la phase de déploiement de ces derniers. Nous avons commencé cette thèse par la modélisation de tous les paramètres qui interviennent lors du déploiement des RCSF, à savoir : coût, connectivité, couverture et durée de vie. Par la suite, nous avons implémenté cinq algorithmes d'optimisation, dont trois multi-objectifs afin de résoudre le problème de déploiement. Deux cas d'études réelles (grande et petite instance) ont été identifiés afin de tester ces algorithmes. Les résultats obtenus ont montré que ces algorithmes sont efficaces quand il s'agit d'un petit bâtiment (petit espace). Par contre, dès que la surface du bâtiment augmente les performances des algorithmes étudiés se dégradent. Pour répondre à cela, nous avons développé et implémenté un algorithme d'optimisation multi-objectifs hybride. Cet algorithme se base sur des notions de clustering et d'analyse de données afin de limiter le nombre d'évaluations directes qu'entreprennent ces méthodes pendant chaque itération. Afin d'assurer cette limitation d'évaluation les fonctions de fitness sont approximées grâce aux réseaux de neurones et l'algorithme de classification K-means. Les résultats obtenus ont montré une très bonne performance sur les deux instances de tailles différentes. Ces résultats ont été comparés à ceux obtenus avec les méthodes classiques utilisées et sont compétitives et prometteusesIn this thesis, we studied the Wireless Sensor Network deployment for indoor environments with a focus on smart building application. The goal of our work was to develop a WSN deployment tool which is able to assist network designers in the deployment phase. We begin this thesis with network modeling of all the deployment parameters and requirement, such as : cost, coverage, connectivity and network lifetime. Thereafter, we implement five optimisation methods, including three multi-objective optimization agorithms, to resolve WSN deployment problem. Then, two realistics study cases were identified to test the performances of the aforementioned algorithms. The obtained results shows that these algorithms are very efficient for deploying a small scale network in small buildings. However, when the building surface becomes more important the algorithms tends to converge to local optimum while consuming high processing time. To resolve this problem, we develop and implement a new Hybrid multi-objectif optimization algorithm wich limits the number of direct evaluation. This algorithm is based on data-mining methods (Artificial Neural Networks and K-means) and tries to approximate the fitness value of each individual in each generation. At every generation of the algorithm, the population is divided to K clusters and we evaluate only the closest individual to cluster centroide. The fitness value of the rest of population is approximated using a trained ANN. A comparative study was made and the obtained results show that our method outperformes others in the two sudy cases (small and big buildings)
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Sabesan, Sithamparanathan. "A passive RFID real time sensing system for intelligent infrastructure". Thesis, University of Cambridge, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.609323.
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Fraser, Robert James C. "Embedded command and control infrastructures for intelligent autonomous systems". Thesis, University of Southampton, 1994. https://eprints.soton.ac.uk/250158/.
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The issue of Command and Control (C2) is generally associated with the management infrastructure of large scale systems for warfare, public utilities and public transportation, and is concerned with ensuring that the distributed human elements of command and control can be fully integrated into a coherent, total system. Intelligent Autonomous Systems (IASs) are a class of complex systems that perform tasks autonomously in uncertain, dynamic environments, the management of which can be viewed from the perspective of embedded command and control systems. This thesis establishes a vision for the modular construction of intelligent autonomous embedded C2 systems, which defines a complex integration problem characterised by distributed intelligence, world knowledge and control, concurrent processing on heterogeneous platforms, and real-time performance requirements. It concludes that by adopting an appropriate systems infrastructure model, based on Object Technology, it is possible to view the construction of embedded C2 systems as the integration of a temporally assembled collection of reusable components. To support this metaphor it is necessary to construct a common reference model, or standards framework, for the representation and specification of modular C2 systems. This framework must support the coherent long term development and evolution in system capability, ensuring that systems are extensible, robust and perform correctly. In this research, which draws together the themes of other published research in object oriented systems and robotics, classical AI models for intelligent systems architectures are used to specify the overall system structure, with open systems technologies supporting the interoperation of elements within the architecture. All elements of this system are modelled in terms of objects, with well defined, implementation independent interfaces. This approach enables the system to be specified in terms of an object model, and the development process to be framed in terms of object technology, defining a new approach to IAS development. The implementation of an On-board Command and Control System for an Autonomous Underwater Vehicle is used to validate these concepts. The further application of emergent industrial standards in distributed object oriented systems means that this kind of component-based integration is scaleable, providing a near-term solution to generic command and control problems, including Computer Integrated Manufacturing and large scale autonomous systems, where individual autonomous systems, such as robots, form elements of a complete, total intelligent system, for application to areas such as fully automated factories and cooperating intelligent autonomous vehicles for construction sites.
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Plainchault, Patrick. "Sécurisation de la conduite par communication véhicule infrastructure à base de transpondeurs". Toulouse, INPT, 2005. http://ethesis.inp-toulouse.fr/archive/00000137/.
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Comment utiliser la communication entre les véhicules et l'infrastructure à base de transpondeurs pour sécuriser le déplacement automobile? Dans un premier temps, nous présentons un état de l'art des systèmes de localisation (LIDAR, RADAR, caméras vidéo, marqueur magnétique, GPS, gyroscope, et cartes embarquées. . . ), de communication (DAB, UMTS, DSRC, Bluetooth, WIFI, Infrarouge. . . ) et sur la technologie des transpondeurs. Puis nous rappelons les principes liés à l'étude d'un transpondeur sachant que ce système de communication s'appuie sur deux éléments principaux : 1) le lecteur et son antenne embarqués dans le véhicule 2 ) le transpondeur logé dans la bande de roulement composé d'antennes, d'un microcontrôleur et d'une mémoire. Enfin, nous présentons les résultats obtenus et quelques applications possibles : contrôle latéral et longitudinal, le calcul d'interdistance et la détection de circulation à contre sensFor many years, car manufacturers have been trying to ensure the safety of automobile movements. This thesis relates how a transponder based communication between vehicles and infrastructure can be used. In the first part overview of localisation systems (LIDAR, RADAR, video cameras, magnetic strip following, GPS, gyro platforms and cartography systems embedded in the vehicle), local communication (DAB, UMTS, DSRC, Bluetooth, WIFI, InfraRed,. . . ) and transponder technology are presented. Then it recalls the principles of transponder. This communication system consists of two main elements: 1) a base station with an antenna embedded in a vehicle, 2) a transponder, located in the tread including an antenna, a microcontroller for data processing and communication and a memory. Finally, also some results and applications: lateral and longitudinal positioning, inter distance calculation and detection of wrong way traffic are presented
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Peters, Stephen Leslie. "Hyperglue : an infrastructure for human-centered computing in distributed, pervasive, intelligent environments". Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/35594.
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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2006.Includes bibliographical references (p. 161-165).
As intelligent environments (IEs) move from simple kiosks and meeting rooms into the everyday offices, kitchens, and living spaces we use, the need for these spaces to communicate not only with users, but also with each other, will become increasingly important. Users will want to be able to shift their work environment between localities easily, and will also need to communicate with others as they move about. These IEs will thus require two pieces of infrastructure: a knowledge representation (KR) which can keep track of people and their relationships to the world; and a communication mechanism so that the IE can mediate interactions. This thesis seeks to define, explore and evaluate one way of creating this infrastructure, by creating societies of agents that can act on behalf of real-world entities such as users, physical spaces, or informal groups of people. Just as users interact with each other and with objects in their physical location, the agent societies interact with each other along communication channels organized along these same relationships. By organizing the infrastructure through analogies to the real world, we hope to achieve a simpler conceptual model for the users, as well as a communication hierarchy which can be realized efficiently.
by Stephen L. Peters.
Ph.D.
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Li, Hang. "Utilisation de matériaux bois intelligents pour la gestion durable des infrastructures". Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30288/document.
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Depuis quinze ans, on recommence à construire en bois, et notamment en bois lamellé-collé (LC), pour répondre aux nouveaux challenges imposés par les problématiques de développement durable. Néanmoins, des problèmes de dégradations liés à l'humidité ou aux cycles d'humidification/séchage limitent le développement des ouvrages en bois. De ce fait, le suivi de l'humidité des ouvrages d'art en bois devient un enjeu crucial. Aujourd'hui, certaines solutions existent mais ne permettent pas un suivi local au niveau des lamelles du bois LC. Une telle solution permettrait d'améliorer la prédiction de la durée de vie des ouvrages. Suite à ce constat, nous avons proposé de transformer le bois LC en " structure intelligente " par intégration d'un système du suivi de l'humidité au niveau des lamelles, et ce, en tenant compte des principales contraintes de fabrication de ce matériau (faible épaisseur du joint collé, pression de collage importante, etc.). Pour ce faire, nous avons effectué une recherche bibliographique afin de sélectionner les méthodes de suivi pouvant répondre à ces contraintes. A l'issue de cette recherche, deux technologies se sont révélées intéressantes : les mesures électriques et les mesures ultrasonores. Plusieurs configurations de mesures ont été proposées et testées pendant ce travail de thèse. Par la suite, nous avons effectué des essais préliminaires pour s'assurer du bon fonctionnement de ces configurations de mesures, et ainsi vérifier le comportement des capteurs lors de la fabrication du bois LC. Puis, nous avons humidifié les échantillons en utilisant deux protocoles d'humidification différents afin de vérifier la faisabilité du suivi de l'humidité avec les capteurs intégrés. Les résultats montrent que l'ensemble des configurations de mesures sont opérationnelles pour suivre la variation de l'humidité dans les échantillons LC. De plus, pour les mesures électriques, nos résultats montrent que l'on peut adopter quasiment les mêmes modèles d'étalonnage pour le suivi de l'humidité par mesures résistives, quel que soit le type de capteurs utilisé. Qui plus est, il est possible de récupérer des informations complémentaires par la réalisation simultanée des mesures résistives et des mesures capacitives en utilisant les électrodes surfaciques. Concernant les mesures ultrasonores, nous avons obtenu les courbes de sensibilité en fréquence pour plusieurs familles de capteurs à film piézoélectrique. L'influence de la pression de collage et de la distance entre les capteurs sur les mesures électriques/ultrasonores a aussi été investiguée dans ces travaux. De futures études consisteront à utiliser ces configurations de mesures pour le suivi in situ dans les ouvrages, ainsi qu'à établir un lien entre la durabilité des structures LC et les cycles d'humidification/séchage afin de prédire la durée de vie résiduelle des ouvrages d'art en boisFor fifteen years, we restart to construct with wood, and particularly with glulam to respond to the new challenges imposed by the issues of sustainable development. However, degradation issues related to moisture content (MC) or wetting/drying cycles limit the development of timber structures. As a result, the MC monitoring in timber structures becomes a critical issue. Today, several solutions exist but they do not allow a local monitoring in the lamellas of glulam. Such a solution would improve the prediction of the service life of timber structures. In the light of this observation, we proposed to transform glulam into "smart material" by embedding a MC monitoring system in the lamellas, and this, considering the major constraints of fabrication of this material (small glue line thickness, important bonding pressure, etc.). To achieve this, we have conducted a bibliographic research, in order to select the monitoring methods which can satisfy these constraints. According to this research, two technologies turn out to be interesting: the electrical measurements and the ultrasonic measurements. Several measurement configurations were proposed and tested in this PhD work. Thereafter, we conducted preliminary tests to make sure of the good functionality of these measurement configurations, and also to verify the behavior of sensors throughout the glulam fabrication process. Afterwards, we moistened the specimens with two different moistening protocols in order to verify the feasibility of MC monitoring with embedded sensors. Results showed that all the measurement configurations are operational for the MC monitoring in glulam specimens. Moreover, for electrical measurements, our results show that we can adopt almost the same calibration models for the MC monitoring by resistive measurements, no matter the type of sensors used. Furthermore, it is possible to obtain complementary information by the realization of the resistive and capacitive measurements at the same time, using surface electrodes. Regarding the ultrasonic measurements, we have obtained the sensibility curves in frequency of several families of piezoelectric film sensors. On the other hand, the influence of bonding pressure and of sensor distance on the electrical/ultrasonic measurements was also investigated in this study. Future studies will consist in using these measurement configurations to perform in situ monitoring in timber structures, and also to establish a link between the durability of glulam structures and the wetting/drying cycles in order to predict the service life of timber structures
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Kuchibhotla, Sree C. "An OSGI based infrastructure for smart homes of the future". [Gainesville, Fla.] : University of Florida, 2002. http://purl.fcla.edu/fcla/etd/UFE0000557.
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Dugénie, Pascal. "Espaces collaboratifs ubiquitaires sur une infrastructure à ressources distribuées". Montpellier 2, 2007. http://www.theses.fr/2007MON20119.
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Les réflexions menées autour de l'idée d'intelligence collective (ou collaborative) postulent, que celle-ci émerge d'un système en interaction dont les dispositifs techniques, sociaux et sémiotiques sont fortement imbriqués (Pierre Levy, 1994). Pour relever ce défi, cette thèse propose de conjuguer deux concepts innovants. D'une part l'idée d'espace collaboratif ubiquitaire pour catalyser les interactions entre groupes d'agents et services. D'autre part, une infrastructure à ressources distribuées pour coordonner, de façon dynamique, les ressources et la sécurité en fonction de critères de qualité de service souhaités par les groupes d'agents. Un espace collaboratif ubiquitaire intègre des processus artificiels pour réaliser du traitement de masse (simulations, fouille de données, etc. ) et des interfaces multimodales incluant la visualisation partagées en mode synchrone ou asynchrone pour les interactions entre humains. En termes d'infrastructure, cette thèse explique pourquoi le Web n'apporte pas une réponse adaptée à la problématique de l' intelligence collective et pourquoi nous nous sommes tourné vers Grid (Grille de Ressources Informatiques Distribuées). Notamment, une propriété singulière de Grid est le service à état qui permet de coordonner des ressources distribuées de façon dynamique et sécurisée. Pour mettre ceci en évidence, au lieu de développer un modèle analytique, nous avons opté pour un modèle systémique. Nous avons développé le modèle d'architecture Agora qui propose d'utiliser Grid pour déployer des espaces collaboratifs ubiquitaires. De cette façon, les groupes d'agents humains et artificiels s'auto-organisent dans un espace immanent où les ressources sont délivrées dynamiquement par l'infrastructure. Validé par une méthode empirique, ce modèle a été l'objet d'une élaboration itérative fondée sur des retours d'expérimentation avec des communautés d'utilisateurs. Au vu de l'avancement de nos investigations, une architecture Grid couplée avec des concepts propres aux systèmes multi-agents présente les caractéristiques nécessaires pour déployer Agora à grande échelle avec une utilisation rationnelle des ressources, tout en offrant des garanties de sécurité et de haute disponibilitéThe reflexions lead around the idea of collective (or collaborative) intelligence suggest, that those emerge within a system in interaction of which technical, social and semiotic factors are strongly imbricated (Pierre Levy, 1994). In order to leverage this challenge, this thesis propose to mix two innovative concepts. Firstly, the collaborative ubiquituous space is used to catalyse the interactions between groups of agents and services. Secondly, an infrastructure with distributed resources is used to dynamically coordinate the resources and the security according to quality of service criteria. A collaborative ubiquituous space integrates artificial processes to achieve massive computation (simulations, data mining, etc. ) and multimodal interfaces including shared visualisation for interactions between humans. In terms of infrastructure, this thesis explains why the Web does not respond suitably to the problem of collective intelligence and why we looked at Grid. In particular, a singular property of Grid is the stateful service that allows to coordinate distributed ressources in a dynamic and secured manner. To show it, instead of developping an analytical model, we have chosen a systemic model. The architecture model Agora proposes to use Grid to deploy collaborative ubiquituous spaces. Validated by a empirical method, this model has been evaluated iteratively based on returns from expérimentations with communities of users. According to the progress of our investigations, a Grid architecture coupled concepts linked to multi-agents systems show caracteristics required for scalability with a rationnal use of resources, while offering garanties of sécurity and high availibility
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Lemke, Laurent. "Modèles partagés et infrastructures ouverte pour l'internet des objets de la ville Intelligente". Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAM022/document.
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Les villes contemporaines font face à de nombreux enjeux : énergétiques,écologiques, démographiques ou encore économiques. Pour y répondre, des moyens technologiques sont mis en place dans les villes via l’utilisation de capteurs et d’actionneurs. Ces villes sont dites intelligentes.Actuellement, les villes intelligentes sont opérés des acteurs qui ne partagent ni leurs données de capteurs ni l’accès à leurs actionneurs.Cette situation est dite verticale : chaque opérateur déploie ses propres capteurs et actionneurs et possède sa propre infrastructure informatique hébergeant ses applications. Cela conduit à une redondance de l’infrastructure et à des applications ad-hoc pour superviser et contrôler un domaine de la ville.Une tendance est d’aller vers une situation dite horizontale via l’utilisation d’une plateforme de médiation ouverte et partagée. Les données de capteurs et les accès aux actionneurs sont mutualisés au sein de ce type de plateforme, permettant leur partage entre les différents acteurs. Les coûts d’infrastructure et de développement s’en trouvent alors réduits.Cette thèse s’inscrit dans ce contexte d’horizontalisation, au sein d’une plate- forme ouverte et partagée, dans laquelle nous proposons :1) une couche d’abstraction pour le contrôle et la supervision de la ville, 2) un mécanisme de contrôle de concurrence gérant les cas de conflits, 3) un mécanisme de coordination favorisant la réutilisation des actionneurs, 4) une implémentation de notre travail par une preuve de concept.L’abstraction que nous proposons se base sur des modèles issus des systèmes réactifs. Ils ont pour objectif d’être générique et représente l’invariant de la ville intelligente : les éléments physiques. Ils permettent aux applications de contrôler et superviser la ville.Pour faciliter le développement d’applications nous uniformisons l’interface de nos modèles. Ces applications pouvant avoir des contraintes temps réel, particulièrement celles qui ont des objectifs de contrôle, nous proposons de tirer parti de l’architecture distribuée de ce type de plateforme.Compte-tenu du partage des actionneurs, nous avons identifié que des conflits peuvent survenir entre les applications. Nous proposons un mécanisme de contrôle de concurrence pour traiter ces cas de conflits.Nous avons également identifié qu’un mécanisme de coordination doit être offert aux applications souhaitant effectuer atomiquement des opérations de contrôle. Un tel mécanisme favorise la réutilisation des actionneurs présents dans la ville.Enfin, nous avons implémenté nos propositions autour d’une preuve de concept, comprenant plusieurs cas d’usages, permettant de démontrer notre travailNowadays cities face several challenges and are concerned by ecological, energetic, economical, and demographical aspects. Smart cities, equipped with sensors, actuators, and digital infrastructures, are meant to tackle these issues.Current smart cities are operated by several actors without sharing sensor data or accesses to the actuators. This is a vertical organization, in which each actor deploys its own sensors and actuators, and manages its own digital infrastructure. Each actor may be interested in a different aspect of city management, for instance traffic management, air control, etc. The current trend is a transition towards a more horizontal organization, based on an open and shared mediation platform. In such a platform, sensor data and accesses to actuators can be shared among several actors. The costs related to nfrastructure deployment and management are therefore reduced for each individual actor. This PhD is a contribution to this volution towards horizontal organizations, with open and shared platforms. We propose: (1) an abstraction layer for the ontrol and supervision of the city; (2) a concurrency management mechanism; (3) a coordination mechanism that helps haring actuators; (4) a proof-of-concept implementation of these contributions. The abstraction layer we propose helps users control and supervise a city. It is based upon formal models inspired by the ones used in the programming of reactive systems. They represent the physical elements present in each smart city, with genericity principles. In order to ease application development, the interface of those models is made uniform. Since applications, especially control ones, may ave real-time constraints, we also list the constraints this poses on distributed infrastructures. As soon as actuators are shared, conflicts may occur between users. Our proposals include a concurrency management mechanism, based on eservation principles. We also provide a coordination mechanism for the users to be able to perform several actions in an tomic way.All these principles have been implemented as a proof of concept. We review several use cases, to demonstrate he potential benefits of our proposals
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Qureshi, Nouman Ahmed, Babar Ali Khan y Jomah Abu Saif. "Business Intelligence Systems in the Holistic Infrastructure Development Supporting Decision-Making in Organisations". Thesis, Högskolan i Halmstad, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-33502.
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The aim of this review is analysing Business Intelligence Systems with regards to opportunities for enhancing basic leadership and improving decision making power in a contemporary organization. We took specifics of basic decision making procedure together with heterogeneity and scattering of data sources into thought – introduce Business Intelligence Systems as some all-encompassing framework of decision making. It has been demonstrated that the Business Intelligence may contribute towards enhancing nature of decision making in any organization, better consumer service and consumer loyalty. The review is cantered around three essential segments of the BI frameworks, i.e. key information technologies, capability of key information technologies and BI applications that help various decision making in organization. This review is devoted not only to find out how BI is for decision making but how frequently these are applied in business practice
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Yamben, Jean-Yves. "Intelligent decision support system for transport infrastructure investment with emphasis on joint logistic". Thesis, Blekinge Tekniska Högskola, Avdelningen för för interaktion och systemdesign, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-1306.
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The aim of this thesis is to provide to the governmental decision-maker/user, an instrument that can assist him/her in improving the infrastructure investment decision in the economical, environmental and sustainable aspects. This means that, the Return on Investment (ROI) of the concerned transport infrastructure, satisfying environmental and sustainable constraints must be positive, and corresponding to an optimal investment cost. The decision support system can be applied in two dimensions. One dimension is where the real negotiation process is occurring between private and public stakeholders, called “real time negotiation process”. The second dimension is where the negotiation process is impelled by the user (public part) without private stakeholders interaction (but with interaction through simulation), called “virtual negotiation process”. The simulation and local optimization techniques, in phase with agent technology, used in the “virtual negotiation process” enable us to achieve a certain amount of alternative decisions to the primary/suggested decision to be evaluated. The CommonKADS methodology with mathematical modeling, and agent technology have been the support respectively for extracting and implementing the knowledge in the domain, monitoring, automating and updating the decision process. The principle of “Joint logistic” [1] in my effort concerns by the means of sharing financial and information resources; This leads to the empowerment of the supply chain feedbacks (roles), involved in the earlier stages of public transport decision making-process. It appears that within the decision-making process, the government is often dealing with the conflicting objectives, while interacting with the business stakeholders. For instance, the estimated investment cost of a specific transport infrastructure can exceed the income generated by this infrastructure, thus the ROI of the concerned transport infrastructure (TI) will be negative. From this perspective the government faces three choices: a) increase the rate of the taxes applied on that transport infrastructure or any other taxes, in order to make ROI positive, this can be matter of discussion/disagreement for the business community b) reduce the investment cost which means suggest a different TI with a lower quality standard compared to the previous; this can also be a matter of disagreement between the two concerned stakeholders. c) delay of the investment in the specific transport infrastructure. In fact in the most situations the government uses the first approach, which effects might be consequently unpredictable and disastrous in the economical and environmental sense for the government. From this point of view my attempt is to propose an intelligent decision support system for governments or project groups (e.g. East West project group), involving conceptually as components web portal, database, simulator and knowledge base, that bases on an approach, that enables this negotiation/information exchange at the earlier steps of decision-making situation. This is concretized by gathering in real time accurate and relevant information from the private sector; furthermore the knowledgebase of the designed system is conceived via the experience and historical knowledge of the concerned experts in the domain.Please contact me via email : yjeanyv@hotmail.com or phone: +224 64 97 43 79
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Chan, Andrew Kwok Wai. "Development of an intelligent system for operator support during wireless infrastructure system testing". Thesis, Cranfield University, 2009. http://dspace.lib.cranfield.ac.uk/handle/1826/4037.
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Intense competition and the requirement to continually drive down costs within a mature mobile telephone infrastructure market calls for new and innovative solutions to process improvement. One particular challenge is to improve the quality and reliability of the diagnostic process for systems testing of GSM and UMTS products. In this thesis, we concentrate on a particularly important equipment type – the Base Transceiver Station (BTS). The BTS manages the radio channels and transfers signalling information to and from mobile stations (i.e. mobile phones). Most of the diagnostic processes are manually operated and rely heavily on individual operators and technicians' knowledge for their performance. Hence, there is a high cost associated with trouble-shooting in terms of time and manpower. To address this issue, we employ Bayesian networks (BNs) to model the domain knowledge that comprises the operations of the System Under Test (SUT), Automated Test Equipment (ATE) and the diagnostic skill of experienced engineers, in an attempt to enhance the efficiency and reliability of the diagnostic process. The proposed automated diagnostic tool (known as Wisdom) consists of several modules. An intelligent user interface will provide possible solutions to test operators / technicians; to capture their responses, and to activate the automated test programme. Server and client software architecture will be used to integrate Wisdom with the ATE seamlessly and to maintain Wisdom as an independent module. A local area network will provide the infrastructure for managing and deploying the multimedia and text information in real time. We describe how a diagnostic model can be developed and implemented using a Bayesian network approach. We also describe how the resulting process of diagnosis following failure, advice generation and subsequent actions by the operator are handled interactively by the prototype system.
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Chan, A. K. W. "Development of an intelligent system for operator support during wireless infrastructure system testing". Thesis, Department of Engineering Systems and Management, 2009. http://hdl.handle.net/1826/4037.
Texto completoResumen
Intense competition and the requirement to continually drive down costs
within a mature mobile telephone infrastructure market calls for new and
innovative solutions to process improvement. One particular challenge is
to improve the quality and reliability of the diagnostic process for systems
testing of GSM and UMTS products. In this thesis, we concentrate on a
particularly important equipment type – the Base Transceiver Station
(BTS). The BTS manages the radio channels and transfers signalling
information to and from mobile stations (i.e. mobile phones). Most of the
diagnostic processes are manually operated and rely heavily on individual
operators and technicians' knowledge for their performance. Hence, there
is a high cost associated with trouble-shooting in terms of time and
manpower. To address this issue, we employ Bayesian networks (BNs) to
model the domain knowledge that comprises the operations of the System
Under Test (SUT), Automated Test Equipment (ATE) and the diagnostic
skill of experienced engineers, in an attempt to enhance the efficiency and
reliability of the diagnostic process. The proposed automated diagnostic
tool (known as Wisdom) consists of several modules. An intelligent user interface will provide possible solutions to test operators
/ technicians; to capture their responses, and to activate the automated
test programme. Server and client software architecture will be used to
integrate Wisdom with the ATE seamlessly and to maintain Wisdom as an
independent module. A local area network will provide the infrastructure
for managing and deploying the multimedia and text information in real
time. We describe how a diagnostic model can be developed and
implemented using a Bayesian network approach. We also describe how
the resulting process of diagnosis following failure, advice generation and
subsequent actions by the operator are handled interactively by the
prototype system.
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Seethamraju, Jaya Lakshmi. "Impact of Business Intelligence (BI) Systems Use on Process Level Performance". Thesis, The University of Sydney, 2014. http://hdl.handle.net/2123/12842.
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This study investigated the relationship between BI systems use, IT infrastructure capability, and firm performance at the process level. Even though a majority of past studies considered BI system usage as a single item variable, this study has taken a broader view of the BI system use and measured it with reference to four aspects – extent of use of various applications/business processes a BI system supports, extent of use of several technology components of a BI system, level of management/governance of BI system use and time since the adoption of a BI system. Based on the survey data collected from 128 business intelligence (BI) users in Australia, this study observed that the firms are using BI software solutions for more than 5 years and mostly using them to support financial and performance reporting processes. In spite of reporting satisfaction with the capabilities of the BI system, a majority of firms continue to use Excel for reporting and analysis functions bypassing the BI system. We found that poor management of access, rigidity of the BI system in its inability to meet dynamic changing business requirements, inadequacy of user training, poor data handling procedures, and absence of data governance are some of the challenges identified in the management of BI system usage. This study confirmed the enabling role of IT infrastructure capability in improving firm performance, and found this to be a significant predictor of process level performance. Firm size, measured by gross revenue and employee strength, had no influence on process level performance, the study found. Effective usage of the applications that support specific business processes and good management of use tend to deliver performance benefits to organizations, rather than just the deployment of technology tools. This study demonstrates the complementarity between BI systems use, IT infrastructure and business processes and highlights the importance of ‘BI use’ and its governance.
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Swahn, Joakim y Christian Udin. "Cooperative Vehicle-Infrastructure System : Identification, Privacy and Security". Thesis, Linköping University, Department of Science and Technology, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-9399.
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This master thesis is to highlight the importance of what needs to be identified in the CVIS system, how this could be done, how different techniques affect privacy and security and how the privacy and security mechanisms can be improved for the whole system. The report starts with a background of ERTICO – ITS Europe, followed by a description of how the CVIS project is organized, how the CVIS system will work, and a presentation of privacy, security and identification, both in general and in CVIS. After this follows the analysis and the report is finally wrapped up with conclusions and recommendations.
Why this is an important topic to highlight and discuss and the reason being for this master thesis, is because there is a clear need within the CVIS consortium to harmonise these topics. As it is today, different persons and different sub-projects have different views and opinions on what needs to be identified for example. This needs to be harmonised in order for everyone to know what is being developed, but also, and much more importantly, to in the end get acceptance for the CVIS system. If people do not feel they can trust the system, if they feel it is not secure or that it violates their privacy, they will not use it, even if it has been proved the technique works.
The key question discussed in the report is what needs to be identified. This is the most important question to solve. There must be very good reasons and consensus why a certain entity is to be identified, otherwise identification of that entity will always be questioned. This also links very tightly with privacy.
The objective of this master thesis is to bring forward this critical question about identification, to highlight different reasons for identifying or not identifying different entities and to get the discussion started.
Finally, the main conclusions and recommendations on what to actually identify is the vehicle and the different parts in the central sub-system. The best technique would be by using single sign on with a very strong encryption, for example random numbers, that will be handle by a new node Identification Management Centre or that it will be a part of the Host Management Centre. To ensure privacy in the system, the single sign on mechanism should be combined with the approach of using pseudonyms when communicating in the CVIS system.
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Šmerda, Miroslav. "Řízení projektů Business Intelligence". Master's thesis, Vysoká škola ekonomická v Praze, 2010. http://www.nusl.cz/ntk/nusl-75901.
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The diploma thesis deals with project management in Business Intelligence, a relatively new area of information systems. The first part of the thesis describes basic background of project management in general and some specifics of information systems project management. As one of the fundamental concepts, thinking about a project within its lifecycle is accented. The practical part examines the challenges of managing BI projects in a real financial institution in the Czech Republic. The aim of this section is to fill gaps in the existing project methodology of the financial institution by creating a mapping between the project lifecycle and processes of world-renowned PMBOK methodology.
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Shaikh, Palwasha Waheed. "Intelligent Infrastructures for Charging Reservation and Trip Planning of Connected Autonomous Electric Vehicles". Thesis, Université d'Ottawa / University of Ottawa, 2021. http://hdl.handle.net/10393/42735.
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For an environmentally sustainable future, electric vehicle (EV) adoption rates have been growing exponentially around the world. There is a pressing need for constructing smart charging infrastructures that can successfully integrate the large influx of connected and autonomous EVs (CAEVs) into the smart grids. To fulfill the aspiration of massive deployment of autonomous mobility on demand (AMoD) services, the proposed fast and secure framework will need to address the long charging times and long waiting times of static charging. It will also need to consider dynamic wireless charging as a viable solution for the CAEVs on the move. In this thesis, a novel three-layer charging system design of static and dynamic wireless charging that can operate with the existing wired charging infrastructure and standards for Intelligent Transportation System (ITS) is presented. This internet of things (IoT) application is accompanied by a proposed handshake protocol with light-weight request message frames. It employs vehicle to infrastructure (V2I) and vehicle to grid (V2G) communications for fulfilling charging requests of CAEVs with the shortest possible route to the destination. The charging requests of the CAEV users are fulfilled by dynamically distributing the request over the three different types of charging equipment. Further, the requests are serviced and billed privately and securely using two different proposed payment schemes with the encrypted virtual currency. The hardware independent system can detect misalignment of the CAEVs on the wireless charging pads and the speed issue errors in dynamic wireless charging systems as well as avoid free-riders. Additionally, the proposed dynamic wireless charging network (DWCN) design specification tool is analyzed. The suggestions made by the tool for building a DWCN can enable implementers to achieve the desired charging delivery performance at the lowest cost possible. Finally, the presented system is simulated, and this verified and validated simulator is revealed to make reservations and plan trips with minimum waiting times, travel costs, and battery consumption per vehicle trip. The system results proved 90.25% charge delivery efficiency. This system is then compared with alternative system designs to help showcase its ability to aid implementers and analysts in making design choices with the simulation.
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Podder, Tanmay. "ANALYSIS & STUDY OF AI TECHNIQUES FORAUTOMATIC CONDITION MONITORING OFRAILWAY TRACK INFRASTRUCTURE : Artificial Intelligence Techniques". Thesis, Högskolan Dalarna, Datateknik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:du-4757.
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Since the last decade the problem of surface inspection has been receiving great attention from the scientific community, the quality control and the maintenance of products are key points in several industrial applications.The railway associations spent much money to check the railway infrastructure. The railway infrastructure is a particular field in which the periodical surface inspection can help the operator to prevent critical situations. The maintenance and monitoring of this infrastructure is an important aspect for railway association.That is why the surface inspection of railway also makes importance to the railroad authority to investigate track components, identify problems and finding out the way that how to solve these problems. In railway industry, usually the problems find in railway sleepers, overhead, fastener, rail head, switching and crossing and in ballast section as well. In this thesis work, I have reviewed some research papers based on AI techniques together with NDT techniques which are able to collect data from the test object without making any damage. The research works which I have reviewed and demonstrated that by adopting the AI based system, it is almost possible to solve all the problems and this system is very much reliable and efficient for diagnose problems of this transportation domain. I have reviewed solutions provided by different companies based on AI techniques, their products and reviewed some white papers provided by some of those companies. AI based techniques likemachine vision, stereo vision, laser based techniques and neural network are used in most cases to solve the problems which are performed by the railway engineers.The problems in railway handled by the AI based techniques performed by NDT approach which is a very broad, interdisciplinary field that plays a critical role in assuring that structural components and systems perform their function in a reliable and cost effective fashion. The NDT approach ensures the uniformity, quality and serviceability of materials without causing any damage of that materials is being tested. This testing methods use some way to test product like, Visual and Optical testing, Radiography, Magnetic particle testing, Ultrasonic testing, Penetrate testing, electro mechanic testing and acoustic emission testing etc. The inspection procedure has done periodically because of better maintenance. This inspection procedure done by the railway engineers manually with the aid of AI based techniques.The main idea of thesis work is to demonstrate how the problems can be reduced of thistransportation area based on the works done by different researchers and companies. And I have also provided some ideas and comments according to those works and trying to provide some proposal to use better inspection method where it is needed.The scope of this thesis work is automatic interpretation of data from NDT, with the goal of detecting flaws accurately and efficiently. AI techniques such as neural networks, machine vision, knowledge-based systems and fuzzy logic were applied to a wide spectrum of problems in this area. Another scope is to provide an insight into possible research methods concerning railway sleeper, fastener, ballast and overhead inspection by automatic interpretation of data.In this thesis work, I have discussed about problems which are arise in railway sleepers,fastener, and overhead and ballasted track. For this reason I have reviewed some research papers related with these areas and demonstrated how their systems works and the results of those systems. After all the demonstrations were taking place of the advantages of using AI techniques in contrast with those manual systems exist previously.This work aims to summarize the findings of a large number of research papers deploying artificial intelligence (AI) techniques for the automatic interpretation of data from nondestructive testing (NDT). Problems in rail transport domain are mainly discussed in this work. The overall work of this paper goes to the inspection of railway sleepers, fastener, ballast and overhead.
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Anne, Matthieu. "Intégration de services perceptuels dans une infrastructure de communication ambiante". Grenoble INPG, 2006. http://www.theses.fr/2006INPG0164.
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L'informatique ubiquiste se matérialise aujourd'hui par une croissance exponentielle du nombre d'objets communicants (OC) dans notre environnement. Dans cette perspective, un système complet de perception de l'environnement peut être constitué dynamiquement par une fédération d'OC répartis. Nous proposons un cadre conceptuel comme support d'un tel système perceptuel dans un environnement distribué. Ce cadre est utilisé pour la modélisation et l'intégration numérique des informations perçues, l'expression de la complémentarité des dispositifs de perception et leurs descriptions en vue d'une intégration dans une infrastructure de services. Nous présentons une méthode permettant au système perceptuel de se composer dynamiquement afin d'exploiter les capacités individuelles des OC et de répondre au mieux aux besoins des applications clientes. Cette approche a été validée par la réalisation d'applications adaptatives au contexte pour la communication ambianteEntry into the era of Ubiquitous Computing is leading to an exponential growth in the number of communicating device (CD) that can be found in the human environment. A consequence is that it has become possible to dynamically compose systems for perception ofhuman activities from ad hoc assemblies ofavailable CD's. Ln this thesis we present a conceptual framework for dynamic composition of ad hoc perceptual systems. We examine the problem of modelling and integration for fusing perceptual information, the expression of the complementary nature of perceptual devices, and the description of devices required for dynamic composition. We present a method for the dynamic composition of perceptual services designed to exploit the complementary nature of the perceptual devices. This approach has been validated by realization of adaptive user services that are sensitive to the context of human activity
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Sorensen, Gerrit Addison N. "A Flexible Infrastructure for Multi-Agent Systems". Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd875.pdf.
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Plainchault, Patrick Bosch Thierry. "Sécurisation de la conduite par communication véhicule infrastructure à base de transpondeurs". Toulouse : INP Toulouse, 2005. http://ethesis.inp-toulouse.fr/archive/00000137.
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Lin, Trista Shuenying. "Smart parking : Network, infrastructure and urban service". Thesis, Lyon, INSA, 2015. http://www.theses.fr/2015ISAL0138/document.
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Le parking intelligent, permettant aux conducteurs d'accéder aux informations de stationnement sur leurs appareils mobiles, réduit les difficultés des usagers. Tout d'abord, nous mettons en lumière la manière de recueillir les informations de parking en introduisant une architecture de réseaux de capteurs multi-saut, et les modèles d'intensité applicative en examinant la probabilité d'arrivées et de départs de véhicules. Puis nous étudions la stratégie de déploiement des réseaux de capteurs et définissons un problème multi-objectifs, puis nous le résolvons sur deux cartes de parking réelles. Ensuite, nous définissons un service Publish-Subscribe pour fournir aux conducteurs des informations pertinentes. Nous illustrons le système dans des réseaux véhiculaires et mobiles et soulignons l'importance du contenu et du contexte du message au conducteur. Afin d'évaluer la résilience du système, nous proposons un modèle Publish-Subscribe étendu et nous l'évaluons dans différentes circonstances imprévues. Notre travail est basé sur la prémisse que les capteurs de parking sont déployés à une grande échelle dans la ville. Nous considérons une vue d'ensemble des services urbains du point de vue de la municipalité. Ainsi, nous faisons la lumière sur deux thèmes principaux: la collecte d'informations sur le déploiement de capteurs et un modèle étendu de Publish-Subscribe. Notre travail donne un guide avant de démarrer un projet de parking intelligent ou tout service urbain similaire en temps réel. Il fournit également une plate-forme d'évaluation valable pour tester des jeux de données plus réalistes, comme des traces de véhicules ou de trafic réseauSmart parking, allowing drivers to access parking information through their smart-phone, is proposed to ease drivers' pain. We first spotlight the manner to collect parking information by introducing the multi-hop sensor network architecture, and how the network is formed. We then introduce the traffic intensity models by looking at the vehicle's arrival and departure probabilities, following the heavy-tailed distribution. We study the deployment strategy of wireless on-street parking sensor layouts. We define a multiple-objective problem and solve it with two real street parking maps. In turn, we present a Publish-Subscribe service system to provide good parking information to drivers. We illustrate the system with a vehicular network and point out the importance of content and context of a driver’s message. To evaluate the resilience, we propose an extended Publish-Subscribe model, and evaluate it under different unforeseen circumstances. Our work is based on the premise that large-scale parking sensors are deployed in the city. We look at the whole picture of urban service from viewpoint of the municipality. As such, we shed light on two main topics: the information collection on sensor deployment and an extended version of Publish-Subscribe messaging paradigm. Our work gives a guideline from network-related perspectives for city before launching a smart parking or any similar real-time urban service. It also provides a meaningful evaluation platform for testing more realistic datasets, such as real vehicle traces or network traffic
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He, Qing. "Robust-Intelligent Traffic Signal Control within a Vehicle-to-Infrastructure and Vehicle-to-Vehicle Communication Environment". Diss., The University of Arizona, 2010. http://hdl.handle.net/10150/196011.
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Modern traffic signal control systems have not changed significantly in the past 40-50 years. The most widely applied traffic signal control systems are still time-of-day, coordinated-actuated system, since many existing advanced adaptive signal control systems are too complicated and fathomless for most of people. Recent advances in communications standards and technologies provide the basis for significant improvements in traffic signal control capabilities. In the United States, the IntelliDriveSM program (originally called Vehicle Infrastructure Integration - VII) has identified 5.9GHz Digital Short Range Communications (DSRC) as the primary communications mode for vehicle-to-vehicle (v2v) and vehicle-to-infrastructure (v2i) safety based applications, denoted as v2x. The ability for vehicles and the infrastructure to communication information is a significant advance over the current system capability of point presence and passage detection that is used in traffic control systems. Given enriched data from IntelliDriveSM, the problem of traffic control can be solved in an innovative data-driven and mathematical way to produce robust and optimal outputs.In this doctoral research, three different problems within a v2x environment- "enhanced pseudo-lane-level vehicle positioning", "robust coordinated-actuated multiple priority control", and "multimodal platoon-based arterial traffic signal control", are addressed with statistical techniques and mathematical programming.First, a pseudo-lane-level GPS positioning system is proposed based on an IntelliDriveSM v2x environment. GPS errors can be categorized into common-mode errors and noncommon-mode errors, where common-mode errors can be mitigated by differential GPS (DGPS) but noncommon-mode cannot. Common-mode GPS errors are cancelled using differential corrections broadcast from the road-side equipment (RSE). With v2i communication, a high fidelity roadway layout map (called MAP in the SAE J2735 standard) and satellite pseudo-range corrections are broadcast by the RSE. To enhance and correct lane level positioning of a vehicle, a statistical process control approach is used to detect significant vehicle driving events such as turning at an intersection or lane-changing. Whenever a turn event is detected, a mathematical program is solved to estimate and update the GPS noncommon-mode errors. Overall the GPS errors are reduced by corrections to both common-mode and noncommon-mode errors.Second, an analytical mathematical model, a mixed-integer linear program (MILP), is developed to provide robust real-time multiple priority control, assuming penetration of IntelliDriveSM is limited to emergency vehicles and transit vehicles. This is believed to be the first mathematical formulation which accommodates advanced features of modern traffic controllers, such as green extension and vehicle actuations, to provide flexibility in implementation of optimal signal plans. Signal coordination between adjacent signals is addressed by virtual coordination requests which behave significantly different than the current coordination control in a coordinated-actuated controller. The proposed new coordination method can handle both priority and coordination together to reduce and balance delays for buses and automobiles with real-time optimized solutions.The robust multiple priority control problem was simplified as a polynomial cut problem with some reasonable assumptions and applied on a real-world intersection at Southern Ave. & 67 Ave. in Phoenix, AZ on February 22, 2010 and March 10, 2010. The roadside equipment (RSE) was installed in the traffic signal control cabinet and connected with a live traffic signal controller via Ethernet. With the support of Maricopa County's Regional Emergency Action Coordinating (REACT) team, three REACT vehicles were equipped with onboard equipments (OBE). Different priority scenarios were tested including concurrent requests, conflicting requests, and mixed requests. The experiments showed that the traffic controller was able to perform desirably under each scenario.Finally, a unified platoon-based mathematical formulation called PAMSCOD is presented to perform online arterial (network) traffic signal control while considering multiple travel modes in the IntelliDriveSM environment with high market penetration, including passenger vehicles. First, a hierarchical platoon recognition algorithm is proposed to identify platoons in real-time. This algorithm can output the number of platoons approaching each intersection. Second, a mixed-integer linear program (MILP) is solved to determine the future optimal signal plans based on the real-time platoon data (and the platoon request for service) and current traffic controller status. Deviating from the traditional common network cycle length, PAMSCOD aims to provide multi-modal dynamical progression (MDP) on the arterial based on the real-time platoon information. The integer feasible solution region is enhanced in order to reduce the solution times by assuming a first-come, first-serve discipline for the platoon requests on the same approach. Microscopic online simulation in VISSIM shows that PAMSCOD can easily handle two traffic modes including buses and automobiles jointly and significantly reduce delays for both modes, compared with SYNCHRO optimized plans.
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Vashi, Priyanki. "Migration of a Mobile Core Application to a Simplified Infrastructure - In-Service Performance Analysis". Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-21212.
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Ericsson has always strived for the technology leadership in its offering by designing products based on the latest technology. Going ahead with a similar thought it started exploring an idea of running a mobile core application using a Simplified Infrastructure (SI) to eventually enable the Cloud based solutions. But in order to run these type of applications in the Cloud, the in-service performance provided by such a SI should be the same as the native infrastructure in order to maintain the mobile core application’s QoS. "High availability" of the infrastructure is one of the measure of the ISP and from the ISP point of view, such a migration would be considered feasible only if the SI is able to maintain the same level of availability as provided by the native infrastructure solution without bringing in any major architecture changes within the SI. Hence this master thesis project investigates the feasibility of achieving the same availability as before if the mobile core application is to be migrated from the native infrastructure to the SI. Such a feasibility exploration was the very first attempt with respect to the SI within Ericsson, which was executed through this master thesis project. In order to achieve the goal of this thesis project a detailed system study was carried out, which focused on the native infrastructure architecture, how it was maintaining the "high availability" and how it differed from the SI. In the end, it was possible to confirm that the level of availability of infrastructure services as provided through the SI will be higher than the native infrastructure after the migration if the proposed suggestions of this master thesis project are implemented successfully. These implementations also do not change the architecture of the SI in any major way. The end results of this thesis project were also highly appreciated by Ericsson and are now part of thedevelopment plan for next mobile core infrastructure solution at Ericsson.
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Dugenie, Pascal. "Espaces Collaboratifs Ubiquitaires sur une infrastructure à ressources distribuées". Phd thesis, Université Montpellier II - Sciences et Techniques du Languedoc, 2007. http://tel.archives-ouvertes.fr/tel-00203542.
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Les réflexions menées autour de l'idée d'intelligence collective (ou collaborative) postulent que celle-ci émerge d'un système en interaction dont les dispositifs techniques, sociaux et sémiotiques sont fortement imbriqués ( PIERRE LEVY , 1994). Pour relever ce défi, cette thèse propose de conjuguer deux concepts innovants. D'abord celui d'espace collaboratif ubiquitaire pour catalyser les interactions entre groupes d'agents et services. Ensuite celui d'infrastructure à ressources distribuées pour coordonner, de façon dynamique, les ressources et la sécurité en fonction de critères de qualité de service souhaités par les groupes d'agents. Un espace collaboratif ubiquitaire intègre des processus artificiels pour réaliser du traitement intensif (simulations, fouille de données, etc.) et des interfaces multimodales, incluant la visualisation partagée en mode synchrone ou asynchrone, pour les interactions entre humains. En termes d'infrastructure, cette thèse explique pourquoi le WEB n'apporte pas une réponse adaptée à la problématique de l'intelligence collective et pourquoi nous nous sommes tournés vers GRID (GRILLE DE RESSOURCES INFORMATIQUES DISTRIBUÉES). Notamment, une propriété singulière de GRID est le service à état qui permet de coordonner des ressources distribuées de façon dynamique et sécurisée. Pour mettre ceci en évidence, nous avons développé le modèle d'architecture AGORA qui propose d'utiliser GRID pour déployer des espaces collaboratifs ubiquitaires. De cette façon, les groupes d'agents humains et artificiels s'auto-organisent dans un espace immanent où les ressources sont délivrées dynamiquement par l'infrastructure. Validé par une méthode empirique, ce modèle a été l'objet d'une élaboration itérative fondée sur des retours d'expérimentation avec des communautés d'utilisateurs. Au vu de l'avancement de nos investigations, une architecture GRID couplée avec des concepts propres aux systèmes multi-agents présente les caractéristiques nécessaires pour déployer AGORA à grande échelle avec une utilisation rationnelle des ressources, tout en offrant des garanties de sécurité et de haute disponibilité.
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Bénech, Dominique. "Infrastructures d'interaction pour les paradigmes distribués et coopératifs de la gestion intelligente de systèmes et de réseaux". Toulouse 3, 1999. http://www.theses.fr/1999TOU30149.
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Le domaine informatique, mais aussi le domaine de la gestion de reseaux et de systemes ont beaucoup evolue et un ensemble de nouveaux besoins sont apparus. Un etat de l'art et une etude detaillee nous permet de montrer que seule la combinaison des approches reparties et des approches intelligentes de la gestion offre la solution pour la gestion des systemes informatiques actuels. Dans une premiere etape, nous considerons un systeme de gestion intelligent centralise et etudions les moyens necessaires a la mise en place du paradigme distribue en vue d'obtenir une solution repartie et intelligente. Apres une analyse des besoins fonctionnels, informationnels, organisationnels et protocolaires, plusieurs solutions sont examinees pour retenir corba comme meilleure technologie support a l'infrastructure. La validite de ce choix a ete verifiee par prototypage sur une plate forme de gestion (flipper) des laboratoires de recherche de hewlett-packard. Cette etape sert a montrer la faisabilite de l'introduction du paradigme de distribution dans une approche de gestion intelligente tout en determinant une infrastructure adequate au support des interactions. Nous etudions ensuite une approche plus novatrice de la gestion, basee sur le paradigme de cooperation entre agents de gestion. Apres analyse des besoins, soulignant l'importance de l'aspect interaction et des services de la cooperation, nous avons retenu le standard de fait pour les echanges entre agents intelligents kqml. Pour conserver tous les avantages que nous avions soulignes dans notre premiere etude, nous l'avons combine avec corba pour obtenir une infrastructure d'interaction pour les paradigmes cooperatifs, denommee cobalt. Cobalt utilise corba pour transporter les messages kqml qui sont echanges entre les agents intelligents. Il a ete implemente en utilisant les technologies recentes, avec le souci de le rendre aussi generique et flexible que possible pour permettre sa reutilisation hors du contexte de la gestion.
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Ma, Yongchang. "A real-time traffic condition assessment and prediction framework using Vehicle-Infrastructure Integration (VII) with computational intelligence". Connect to this title online, 2007. http://etd.lib.clemson.edu/documents/1202501669/.
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Moscoso-Zea, Oswaldo. "A Hybrid Infrastructure of Enterprise Architecture and Business Intelligence & Analytics to Empower Knowledge Management in Education". Doctoral thesis, Universidad de Alicante, 2019. http://hdl.handle.net/10045/97408.
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The large volumes of data (Big Data) that are generated on a global scale and within organizations along with the knowledge that resides in people and in business processes makes organizational knowledge management (KM) very complex. A right KM can be a source of opportunities and competitive advantage for organizations that use their data intelligently and subsequently generate knowledge with them. Two of the fields that support KM and that have had accelerated growth in recent years are business intelligence (BI) and enterprise architecture (EA). On the one hand, BI allows taking advantage of the information stored in data warehouses using different operations such as slice, dice, roll-up, and drill-down. This information is obtained from the operational databases through an extraction, transformation, and loading (ETL) process. On the other hand, EA allows institutions to establish methods that support the creation, sharing and transfer of knowledge that resides in people and processes through the use of blueprints and models. One of the objectives of KM is to create a culture where tacit knowledge (knowledge that resides in a person) stays in an organization when qualified and expert personnel leave the institution or when changes are required in the organizational structure, in computer applications or in the technological infrastructure. In higher education institutions (HEIs) not having an adequate KM approach to handle data is even a greater problem due to the nature of this industry. Generally, HEIs have very little interdependence between departments and faculties. In other words, there is low standardization, redundancy of information, and constant duplicity of applications and functionalities in the different departments which causes inefficient organizations. That is why the research performed within this dissertation has focused on finding an adequate KM method and researching on the right technological infrastructure that supports the management of information of all the knowledge dimensions such as people, processes and technology. All of this with the objective to discover innovative mechanisms to improve education and the service that HEIs offer to their students and teachers by improving their processes. Despite the existence of some initiatives, and papers on KM frameworks, we were not able to find a standard framework that supports or guides KM initiatives. In addition, KM frameworks found in the literature do not present practical mechanisms to gather and analyze all the knowledge dimensions to facilitate the implementation of KM projects. The core contribution of this thesis is a hybrid infrastructure of KM based on EA and BI that was developed from research using an empirical approach and taking as reference the framework developed for KM. The proposed infrastructure will help HEIs to improve education in a general way by analyzing reliable and cleaned data and integrating analytics from the perspective of EA. EA analytics takes into account the interdependence between the objects that make up the organization: people, processes, applications, and technology. Through the presented infrastructure, the doors are opened for the realization of different research projects that increment the type of knowledge that is generated by integrating the information of the applications found in the data warehouses together with the information of the people and the organizational processes that are found in the EA repositories. In order to validate the proposal, a case study was carried out within a university with promising initial results. As future works, it is planned that different HEIs' activities can be automated through a software development methodology based on EA models. In addition, it is desired to develop a KM system that allows the generation of different and new types of analytics, which would be impossible to obtain with only transactional or multidimensional databases.
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Vanderschuren, Maria Johanna Wilhelmina Antoinette. "Intelligent transport systems for South Africa impact assessment through microscopic simulation in the South African context /". Enschede : University of Twente [Host], 2006. http://doc.utwente.nl/57131.
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Proefschrift Universiteit Twente, Enschede.Op omslag: Intelligent transport systems in South Africa. Auteursnaam op omslag: Marianne Vanderschuren. Met lit. opg. - Met een samenvatting in het Nederlands.
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Khader, Michael. "A fuzzy hierarchical decision model and its application in networking datacenters and in infrastructure acquisitions and design". ScholarWorks, 2009. https://scholarworks.waldenu.edu/dissertations/657.
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According to several studies, an inordinate number of major business decisions to acquire, design, plan, and implement networking infrastructures fail. A networking infrastructure is a collaborative group of telecommunications systems providing services needed for a firm's operations and business growth. The analytical hierarchy process (AHP) is a well established decision-making process used to analyze decisions related to networking infrastructures. AHP is concerned with decomposing complex decisions into a set of factors and solutions. However, AHP has difficulties in handling uncertainty in decision information. This study addressed the research question of solutions to AHP deficiencies. The solutions were accomplished through the development of a model capable of handling decisions with incomplete information and uncertain decision operating environment. This model is based on AHP framework and fuzzy sets theory. Fuzzy sets are sets whose memberships are gradual. A member of a fuzzy set may have a strong, weak, or a moderate membership. The methodology for this study was based primarily on the analytical research design method, which is neither quantitative nor qualitative, but based on mathematical concepts, proofs, and logic. The model's constructs were verified by a simulated practical case study based on current literature and the input of networking experts. To further verify the research objectives, the investigator developed, tested, and validated a software platform. The results showed tangible improvements in analyzing complex networking infrastructure decisions. The ability of this model to analyze decisions with incomplete information and uncertain economic outlook can be employed in the socially important areas such as renewable energy, forest management, and environmental studies to achieve large savings.
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Tian, Yi. "Self-Powered Intelligent Traffic Monitoring Using IR Lidar and Camera". Thesis, Virginia Tech, 2017. http://hdl.handle.net/10919/74949.
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This thesis presents a novel self-powered infrastructural traffic monitoring approach that estimates traffic information by combining three detection techniques. The traffic information can be obtained from the presented approach includes vehicle counts, speed estimation and vehicle classification based on size. Two categories of sensors are used including IR Lidar and IR camera. With the two sensors, three detection techniques are used: Time of Flight (ToF) based, vision based and Laser spot flow based. Each technique outputs observations about vehicle location at different time step. By fusing the three observations in the framework of Kalman filter, vehicle location is estimated, based on which other concerned traffic information including vehicle counts, speed and class is obtained. In this process, high reliability is achieved by combing the strength of each techniques. To achieve self-powering, a dynamic power management strategy is developed to reduce system total energy cost and optimize power supply in traffic monitoring based on traffic pattern recognition. The power manager attempts to adjust the power supply by reconfiguring system setup according to its estimation about current traffic condition. A system prototype has been built and multiple field experiments and simulations were conducted to demonstrate traffic monitoring accuracy and power reduction efficacy.Master of Science
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Pierson, Jérôme. "Une infrastructure de gestion de l'information de contexte pour l'intelligence ambiante". Phd thesis, Grenoble 1, 2009. http://www.theses.fr/2009GRE10201.
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Les environnements d'intelligence ambiante servent d'interface entre les applications et les utilisateurs. Ces applications doivent prendre en compte le contexte dans lequel les utilisateurs évoluent (le lieu, la position sociale ou hiérarchique ou l'activité par exemple) pour adapter leur comportement. Il doit exister un flux d'informations de l'environnement vers les applications. Ces applications doivent pouvoir prendre en compte dynamiquement l'arrivée de nouveaux éléments dans l'environnement (utilisateurs ou dispositifs), et les informations de contexte en provenance de l'environnement doivent pouvoir parvenir aux applications entrantes ; ces flux d'informations ne peuvent pas être déterminés à l'avance et doivent se construire pendant l'exécution. Les modèles de gestion de l'information de contexte existants ne traitent pas ou peu cet aspect dynamique de l'informatique diffuse. Nous proposons d'utiliser les technologies du web sémantique pour décrire et rechercher ces informations : l'information de contexte est exprimée en RDF et décrite par des ontologies OWL. Ces technologies, parce qu'elles sont fondées sur l'hypothèse du monde ouvert, assurent l'ouverture du système et la prise en compte de dispositifs hétérogènes. Nous montrons qu'à l'aide d'un protocole simple qui permet à chacun des dispositifs et des applications d'exhiber sur le réseau un modèle des informations de contexte qu'il produit ou qu'il recherche et de s'identifier, toutes les applications de l'environnement satisfont leurs besoins en informations de contexte. De surcroît, l'ouverture des langages de description d'ontologies permet l'extension des descriptions de contexte à tout moment et les technologies d'alignement d'ontologies permettent l'utilisation d'ontologies développées indépendamment. Nous avons implémenté un composant pour la gestion de l'information de contexte fondé sur ce modèle. Puis nous avons développé une architecture distribuée où les dispositifs et les applications embarquent ce composant et exposent un modèle de l'information de contexte qu'ils recherchent ou produisent. Nous avons montré comment cette architecture permet d'accepter sans interruption de nouveaux composantsIn a pervasive computing environment, the environment itself is the interface between services and users. Using context information coming from sensors, location technologies and agregation services, applications adapt their run-time behaviour to the context in which users evolve (e. G. , physical location, social or hierarchical position, current tasks as well as related information). These applications have to deal with the dynamic integration in the environment of new elements (users or devices), and the environment has to provide context information to newly designed applications. We study and develop a dynamic context management system for pervasive application. It is flexible enough to be used by heterogeneous applications and to run dynamically with new incoming devices. We have designed an architecture in which context information is distributed in the environment. Each device or service implements a context manager component in charge of maintaining its local context. It can communicate with other context manager components : some of them are context information producers, some of them are context information consumers and some of them are both. We have defined a simple protocol to allow a consumer to identify and determine the producer for the information it needs. Context manager components express their context information using an OWL ontology, and exchange RDF triples with each other. The openness of ontology description languages makes possible the extension of context descriptions and ontology matching helps dealing with independently developed ontologies. Thus, this architecture allows for the introduction of new components and new applications without interrupting what is working
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Pierson, Jérôme. "Une infrastructure de gestion de l'information de contexte pour l'intelligence ambiante". Phd thesis, Université Joseph Fourier (Grenoble), 2009. http://tel.archives-ouvertes.fr/tel-00441121.
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Les environnements d'intelligence ambiante servent d'interface entre les applications et les utilisateurs. Ces applications doivent prendre en compte le contexte dans lequel les utilisateurs évoluent (le lieu, la position sociale ou hiérarchique ou l'activité par exemple) pour adapter leur comportement. Il doit exister un flux d'informations de l'environnement vers les applications. Ces applications doivent pouvoir prendre en compte dynamiquement l'arrivée de nouveaux éléments dans l'environnement (utilisateurs ou dispositifs), et les informations de contexte en provenance de l'environnement doivent pouvoir parvenir aux applications entrantes ; ces flux d'informations ne peuvent pas être déterminés à l'avance et doivent se construire pendant l'exécution. Les modèles de gestion de l'information de contexte existants ne traitent pas ou peu cet aspect dynamique de l'informatique diffuse. Nous proposons d'utiliser les technologies du web sémantique pour décrire et rechercher ces informations : l'information de contexte est exprimée en RDF et décrite par des ontologies OWL. Ces technologies, parce qu'elles sont fondées sur l'hypothèse du monde ouvert, assurent l'ouverture du système et la prise en compte de dispositifs hétérogènes. Nous montrons qu'à l'aide d'un protocole simple qui permet à chacun des dispositifs et des applications d'exhiber sur le réseau un modèle des informations de contexte qu'il produit ou qu'il recherche et de s'identifier, toutes les applications de l'environnement satisfont leurs besoins en informations de contexte. De surcroît, l'ouverture des langages de description d'ontologies permet l'extension des descriptions de contexte à tout moment et les technologies d'alignement d'ontologies permettent l'utilisation d'ontologies développées indépendamment. Nous avons implémenté un composant pour la gestion de l'information de contexte fondé sur ce modèle. Puis nous avons développé une architecture distribuée où les dispositifs et les applications embarquent ce composant et exposent un modèle de l'information de contexte qu'ils recherchent ou produisent. Nous avons montré comment cette architecture permet d'accepter sans interruption de nouveaux composants.
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Annam, Raja Bharat. "Synthetic Innovation to Complex Intersection Control: Intelligent Roundabout in Connected Vehicle Environment". University of Cincinnati / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1623169949508287.
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Klein, Hans K. (Hans Konrad). "Institutions, innovation, and information infrastructure : the social construction of intelligent transportation systems in the U.S., Europe, and Japan". Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/10578.
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Zaghdoud, Radhia. "Hybridation d’algorithme génétique pour les problèmes des véhicules intelligents autonomes : applications aux infrastructures portuaires de moyenne taille". Thesis, Ecole centrale de Lille, 2015. http://www.theses.fr/2015ECLI0023/document.
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L’objectif de ce travail est de développer un système d’affectation des conteneurs aux véhicules autonomes intelligents (AIVs) dans un terminal à conteneurs. Dans la première phase, on a développé un système statique pour résoudre le problème multi-objectif optimisant la durée totale des opérations de déplacement des conteneurs, le temps d’attente des véhicules aux niveaux de points de chargement et de déchargement et l’équilibre de temps de travail entre les véhicules. L’approche proposée est l’algorithme génétique(AG). Une extension de cette approche a été ensuite effectuée pour corriger les limites de la précédente. Pour choisir la meilleure approche, une étude comparative a été réalisée entre trois approches : AG, AG & DIJK et AG & DIJK & HEUR. Les résultats numérique ont montré que l’approche AG & DIJK & HEUR est meilleure. Dans la deuxième phase, on a étudié la robustesse de notre système dans un environnement dynamique. Un retard de l’arrivée d’un navire au port ou un dysfonctionnement de l’un des équipements peutperturber le planning des opérations et donc influencer sur les opérations d’affectation des conteneurs. L’idée était d’ajouter les nouveaux conteneurs aux véhicules qui sont déjà non disponibles. D’autres cas de perturbation comme la congestion routière, la non disponibilité de certaines portions de la routes ont été étudiés expérimentalementEt les résultats numériques ont montré la robustesse de notre approche pour le cas dynamique.Mots-clés : Conteneurs, AIV, routage, optimisation, algorithme génetique, environnement dynamiqueThe objective of our work is to develop a container assignment system for intelligent autonomous vehicles (AIVS) in a container terminal. Given the complexity of this problem, it was proposed to decompose it into three problems: The problem of dispatching containers to AIVS, the AIVS routing problem and the problem of scheduling containers to queues of AIVS. To achieve this goal, we developed in the first phase, a static system for multi-objective problem to optimize the total duration of the containers transportation, the waiting time of vehicles at loading points and the equilibrium of working time between vehicles. The approach used was the genetic algorithm (GA). This approach was applied to optimize only the assignment operation without influence on the choice of the path traveled by each AIV. An extension of this work was then made to improve the results found. For this purpose, a comparative study was carried out between three approaches: The first approach is the AG, the second approach is the GA and the Dijkstra algorithm (DIJK) that was used to find the shortest path for each vehicle and the third approach is the AG and DIJK and heuristic (HEUR) which was proposed to choose the nearest vehicle of each container. The numerical study showed the best performance of the AG & DJK & HEUR approach over the other two approaches. In the second phase of our project, the robustness of our system in a dynamic environment has been studied. A delay of the arrival of a ship at the port or malfunction of one of any equipment of the port can cause a delay of one of the operations of loading or unloading process. This will affect the container assignment operation. The idea was to add new containers to vehicles that are already unavailable. The traffic can also cause a delay in arrival of the vehicle at the position of the container or the unavailability of one of the paths crossing point. These cases were investigated experimentally, numerical results showed the robustness of our approach to dynamic case