To see the other types of publications on this topic, follow the link: Interactive aspect.
Dissertations / Theses on the topic 'Interactive aspect'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 dissertations / theses for your research on the topic 'Interactive aspect.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.
1
Denois, Véronique. "La télévision démocratique : recherche sur l'hypothèse d'un téléspectateur sujet dans l'espace audio-visuel." Paris 5, 1996. http://www.theses.fr/1996PA05H090.
Full textAbstract:
Notre recherche veut rendre compte d'un moment fondateur de l'espace audio-visuel en mutation dans lequel nous évoluons : celui du basculement de la télévision du monopole dans la logique d'un espace privatise. Plusieurs analyses mettent l'accent sur le pouvoir économique, l'assujettissement de l'outil audiovisuel à ses financiers. Revendiquant la liberté si tardivement acquise dans le cas français, les professionnels prétendaient n'accepter qu'un prescripteur : le public. Ils entendaient mettre en œuvre la "démocratie télévisuelle" par la soumission de la communication médiatisée aux objectifs de la communication sociale. Nous avons pris pour objet de vérifier la réalité de cette démocratie télévisuelle, d'en comprendre les mécanismes en scrutant le jeu relationnel entre la télévision et son public. La notion de public à laquelle se réfèrent les professionnels de l'audiovisuel organise socialement cet espace. Notre travail propose l'analyse de cette notion, tout d'abord comme réalité de la dynamique du champ audio-visuel, ensuite comme hypothèse d'un acteur susceptible de se reconnaitre comme tel dans l'espace social. Au travers des déclarations des professionnels recueillies de 1987 à 1992, notre première partie analyse les constructions du téléspectateur. L’étude d'un feuilleton interactif nous permet ensuite de tester l'hypothèse d'un téléspectateur "partenaire" dans une situation de confrontation plus directe. Enfin, la possibilité d'une constitution téléspectateurs en contre-pouvoir face au champ audiovisuel est évoquée au travers d'un historique et d'une étude de terrain auprès des associations de téléspectateurs.
2
De, Jesus Leitgel Gille Marluce. "Mélopée interactive : étude de la prosodie, du langage et des interactions entre le bébé et sa mère après une séparation, due à une hospitalisation précoce." Paris 7, 2012. http://www.theses.fr/2012PA070099.
Full textAbstract:
La présente recherche porte sur l'impact d'une séparation précoce dans le processus d'acquisition du langage par le bébé, de 3 à 30 mois. L'objectif est de vérifier si cette séparation inopinée, due à un épisode bref d'hospitalisation, implique des particularités en termes d'interactions mère-bébé et de prosodie. L'étude repose sur l'analyse des interactions vocales entre la mère et le bébé : analyse du langage adressé au bébé (LAB) par la mère, et du langage adressé à la mère (LAM) par le bébé. Le protocole de recherche, réalisé au sein du Programme PILE, est fondé sur des séances de tournage vidéo de 10 dyades mères-bébés réalisées à différents stade du développement du bébé (aux âges de 3, 6, 9, 12, 15, 18, 24 et 30 mois). Ces séquences sont ensuite analysées à l'aide des outils PRAAT et CLAN. Il s'agit d'étudier l'hypothèse d'un impact de cette séparation précoce sur les interactions de la dyade, l'hypothèse d'une anxiété maternelle consécutive, et celle d'un développement du langage particulier chez le bébé. Pour ce faire, de multiples critères sont évalués :la prosodie émotionnelle, la prosodie linguistique, la productivité et la diversité Iexicales, l'intonation, la longueur moyenne des énoncés, la variation de la fréquence fondamentale, le temps moyen de phonation mais aussi le tempérament du bébé, l'attachement et les représentations maternelles. Les résultats indiquent une modification du LAB avec un pourcentage de prosodie joyeuse supérieur à celui du groupe témoin. Les variations du LAM observées dans la période pré-linguistique et le décalage de 3 mois dans la trajectoire développementale du langage du groupe clinique est rattrapé à l'âge de 24 mois et confirmé à 30 mois. Les résultats suggèrent qu'à la suite d'une séparation précoce, il yaurait un processus d'ajustement réciproque de la mère et du bébé permettant ce rattrapage<br>The present research is about the effect of an early parting in the process of language acquisition by 3 to 30-month-old infants. The goal is to check whether this unexpected parting, due to a short hospitalization, involves characteristics in terms of mother-infant interactions and prosody. The study rests on the analysis of vocal interactions between mothers and infants : analysis of the infant-directed language (LAB) from mothers, and of the mother-directed language (LAM) from infants. The research protocol, carried out within the PILE Program, is based on video sessions filming 10 mother-infant dyads at different developmental stages of the infant (at the ages of 3, 6, 9, 12, 15, 18, 24 and 30 months). Theses sessions are then analysed with the PRAAT and CLAN tools. We examine three assumptions: an effect of this early parting on the dyad's interactions, a resuiting maternai anxiety, and a distinctive language development of the infant. To this end, numerous criteria are assessed : affective prosody, linguistic prosody, lexical productivity and variety, tone, mean length of utterance, changes in fundamental frequency, mean time of phonation, but also infant's disposition, attachment and maternai representations. The results show a change in the LAB with a higher percentage of joyful prosody than in the control group. The changes in the LAB noticed in the pre-linguistic period and the 3-month gap in the developmental path of language in the clinical group are made up for at the age of 24 months and confirmed at 30 months. The results propose that following an early parting, there would be a process of mutual adaptation of mothers and infants allowing this adjustment.
3
St-Pierre, Audrey. "Attachement des enfants en famille d'accueil : contribution de la santé mentale et de la sensibilité interactive du parent d'accueil ainsi que des caractéristiques du placement." Doctoral thesis, Université Laval, 2016. http://hdl.handle.net/20.500.11794/27264.
Full textAbstract:
Cette étude a pour objectif d 'examiner les rôles de la sensibilité interactive (SI) et des symptômes liés à la dépression du parent sur la sécurité d 'attachement (SA) des enfants de 12 à 42 mois placés en famille d 'accueil. Certaines caractéristiques propres à la situation de placement sont également analysées comme étant des modérateurs potentiels de la relation entre la SI et la SA, soit le nombre de placements vécus par l 'enfant, l 'âge de celui-ci lors du placement ainsi que la durée du placement. Le type de famille d 'accueil dans lequel vit l' enfant est analysé comme étant en lien avec la sécurité d' attachement par le biais d une médiation de la SI. L 'échantillon est composé de 41 enfants. Les résultats permettent d' identifier la SI comme étant un facteur prépondérant pour la SA de l 'enfant, alors que les symptômes de dépression ne semblent pas contribuer à celle-ci. Les caractéristiques du placement ne modèrent pas le lien trouvé entre la SI et la SA, ce qui renforce l'importance des facteurs plus proximaux pour l 'enfant, comme la SI. Le lien entre le type de famille d 'accueil et la SA semble médiatisé par la SI.
4
Radeau, Monique. "Interaction audio-visuelle et modularité = Auditory-visual interaction and modularity." Doctoral thesis, Universite Libre de Bruxelles, 1991. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/212982.
Full text
5
Guedj, Mikaël. "Peut-on déléguer le tri des urgences ophtalmologiques à un algorithme informatisé auto-implémenté par le patient ? : le projet ICARE (Interactive Care Assessment of Risk factors and Emergency levels)." Thesis, Sorbonne Paris Cité, 2018. http://www.theses.fr/2018USPCB190.
Full textAbstract:
Chaque année en France, 4 millions de consultations en urgence ne sont pas justifiées d'un point de vue médical et presque la moitié des patients se présentant aux Urgences auraient vocation à être traités ailleurs, libérant ainsi les services d'Urgences destinés à traiter les réelles situations urgentes. L'engorgement des Urgences a conduit les services à mettre en place une priorisation de la prise en charge à l'accueil des patients ; cette priorisation n'est pas standardisée ni rationalisée. Nous avons conçu un outil informatisé permettant le tri des niveaux d'urgence en fonction des symptômes, antécédents et contexte médical du patient. Par cet outil, baptisé iCare, le patient seul ou aidé d'un tiers, doit être capable de détecter et de prioriser ses symptômes devant mener à une consultation urgente, par opposition aux symptômes moins urgents ou non-urgents. L'évaluation de l'algorithme iCare concernant les pathologies oculaires a pour ambition de disposer d'un outil de tri généralisable et reproductible au sein des différentes unités de soin, mais aussi à améliorer la responsabilisation et l'autonomie des patients dans la compréhension de leurs symptômes et leur recours au système de soins (concept d'empowerment en e-santé). L'objectif principal de notre recherche interventionnelle ne comportant que des risques et contraintes minimes consistait à valider l'algorithme de tri iCare, déterminant le niveau d'urgence approprié correspondant aux situations cliniques rencontrées. Cette validité était basée sur les calculs de sensibilité, spécificité, valeurs prédictives positives et négatives. Le niveau de référence retenu était le niveau d'urgence déterminé par le médecin à l'issue de sa consultation. Un effectif de 1000 patient se présentant pour une urgence ophtalmologique s'est vu proposer la participation à la recherche à son arrivée à l'accueil de deux centres de soins parisiens (Fondation Rothschild, Institut Vernes), à compter de la date d'acceptation du protocole par le Comité pour la Protection des Personnes dans la recherche biomédicale (CPP). Si le patient consentait à participer à la recherche, un technicien d'étude clinique (TEC) lui faisait remplir l'algorithme iCare, présenté sous forme de questionnaire interactif sur tablette tactile, dont l'implémentation prenait en routine moins de deux minutes. À l'issue de cette implémentation, un niveau d'urgence A, B, C ou D était fourni par le programme. Le niveau d'urgence attribué par l'algorithme n'était connu ni du patient, ni du médecin qui allait l'examiner. Le niveau d'urgence déterminé par le médecin à l'issue de son examen clinique (gold standard du critère de jugement principal) était recueilli, sous forme de niveau A,B,C,D ou de choix binaire Urgent / Non Urgent (U / NU). D'autres paramètres, comme temps nécessaire et le besoin d'aide au remplissage, le motif de consultation, les données démographiques et le temps d'attente sur place ont également été analysés. Cette thèse dresse un état de l'art de l'appellation "e-santé" en 2018, aborde les problématiques actuelles de santé publique liées à l'hyperfréquentation des services d'urgence en France, et présente l'outil iCare comme solution potentielle pour simplifier et rationaliser le tri des niveaux d'urgence en ophtalmologie (aspect santé publique), comme moyen d'éducation à la santé et d'autonomisation des patients dans la lecture de leurs symptômes (aspect empowerment), mais aussi comme outil généralisable de big data rapportant les motifs de consultation dans les services d'urgence, les cabinets ou même à domicile (aspect épidémiologique)<br>Every year in France, 4 million emergency consultations are not justified from a medical point of view and almost half of the patients presenting to the Emergency Department could be treated elsewhere, thus releasing the Emergency Departments to take care of the real urgent situations. The overcrowding of the ERs led the services to set up a prioritization of care for the reception of patients; this prioritization is not standardized nor rationalized. We designed a computerized tool to sort emergency levels based on a patient's symptoms, background, and medical context. By this tool, called iCare, the patient alone or assisted by a third party, must be able to detect and prioritize his symptoms leading to an urgent consultation, as opposed to less urgent or non-urgent symptoms. The evaluation of the iCare algorithm regarding ocular pathologies aims to run a generalizable and reproducible sorting tool within the different care units, but also to improve patient autonomy in the understanding of their symptoms and their use of the healthcare system (e-health concept of empowerment). The main objective of our "interventional research involving only minimal risks and constraints" was to validate the iCare sorting algorithm, determining the appropriate level of urgency corresponding to the clinical situations encountered. This validity was based on the calculations of sensitivity, specificity, positive and negative predictive values. The chosen gold-standard was the level of emergency determined by the doctor after his consultation. A number of 1000 patients presenting for an ophthalmological emergency were offered to participate in research upon arrival at the reception of two Parisian health centers (Rothschild Foundation, Vernes Institute), from the date of protocol acceptance by the Committee for the Protection of Persons in biomedical research (CPP). If the patient consented to participate in research, a Clinical Study Technician (CST) made him fill in the iCare algorithm, presented as an interactive questionnaire on touchscreen tablet, whose implementation took less than two minutes. At the end of this implementation, a level of emergency A, B, C or D was provided by the program. The level of emergency attributed by the algorithm was unknown to either the patient or the doctor who was going to examine him. The level of emergency determined by the physician at the end of his clinical examination (gold standard of the primary endpoint) was collected as a level A, B, C, D or as binary choice Urgent / No Urgent (U / NU). Other parameters, such as the time required and the need for filling assistance, the reason for consultation, demographics and on-site waiting time were also analyzed. This thesis outlines a state of the art of the word "e-health" in 2018, addresses the current public health issues related to high traffic in emergency services in France, and features the iCare tool as a potential solution to simplify and rationalize the sorting of emergency levels in ophthalmology (public health feature), as a means of health education and empowerment of patients in the reading of their symptoms (empowerment feature), but also as a generalizable tool for big data reporting of the reasons for consultation in the emergency wards, private practices or even at home health-related internet researches (epidemiological feature)
6
Fabre, John B., and n/a. "Designing time at the user interface a study of temporal aspects of usability." Swinburne University of Technology, 2000. http://adt.lib.swin.edu.au./public/adt-VSWT20060712.121947.
Full textAbstract:
This thesis is concerned with temporal factors from the perspective of the interactive designer/interface designer and usability as a construct for guiding design activity. The research reported herein examines the many factors which emerge when considering the name of interaction at the user interface. Temporal
Aspects of Usability (TAU) is presented as a multivariate construct. It is neither a
property that exists 'in the head alone' not is it an aspect of the system but rather
an emergent property arising from task based interactions.
From a theoretical perspective, it is argued that the inclusion of temporal considerations to the task model more fully specifies 'Usability' as a design construct. A model of TAU is evolved and validated utilizing situated interviews with designers. This resulted in an Enhanced model of TAU. A method for developing temporally informed task models, KAT-LITTER (Leveraging Interactions Through Effective Responses), provides temporal design heuristics as the confluence of, KAT (Knowledge Analysis of Task) a task analysis method, and the enhanced TAU model. As a method, KAT-LITTER is device independent, data centered, domain specific and necessarily independent of existing implementations. A process evaluation of KAT-LITTER showed that it influenced the design process in two significant ways: firstly, designers using KAT-LITTER spent more time reasoning about temporal issues than designers using KAT alone, and secondly these same designers considered a broader spectrum of temporal issues.
The development of TAU, its accompanying method, KAT-LITTER, complete with a notational system for analysis represent a significant step forward.
7
Yim, Chau Yin Jenny. "The interaction of viewpoint aspect and situation aspect in Cantonese." HKBU Institutional Repository, 1998. http://repository.hkbu.edu.hk/etd_ra/104.
Full text
8
Pinches, Claire. "Aspects of interactive scientific investigation in space." Thesis, Imperial College London, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.421369.
Full text
9
Medeiros, J. C. de. "Aspects of an HF interactive computer link." Thesis, University of Kent, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374421.
Full text
10
Marston, A. P. "Observational aspects of interacting galaxies." Thesis, University of Manchester, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382762.
Full text
11
Targher, Stefano. "Spatiotemporal aspects in audiovisual interaction." Doctoral thesis, Università degli studi di Trento, 2011. https://hdl.handle.net/11572/368447.
Full textAbstract:
How humans perceive everyday reality is one of the most fascinating and enduring interest of different scientific disciplines. The aim of the present dissertation is to investigate - from both a theoretical and an empirical perspective - some aspects concerning the crossmodal interactions between hearing and vision. In the first part of the introduction special attention is given to the cortical and subcortical neural substrate involved in integrating different sensory modalities, and more specifically, audiovisual stimuli. Experimental studies in the literature designed to empirically investigate different aspects of audiovisual interaction and the potential existence of a sensory dominance between hearing and vision will be presented. In the last part, the introduction will be focalized to discuss some of the principal models aimed to predict the outcome of audiovisual integration and its relation with sensory dominance.
The following chapters present the experimental studies designed to empirically investigate different aspects of audiovisual interactions and the role of eye movements in auditory cognition.
In a first study, the effects of eye movements on auditory spatial representation will be explored. The aim is to disentangle controversial results in the literature emerged in two studies that used different type of sounds (i.e., free field sounds provided through loudspeakers vs. sounds provided intracranially through headphones) and different tasks.
In a second study, the disputed relation between perception and action will be investigated in presence of a crossmodal audiovisual illusion. The aim is to verify whether participants’ visuo-motor behaviour might be biased by the visual illusion as emerged for perception, and eventually, whether perceptive and motor biases are correlated.
The last study presented in this dissertation will explore the effects of crossmodal audiovisual stimulation in low vision patients and the relation between the visual pathology. More precisely, the possible visual detection enhancement provided by a sound coupled with a visual stimulus will be investigated. To this purpose, in a first experiment, the effect of spatial disparity between audiovisual stimuli will be deepened while the last two experiments will be focalized on the effects of temporal audiovisual disparities of crossmodal stimuli.
The results of the studies described in the present dissertation provide evidence of an effect of eye movements in the auditory spatial cognition and a relation between the perceptive and visuo-motor systems in presence of an illusion induced by a sound. Moreover the presented findings report for the first time a significant crossmodal effect of audition on visual perception in low vision patients.
12
Targher, Stefano. "Spatiotemporal aspects in audiovisual interaction." Doctoral thesis, University of Trento, 2011. http://eprints-phd.biblio.unitn.it/634/1/Stefano_Targher_PhD_Thesis.pdf.
Full textAbstract:
How humans perceive everyday reality is one of the most fascinating and enduring interest of different scientific disciplines. The aim of the present dissertation is to investigate - from both a theoretical and an empirical perspective - some aspects concerning the crossmodal interactions between hearing and vision. In the first part of the introduction special attention is given to the cortical and subcortical neural substrate involved in integrating different sensory modalities, and more specifically, audiovisual stimuli. Experimental studies in the literature designed to empirically investigate different aspects of audiovisual interaction and the potential existence of a sensory dominance between hearing and vision will be presented. In the last part, the introduction will be focalized to discuss some of the principal models aimed to predict the outcome of audiovisual integration and its relation with sensory dominance.
The following chapters present the experimental studies designed to empirically investigate different aspects of audiovisual interactions and the role of eye movements in auditory cognition.
In a first study, the effects of eye movements on auditory spatial representation will be explored. The aim is to disentangle controversial results in the literature emerged in two studies that used different type of sounds (i.e., free field sounds provided through loudspeakers vs. sounds provided intracranially through headphones) and different tasks.
In a second study, the disputed relation between perception and action will be investigated in presence of a crossmodal audiovisual illusion. The aim is to verify whether participants’ visuo-motor behaviour might be biased by the visual illusion as emerged for perception, and eventually, whether perceptive and motor biases are correlated.
The last study presented in this dissertation will explore the effects of crossmodal audiovisual stimulation in low vision patients and the relation between the visual pathology. More precisely, the possible visual detection enhancement provided by a sound coupled with a visual stimulus will be investigated. To this purpose, in a first experiment, the effect of spatial disparity between audiovisual stimuli will be deepened while the last two experiments will be focalized on the effects of temporal audiovisual disparities of crossmodal stimuli.
The results of the studies described in the present dissertation provide evidence of an effect of eye movements in the auditory spatial cognition and a relation between the perceptive and visuo-motor systems in presence of an illusion induced by a sound. Moreover the presented findings report for the first time a significant crossmodal effect of audition on visual perception in low vision patients.
13
Li, QianQian. "Human-Computer Interaction: Security Aspects." Doctoral thesis, Università degli studi di Padova, 2018. http://hdl.handle.net/11577/3427166.
Full textAbstract:
Along with the rapid development of intelligent information age, users are having a growing interaction with smart devices.
Such smart devices are interconnected together in the Internet of Things (IoT).
The sensors of IoT devices collect information about users' behaviors from the interaction between users and devices.
Since users interact with IoT smart devices for the daily communication and social network activities, such interaction generates a huge amount of network traffic.
Hence, users' behaviors are playing an important role in the security of IoT smart devices, and the security aspects of Human-Computer Interaction are becoming significant.
In this dissertation, we provide a threefold contribution:
(1) we review security challenges of HCI-based authentication, and design a tool to detect deceitful users via keystroke dynamics; (2) we present the impact of users' behaviors on network traffic, and propose a framework to manage such network traffic; (3) we illustrate a proposal for energy-constrained IoT smart devices to be resilient against energy attack and efficient in network communication.
More in detail, in the first part of this thesis, we investigate how users' behaviors impact on the way they interact with a device.
Then we review the work related to security challenges of HCI-based authentication on smartphones, and Brain-Computer Interfaces (BCI).
Moreover, we design a tool to assess the truthfulness of the information that users input using a computer keyboard.
This tool is based on keystroke dynamics and it relies on machine learning technique to achieve this goal.
To the best of our knowledge, this is the first work that associates the typing users' behaviors with the production of deceptive personal information.
We reached an overall accuracy of 76% in the classification of a single answer as truthful or deceptive.
In the second part of this thesis, we review the analysis of network traffic, especially related to the interaction between mobile devices and users.
Since the interaction generates a huge amount of network traffic, we propose an innovative framework, GolfEngine, to manage and control the impact of users behavior on the network relying on Software Defined Networking (SDN) techniques.
GolfEngine provides users a tool to build their security applications and offers Graphical User Interface (GUI) for managing and monitoring the network.
In particular, GolfEngine provides the function of checking policy conflicts when users design security applications and the mechanism to check data storage redundancy.
GolfEngine not only prevents the malicious inputting policies but also it enforces the security about network management of network traffic.
The results of our simulation underline that GolfEngine provides an efficient, secure, and robust performance for managing network traffic via SDN.
In the third and last part of this dissertation, we analyze the security aspects of battery-equipped IoT devices from the energy consumption perspective.
Although most of the energy consumption of IoT devices is due to user interaction, there is still a significant amount of energy consumed by point-to-point communication and IoT network management.
In this scenario, an adversary may hijack an IoT device and conduct a Denial of Service attack (DoS) that aims to run out batteries of other devices.
Therefore, we propose EnergIoT, a novel method based on energetic policies that prevent such attacks and, at the same time, optimizes the communication between users and IoT devices, and extends the lifetime of the network.
EnergIoT relies on a hierarchical clustering approach, based on different duty cycle ratios, to maximize network lifetime of energy-constrained smart devices.
The results show that EnergIoT enhances the security and improves the network lifetime by 32%, compared to the earlier used approach, without sacrificing the network performance (i.e., end-to-end delay).<br>Insieme al rapido sviluppo dell'era dell'informazione, gli utenti stanno avendo una crescente interazione con i dispositivi intelligenti.
Tali dispositivi intelligenti sono interconnessi tra loro nell'Internet of Things (IoT).
I sensori dei dispositivi IoT raccolgono informazioni sui comportamenti degli utenti dall'interazione tra utenti e dispositivi.
Poiché gli utenti interagiscono con i dispositivi intelligenti IoT per le attività quotidiane di comunicazione e social network, tale interazione genera un'enorme quantità di traffico di rete.
Quindi, i comportamenti degli utenti stanno giocando un ruolo importante nella sicurezza dei dispositivi intelligenti IoT e gli aspetti di sicurezza dell'interazione uomo-macchina stanno diventando significativi.
In questa tesi, forniamo un triplice contributo:
(1) esaminiamo le sfide alla sicurezza dell'autenticazione basata su HCI e progettiamo uno strumento per rilevare utenti ingannevoli tramite la dinamica dei tasti;
(2) presentiamo l'impatto dei comportamenti degli utenti sul traffico di rete e proponiamo un framework per gestire tale traffico di rete;
(3) illustriamo una proposta per dispositivi intelligenti IoT con vincoli energetici per essere resilienti contro attacchi energetici ed efficienti nella comunicazione di rete.
Più in dettaglio, nella prima parte di questa tesi, analizziamo il modo in cui i comportamenti degli utenti influiscono sul modo in cui essi interagiscono con un dispositivo.
Quindi, esaminiamo il lavoro relativo alle sfide di sicurezza dell'autenticazione basata su HCI su smartphone e Brain-Computer Interfaces (BCI).
Inoltre, progettiamo uno strumento per valutare la veridicità delle informazioni che gli utenti inseriscono usando la tastiera di un computer.
Questo strumento si basa sulla dinamica dei tasti e si basa sulla tecnica di apprendimento automatico per raggiungere tale obiettivo.
Per quanto siamo a conoscenza, questo è il primo lavoro che associa i comportamenti degli utenti di digitazione alla produzione di informazioni personali ingannevoli.
Abbiamo raggiunto un'accuratezza complessiva del 76% nella classificazione di una singola risposta come veritiera o mendace.
Nella seconda parte di questa tesi, esaminiamo l'analisi del traffico di rete, in particolare in relazione all'interazione tra dispositivi mobili e utenti.
Poiché l'interazione genera un'enorme quantità di traffico di rete, proponiamo un framework innovativo, GolfEngine, per gestire e controllare l'impatto del comportamento degli utenti sulla rete facendo affidamento sulle tecniche di Software Defined Networking (SDN).
GolfEngine fornisce agli utenti uno strumento per costruire le loro applicazioni di sicurezza e offre una GUI (Graphical User Interface) per la gestione e il monitoraggio della rete.
In particolare, GolfEngine fornisce la funzione di controllare i conflitti di policy quando gli utenti progettano applicazioni di sicurezza e il meccanismo per controllare la ridondanza dell'archiviazione dei dati.
GolfEngine non solo previene le politiche di inserimento malizioso, ma impone anche la sicurezza sulla gestione della rete del traffico di rete.
I risultati della nostra simulazione sottolineano che GolfEngine fornisce prestazioni efficienti, sicure e robuste per la gestione del traffico di rete tramite SDN.
Nella terza e ultima parte di questa tesi, analizziamo gli aspetti di sicurezza dei dispositivi IoT dotati di batteria dal punto di vista del consumo energetico.
Sebbene la maggior parte del consumo di energia dei dispositivi IoT sia dovuta all'interazione dell'utente, c'è ancora una quantità significativa di energia consumata dalla comunicazione point-to-point e dalla gestione della rete IoT.
In questo scenario, un avversario può compromettere un dispositivo IoT e condurre un attacco Denial of Service (DoS) che punta a esaurire le batterie di altri dispositivi.
Pertanto, proponiamo EnergIoT, un nuovo metodo basato su politiche energetiche che prevengono tali attacchi e, allo stesso tempo, ottimizza la comunicazione tra utenti e dispositivi IoT ed estende la durata della rete.
EnergIoT si basa su un approccio di clustering gerarchico, basato su diversi rapporti di duty cycle, per massimizzare la durata della rete di dispositivi intelligenti con vincoli energetici.
I risultati mostrano che EnergIoT migliora la sicurezza e la durata della rete del 32%, rispetto agli approcci utilizzati in precedenza, senza sacrificare le prestazioni della rete (cioè, ritardo end-to-end).
14
Renucci, Franck. "Les ruptures du film interactif : la continuité de son histoire, le rythme de son énonciation, l'harmonie de sa composition." Toulon, 2003. http://www.theses.fr/2003TOUL0014.
Full textAbstract:
Le film interactif offre au spectateur un espace neuf dans lequel il peut intervenir. Chaque intervention crée une rupture au sein du film, rupture sur laquelle nous allons nous interroger. Comment procéder pour que l'action s'inscrive pendant le récit filmique et son énonciation en préservant la continuité de l'histoire, le rythme du film et l'harmonie de sa composition? Le film 1interactif est simultanément en rupture et en continuité avec un mouvement créatif né il y a plus d'un siècle. Du film traditionnel il conserve la trame, il en diffère par l'ouverture qu'il propose au spectateur. Notre étude se réfère aux théories véhiculées par le film traditionnel en abordant la continuité, le rythme et l'harmonie. Elle propose un type de rupture et prend appui sur des thèmes représentatifs du début du xxr siècle: le corps, l'altérité, la fragmentation des messages, la nécessaire transmission des histoires, leur communication<br>The interactive film presents the spectator with a new space in which he or she can play a part. This creates a break in the film which we will examine. How can the action fall into the story of the film and its enunciation while preserving the continuity of the story itself, the rhythm of the film and the harmony of its composition. The interactive film is both breaking and in continuity with a creative movement which was born more than a century ago. It has kept the framework of the traditional film but it differs from it by presenting the spectator with an opening. Our study refers to the theories conveyed by the traditional film when dealing with continuity, rhythm and harmony. It presents a type of break and is based on representative themes of the beginning of the twenty first century : body, otherness, breaking up of messages, necessary transfer and communication of stories
15
Abowd, Gregory Dominic. "Formal aspects of human-computer interaction." Thesis, University of Oxford, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.232812.
Full text
16
Zhang, Xiaozhong. "Some aspects of cement-aggregate interaction." Thesis, University of Oxford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.330017.
Full text
17
Wright, Stewart Andrew. "Aspects of unsteady fluid-structure interaction." Thesis, University of Cambridge, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.621939.
Full text
18
Savin, Deborah Jane. "Linear and nonlinear aspects of interactive boundary layer transition." Thesis, University College London (University of London), 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243306.
Full text
19
Hojatollah, Taleghani Azita. "The Interaction of Modality, Aspect and Negation in Persian." Diss., The University of Arizona, 2006. http://hdl.handle.net/10150/196082.
Full textAbstract:
This dissertation investigates the verbal system of Persian and is focused on the interaction of modality, tense, aspect and negation in this language. The dissertation challenges the idea that the syntactic structure maps on to the semantic interpretation or vice-versa.It is argued that modals are raising constructions in some languages (Wurmbrand 1999). Modals in Persian, which do not have subject-raising constructions, show different behavior. First, the root complex modals are generally syntactic control in Wurmbrand's (1998, 2001) proposal. There are just a few gaps with respect to dynamic root modals. Second, all epistemic modals which are either defective auxiliary modals or complex modals take default agreements and are pseudo-raising constructions. Third, the syntactic structures of modals show that there is no one-to-one correspondence between the structural positions and semantic interpretations of modals in Persian except in the auxiliary modal bâyad 'must'.The second contribution of this dissertation is that the class of restructuring verbs varies across languages. German semantic control verbs are instances of restructuring constructions (Wurmbrand 2001) while the only case of restructuring in Persian is the functional restructuring which appears in auxiliary modals such as bâyad 'must' and šâyad 'may' since they are mono-clausal and do not have a CP.This dissertation also investigates the structure of complex verbal forms in Persian. It is argued that Persian future tense is an instance of Serial Verb Constructions. However, progressives which are bi-clausal constructions are Aspectual Complex predicates.In the case of the structural analysis of the interaction of Persian modals and negation, this dissertation shows that the syntactic structure maps on the semantic interpretation or vice-versa. There are just a few gaps with respect to the scope possibilities of particular modals.The final contribution of this dissertation is related to the problem of the word order of NV elements and LV within complex predicates. This research provides three suggestions regarding the clausal complement position in complex predicates, and suggests that the vP remnant movement is the most reasonable one, since it is compatible with the recent trends of syntactic theories and suggested for some other languages (Mahajan 2003).
20
Roussillon, Pierre. "Interaction sol-structure et interaction site-ville : aspects fondamentaux et modélisation." Lyon, INSA, 2006. http://theses.insa-lyon.fr/publication/2006ISAL0008/these.pdf.
Full textAbstract:
La réévaluation sismique du bâti existant est un enjeu de sécurité majeur. Dans ce cadre a été effectuée une étude de l'interaction sol-structure (ISS) destinée à orienter l'auscultation du bâti et être intégrée dans un premier diagnostic de vulnérabilité. Elle s'inscrit dans une approche basée sur l'établissement de modèles simples de comportement dynamique issus de la confrontation du comportement supposé de la structure avec des données recueillies in situ par la méthode du bruit de fond, de l'excitation harmonique ou des chocs. Le choix d'une représentation simplifiée de l'ISS, autorisant un calcul analytique des fonctions d'impédances, a permis de déterminer, pour chacun des modèles les plus courants de structures, les paramètres adimensionnels essentiels qui gouvernent le phénomène puis d'estimer, selon les valeurs de ces paramètres, la nature et l'importance de l'effet de l'ISS sur les caractéristiques modales du système. Avec le même souci de privilégier les approches analytiques ou semi-numériques, des modèles basses fréquances ont été développés pour appréhender le phénomène d'interaction site-ville (ISV), autrement dit l'effet d'une urbanisation dense sur le champ d'onde sismique. Une première approche macroscopique, correspondant à une homogénéisation périodique des conditions aux limites en surface, a permis d'identifier le paramètre significatif du couplage mécanique entre le sol et la ville puis d'évaluer l'effet de l'interaction site-ville sur l'amplitude et la durée de la réponse sismique. Une deuxième approche, basée sur une formulation simplifiée et néanmoins réaliste du champ d'onde émis par chaque bâtiment, conduit à définir une couche limite pour décrire les interactions multiples entre sol et bâtiment. L'estimation distincte du mouvement en champ libre ou au niveau d'une fondation est ainsi rendue possible<br>We present a dimensional and parametric analysis of soil structure interaction effects, using simple representative models of structure and closed form impedances of cone model. The effect of a dense urban environment on seismic motions is investigated thanks to macroscopic analytical models: as a first approach, the effect of buildings is described by a mean impedance on the soil-city interface. This enables to identify a mechanical soil-city coupling parameter which governs the magnitude of the interaction, and to determine a characteristic time of the soil-city response. A second more refined model based on approximated wave fields radiated by each building lead to introduce a boundary layer to describe the multiple interactions effect. This work highlights the main mechanisms and governing parameters of single and multiple interaction phenomenon
21
Roussillon, Pierre Boutin Claude. "Interaction sol-structure et interaction site-ville aspects fondamentaux et modélisation /." Villeurbanne : Doc'INSA, 2007. http://docinsa.insa-lyon.fr/these/pont.php?id=roussillon.
Full text
22
Garcia, Cantu Ros Anselmo. "Thermodynamic and kinetic aspects of interaction networks." Doctoral thesis, Universite Libre de Bruxelles, 2007. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210420.
Full textAbstract:
In view of the fact that a same complex phenomenon can be approached by different conceptual frameworks, it is natural to inquire on the possibility to find connections between different types of quantities, such as topological, dynamical, statistical or thermodynamical, characterizing the same system. The present work is built on the idea that this line of approach can provide interesting insights on possible universal principles governing complex phenomena. In Chapter I we introduce concepts and tools of dynamical systems and thermodynamics as applied in macroscopic scale description as well as, for a later use, a number of selected representative models. In Chapter II we briefly present the elements of the theory of Markov processes describing a large class of stochastic process and also introduce some important concepts on the probabilistic description of deterministic systems. This chapter ends with a thermodynamic formulation accounting for the evolution of the entropy under the effect of stochastic fluctuations. In Chapter III, after introducing the main concepts and recent advances in network theory, we provide a connection between dynamical systems and network theory, which shows how universal structural properties of evolving networks can arise from deterministic dynamics. More specifically, we show explicitly the relation between the connectivity patterns of these networks and the indicators of the underlying dynamics, such as the local Lyapunov exponents. Our analysis is applied to representative models of chaotic maps, chaotic flows and is finally extended to stochastic processes. In Chapter IV we address the inverse problem, namely, processes whose dynamics is determined, in part, by the structure of the network in which they are embedded. In particular, we focus on systems of particles diffusing on a lattice and reacting instantaneously upon encountering each other. We study the role of the topology, the degree of synchronicity of motion and the reaction mechanism on the efficiency of the process. This lead us to identify a common generic mechanism responsible for the behavior of the efficiency, as a function of the control parameters. Finally, in Chapter V we study the connection between the topology and the thermodynamic properties of reaction networks, with focus on the entropy production and the system’s efficiency at nonequilibrium steady states. We also explore the connection between dynamic and thermodynamic properties of nonlinear feedbacks, as well as the response properties of reaction networks against both deterministic and stochastic external perturbations. We address networks of varying topologies, from regular lattices to complex structures./Le présent travail s’inscrit dans le domaine de recherche sur les systèmes complexes. Différentes approches, basées des systèmes dynamiques, de la thermodynamique des systèmes hors d’équilibre, de la physique statistique et, plus récemment, de la théorie des réseaux, sont combinés afin d’explorer des liens entre différentes types de grandeurs qui caractérisent certaines classes de comportements complexes. Dans le Chapitre I nous introduisons les principaux concepts et outils de systèmes dynamiques et de thermodynamique. Dans le Chapitre II nous présentons premièrement des éléments de la théorie de processus de Markov, ainsi que les concepts à la base de la description probabiliste des systèmes déterministes. Nous finissons le chapitre en proposant une formulation thermodynamique qui décrit l’évolution de l’entropie hors d’équilibre, soumis à l’influence de fluctuations stochastiques. Dans le Chapitre III nous introduisons les concepts de base en théorie des réseaux, ainsi qu’un résumé générale des progrès récents dans le domaine. Nous établissons ensuite une connexion entre la théorie des systèmes dynamiques et la théorie de réseaux. Celle-ci permet d’approfondir la compréhension des mécanismes responsables de l’émergence des propriétés structurelles dans des réseaux crées par des lois dynamiques déterministes. En particulier, nous mettons en évidence la relation entre des motifs de connectivité de ce type de réseaux et des indicateurs de la dynamique sous-jacente, tel que des exposant de Lyapounov locaux. Notre analyse est illustrée par des applications et des flots chaotiques et étendue à des processus stochastiques. Dans le Chapitre IV nous étudions le problème complémentaire, à savoir, celui de processus dont la dynamique est déterminée, en partie, par la structure du réseau dans lequel elle se déroule. Plus précisément, nous nous concentrons sur le cas de systèmes de particules réactives, diffusent au travers d’un réseau et réagissant instantanément lorsqu’un rencontre se produit entre elles. Nous étudions le rôle de la topologie, du degré de synchronicité des mouvements et aussi celui du mécanisme de réaction sur l’efficacité du processus. Dans les différents modèles étudiés, nous identifions un mécanisme générique commun, responsable du comportement de l’efficacité comme fonction des paramètres de contrôle. Enfin, dans le Chapitre V nous abordons la connexion entre la topologie et les propriétés thermodynamiques des réseaux de réactions, en analysant le comportement local et global de la production d’entropie et l’efficacité du système dans des état stationnaires de non-équilibre. Nous explorons aussi la connexion entre la dynamique et les propriétés de boucles de rétroaction non linéaires, ainsi que les propriétés de réponse des réseaux de réaction à des perturbations stochastiques et déterministes externes. Nous considérons le cas de réseaux à caractère régulier aussi bien que celui de réseaux complexes.<p><p><br>Doctorat en Sciences<br>info:eu-repo/semantics/nonPublished
23
Letts, C. A. "Aspects of linguistic interaction in speech therapy." Thesis, University of Reading, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.354087.
Full text
24
Hillairet, Matthieu. "Aspects interactifs de la mécanique des fluides." Lyon, École normale supérieure (sciences), 2005. http://www.theses.fr/2005ENSL0333.
Full text
25
DRUCE, CEDRIC HARALD. "MICROSCOPIC ASPECTS OF THE INTERACTING BOSON MODEL." Diss., The University of Arizona, 1985. http://hdl.handle.net/10150/188117.
Full textAbstract:
As a phenomenological tool, the Interacting Boson Model (IBM) has been useful and successful in correlating a wide variety of experimental data regarding the collective properties of many nuclei. The original version of the IBM did not distinguish between protons and neutrons and is referred to as the IBM-1. Microscopic investigation of the model revealed the need for explicit proton and neutron degrees of freedom and, thus, the IBM-2 was developed. The net result is a model, the IBM-2, motivated by microscopic theory, which is a boson description of collective features in medium-to-heavy mass even-even nuclei, and which is capable of distinguishing proton and neutron characteristics. A review is presented of the concept of using boson descriptions of many-fermion systems, and the IBM is introduced in a historical context. Next, the use of the IBM-2 as a phenomenological tool is investigated. The model is applied to the even zinc isotopes and the model is found to give a reasonable description of the experimental data. In the phenomenological calculations, the parameters of the IBM-2 Hamiltonian are adjusted until good agreement is obtained with the experimental data. To put the theoretical basis of the IBM-2 on firm ground, it is important to be able to calculate these parameters microscopically. A framework is developed in which such calculations can be performed for non-deformed nuclei. Results are presented for the mercury isotopes and discussed in detail. The calculated parameter values agree for the most part with the values obtained by phenomenological fit but with some exceptions. Similar calculations are performed for the platinum isotopes. The results for these isotopes are then related to the concpet of F-spin multiplets. When the Surface Delta Interaction (SDI) is used, several simplifications can be made in the IBM. In certain schematic situations, the parameters of the IBM-2 Hamiltonian can be related directly to the strength of the SDI. Several interesting results are obtained whose full implication will be investigated in the future. In conclusion, the IBM is discussed in relation with its application to other topics, both within and beyond the realms of nuclear physics. Several appendices are attached in which many algebraic details are shown explicitly. A brief summary is given of the computer codes that have been written in connection with this work.
26
Abusulaiman, Jumanah. "Modality in Makkan Arabic: The Interaction Between Modals and Aspect." Thesis, Université d'Ottawa / University of Ottawa, 2019. http://hdl.handle.net/10393/39930.
Full textAbstract:
This dissertation explores the interaction between modality and aspect in Makkan Arabic (MA). There is some consensus in the semantic literature regarding the treatment of modal expressions that may obtain various flavours, such as epistemic, deontic, bouletic, ability, necessity or teleological. These various modal flavours can be captured by a unified lexical entry, and are identified by contextual factors Kratzer (1977, 1981, 1991, 2012). There is some debate regarding the structural location of modal elements, some of which have been argued to be high (the case of epistemic modals) and others low (the case of root modals) (e.g. Cinque (1999)). The relative scope of modals has been subject of much recent work on modality, in particular in relation to their interaction with temporal categories such as aspect. This thesis investigates this topic on the basis of novel data from MA.
I observe that the flavour of modality can change depending on how it is inflected with different types of aspect in MA. This observation is in line of Hacquard; Hacquard; Hacquard’s (2006; 2009; 2014) proposal for French and Italian. In MA, when the root modal \gdr\ “can” is inflected with the perfective, the combination yields entailments that have come to be known in the literature as ‘actuality entailments’ (AEs) (see Bhatt (1999, 2006)). In this case, the speaker gives rise to the inference that the proposition expressed by the complement holds in the actual world (instead of merely in some possible but not actual world). My thesis integrates the case of \gdr\ to current cross-linguistic debates on this topic. Building on Hacquard’s work, I argue that AEs are generated when perfective aspect scopes over root modals. Perfective aspect links events to the actual world. Imperfective aspect scoping over the modal fails to generate AEs. My thesis ex-
ii tends the investigation of AEs to non-perfective cases. I argue that in addition to the contrast between perfective and imperfective, MA also distinguishes perfect aspect (e.g. an auxiliary plus a modal participle like gaadir). I suggest that the perfect in MA has several shapes, including the choice between two auxiliaries: kaan and saar. I link the different shapes of the perfect to the different types of interpretation identified by Portner (2000, 2003) for the English perfect. I suggest that in MA, different forms of the perfect are linked to distinct interpretations (which in English are grouped together under one form). In addition I show that, contrary to what has been argued by Hacquard for French, the perfect in MA can give rise to AEs in the case of the saar auxiliary. I develop an analysis of the saar perfect that is inspired by Hacquard’s proposal for perfective: in the case of saar, contrary to kaan, the perfect links the eventuality to the actual world. While the discussion of AEs in relation to the modal \gdr\ are linked to the proposal that aspect scopes over the modal, I also examine the case of a modal expression that scopes over aspect: qad “might”. I show that in spite of the fact that aspect scopes below the modal, the contrast between perfective and imperfective in the embedded clause can still give rise to differences in the generation of AEs. This case is interesting because much previous literature on AEs has focused on languages in which aspect scopes over the modal. MA qad provides an example where the modal scopes over aspect, and it is still the case that AEs appear to be generated. In spite of the structural differences with \gdr\, my analysis of qad builds on Hacquard’s proposal for AEs with the perfective, appealing to her proposal for the ‘preservation of event description’ to account for the fact that properties of eventualities can remain stable across worlds.
The structure of the thesis is as follows: Chapter 1 provides an introduction to the empirical domain, situating aspect and modality in the description of MA; in addition it
iii provides an introduction to key theoretical concepts to be used in later chapters. Chapter 2 discusses AEs in the case of the root modal \gdr\, comparing perfective and imperfective. Chapter 3 extends the discussion of the modal to examples with the perfect, distinguishing between the kaan- and saar- perfects. Chapter 4 investigates the behaviour of qad and its interaction with perfective and imperfective complements. Chapter 5 offers a brief summary and concluding remarks.
27
Baruch, Clarisse. "Etude d'une interaction binaurale : l'adaptation induite de la sonie." Paris 5, 1987. http://www.theses.fr/1987PA05H036.
Full textAbstract:
L'adaptation induite contralaterale de la sonie (aic) est une diminution progressive de l'intensite subjective qui se produit pour un son monaural continu lorsqu'il est accompagne par un son intermittent contralateral. Les objectifs de cette these sont l'etude des principales caracteristiques de l'aic ainsi que la recherche de ses mecanismes. Apres un rappel des principaux aspects des interactions binaurales (localisation et lateralisation, masquage, adaptation induite), les connaissances actuelles concernant les differentes formes de l'adaptation de la sonie sont exposees. Les chapitres suivants sont consacres a la presentation d'une serie d'experiences de psychoacoustique dans lesquelles des methodes d'estimation directe sont utilisees pour mesurer la sonie ou la lateralisation. Les principaux resultats sont: 1) l'aic augmente en fonction de la duree du son inducteur, 2) l'aic est maximale lorsque le son inducteur et le son test ont des frequences identiques et diminue en fonction de leur ecart de frequence, 3) elle depend assez etroitement de la lateralisation de l'image du son inducteur, 4) les sujets musiciens presentent moins d'aic que les non-musiciens, 5)l'aic mesuree chez les enfants non-musiciens ages de 9 a 15 ans ne differe pas de celle des adultes non-musiciens. Ces donnees etayent l'hypothese d'un lien entre les mecanismes responsables de l'aic et de la lateralisation. La particularite observee chez les musiciens serait acquise et pourrait consister en une capacite de fusion binaurale limitee a une gamme de frequences reduite. Finalement, l'existence de l'aic montre qu'un nouveau son provoque une diminution durable de l'intensite subjective des sons deja presents, en particulier de ceux qui ont une frequence proche de la sienne. Son mecanisme parait s'exercer a partir d'une organisation centrale du systeme auditif utilisee egalement par les processus de la fusion binaurale, du masquage central et de la lateralisation<br>Contralaterally induced loudness adaptation (cia) is a progressive decrease in the subjective intensity of a continuous monaural tone when accompanied by an intermittent contralateral tone. This thesis studies both the principal characteristics of cia as well as the mechanisms involved. The main binaural interactions (localization and lateralization, masking, induced adaptation) and the different forms of loudness adaptation are presented. The following chapters are devoted to a series of psychoacoustical experiments which use the direct magnitude estimations methods to measure adaptation or lateralization. The more important results are: 1) cia increases as a function of the inducer's duration, 2)cia is maximum when the inducer and test tones have the same frequency and decreases as a function of their frequency difference, 3) the degree of adaptation depends to a great extent on the lateralization of the inducer's image, 4)musicians show less cia than non-musicians, 5) the degree of cia in children with no musical training, aged 9 to 15, does not differ from that of adults without musical training. These results support the hypothesis of a relation between the mechanisms responsible for cia and those for lateralization. The special characteristic of musicians is a learned capacity related to binaural fusion in a reduced frequency range. Finally, the existence of cia shows that a new sound creates a lasting decrease in the subjective intensity of sounds already presented, specially those which are close in frequency. Its mechanism seems to stem from the central organization of the auditory system, as do the processes of binaural fusion, central masking and lateralization
28
Piccolo, Lara Schibelsky Godoy 1977. "Motivational aspects in the design of technology for social changes = Aspectos motivacionais no design de tecnologia para mudanças sociais." [s.n.], 2015. http://repositorio.unicamp.br/jspui/handle/REPOSIP/275540.
Full textAbstract:
Orientador: Maria Cecília Calani Baranauskas<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Computação<br>Made available in DSpace on 2018-08-26T21:24:50Z (GMT). No. of bitstreams: 1
Piccolo_LaraSchibelskyGodoy_D.pdf: 12553498 bytes, checksum: 5ee94e1c70ca11d1475031685986a445 (MD5)
Previous issue date: 2015<br>Resumo: Conectando pessoas e presente em todos os aspectos da vida, quando projetadas para este fim, as tecnologias têm potencial de influenciar a forma com que pessoas em um grupo social percebem e se relacionam com as coisas no ambiente. Este estudo de doutorado em Interação Humano-Computador (IHC) investiga como elementos motivacionais da Psicologia podem ser aplicados para informar o design, explo- rando esse potencial da tecnologia em promover mudanças sociais. O estudo é instanciado no domínio de consumo de energia elétrica, lidando com o desafio contemporâneo de cons- cientizar a sociedade dos limites naturais do planeta no que diz respeito ao uso de recursos naturais. Informar o design com aspectos motivacionais é uma abordagem recente em IHC. Quando encontrada na literatura, comumente tem foco em aspectos individuais e intrín- secos da motivação. Contudo, como argumentado nessa pesquisa, o contexto sociocultural evidencia a importância de considerar também os fatores externos que motivam as pessoas a se engajarem com uma tecnologia e com uma determinada questão social. Por considerar tanto fontes intrínsecas quanto extrínsecas de motivação, a Teoria da Autodeterminação é então considerada o principal referencial teórico da Psicologia nessa investigação, e a Semiótica Organizacional é a base metodológica para analisar os elemen- tos socioculturais que influenciam a motivação extrínseca. A análise situada dos dados socioculturais por uma perspectiva motivacional levou ao design da Tecnologia Socialmente Informada para Eco-Feedback de Energia (sigla SEET, em inglês), uma arquitetura que tem por objetivo estabelecer um novo padrão de com- portamento, ou uma nova maneira de perceber o consumo de energia coletivamente. O SEET é composto por um sistema interativo que promove colaboração, e pela Árvore da Energia, um dispositivo de feedback tangível para locais onde há encontro de pessoas. O SEET é avaliado em dois cenários complementares: uma Escola de Ensino Funda- mental no Brasil, onde os dados socioculturais foram coletados, analisados e aplicados para informar o design; e no contexto de um departamento de uma universidade no Reino Unido. Aspectos motivacionais da arquitetura do SEET são então analisadas, assim como o impacto dessa tecnologia ao desencadear as esperadas mudanças sociais<br>Abstract: By connecting people and being present in almost all aspects of life, when properly de- signed for that, technology can potentially influence the way people in a social group perceive and relate with things in their environment. This PhD study in the Human-Computer Interaction (HCI) field investigates how motivational elements from Psychology can be applied to inform the design aiming at exploring this potential of technology for promoting a social change. The study is in- stantiated in the energy consumption domain, coping with the contemporary challenge of raising awareness among the society of the planet¿s natural resources usage and limits. Informing the design with motivational aspects is a recent approach in HCI. When found in literature, it is mostly focused on individual and intrinsic aspects of motivation. However, as argued in this research, the sociocultural context evidences the importance of considering also the external factors that motivate people to be engaged with technology and the social issue. By taking into account both intrinsic and extrinsic sources of motivation, the Self- Determination Theory is then considered the main theoretical background from Psychol- ogy in this investigation, and the Organisational Semiotics the methodological basis to analyse sociocultural elements that influence extrinsic motivation. The situated analysis of sociocultural data with motivational lenses has led to the de- sign of a Socially-informed Energy Eco-feedback Technology (SEET), an architecture that aims at establishing a "new pattern of behaviour", or a new way of perceiving collective energy consumption. The SEET is composed by an interactive system that promotes collaboration and The Energy Tree, a tangible and public feedback device for gathering places. The SEET is evaluated in two complementary scenarios: an elementary school in Brazil, where the sociocultural data was collected, analysed and applied to inform design; and in the context of an university department in the United Kingdom. Motivational as- pects of the SEET architecture are then analysed, as well as the impact of this technology to trigger the desired social change<br>Doutorado<br>Ciência da Computação<br>Doutora em Ciência da Computação
29
Drugge, Mikael. "Interaction aspects of wearable computing for human communication." Doctoral thesis, Luleå : Media Technology Research Group, Luleå University of Technology, 2006. http://epubl.ltu.se/1402-1544/2006/60/.
Full text
30
Weerasekara, Lalinda. "Pipe-soil interaction aspects in buried extensible pipes." Thesis, University of British Columbia, 2011. http://hdl.handle.net/2429/38050.
Full textAbstract:
The performance of buried pipelines in areas subjected to permanent ground displacements is an important engineering consideration in the gas distribution industry, since the failure of such systems poses a risk to public and property safety. Although, the ground movements and its variations over time can be detected and mapped with reasonable confidence, these data are of little use due to a lack of reliable models to correlate such displacements to the condition of the buried pipe. The objective of this thesis is to develop methods to estimate the pipe performance based on the measured ground displacement.
An analytical method was developed to estimate the pipe performance when the pipe is subjected to tensile loading caused by the relative ground movements occurring along the pipe axis. As a part of the derivation, a modified interface friction model was developed considering the increase in friction due to constrained dilation of the soil, and the impact of mean effective stress on soil dilation. This interface friction model was combined with a nonlinear pipe stress–strain model to derive an analytical solution to represent the performance of the pipe. Using the proposed model, axial force, strain, and mobilized frictional length along the pipe can be obtained for a measured ground displacement can be obtained. Large-scale field pipe pullout tests were performed to verify the results of the proposed analytical model, in which good agreements were observed for tests conducted at different soil/burial conditions, displacement rates and pipe properties. Considering the similarities in the axial pullout mechanism, the analytical model was extended to explain the pullout response of geotextiles buried in reinforced soil structures. In this derivation, a new interface friction model was developed for planar members by considering the changes in normal stress due to constrained soil dilation.
Another analytical model was derived for the case of a pipe that is subjected to combined loading from axial tension and bending when the initial soil loading is acting perpendicular to the pipe axis. With the direct account of the axial tensile force development, more realistic pipe performance behaviors were obtained as compared to the results obtained from traditional numerical formulations.
31
Pyper, Graham. "Aspects of laser tissue interaction in photodynamic therapy." Thesis, University of Hull, 1997. http://hydra.hull.ac.uk/resources/hull:11088.
Full text
32
Al-Marsumi, Mujbil D. "Aspects of an interactive framework for technology assessment and development planning." Thesis, Aston University, 1985. http://publications.aston.ac.uk/11847/.
Full text
33
Boucaud, Fabien. "Un agent touchant : modélisation du toucher social dans les interactions humain-agent en environnement immersif." Thesis, Compiègne, 2021. http://www.theses.fr/2021COMP2666.
Full textAbstract:
Malgré la puissance de nos technologies de communication actuelles pour maintenir du contact social dans des situations extrêmes, elles restent insuffisantes pour totalement combler les sentiments de solitude et d'isolement. Le toucher social, est essentiel au bien-être humain, nous permet de développer et raffermir nos liens relationnels et est un puissant canal de communication des émotions. Le présent travail de thèse s'intéresse à la façon dont on peut munir des agents artificiels de capacités de toucher social. Qu'il s'agisse de robots ou de personnages virtuels, ces nouvelles entités sociales sont déjà équipées de nombreuses modalités d'interaction (paroles, gestes, expressions faciales, etc.), et munir ces nouveaux types d’entités sociales de capacités de toucher pourrait améliorer encore leurs capacités émotionnelles et relationnelles. Plus particulièrement, notre principale question de recherche est de déterminer quand et comment toucher u and allowsn humain de manière utile, autonome et respectueuse. A cet effet, nous proposons une structure théorique et une implémentation fonctionnelle d'un agent touchant capable d'interagir dynamiquement avec un humain en temps réel, au sein d'un environnement immersif. En particulier, nous décrivons un module de perception des comportements de l'humain, un modèle de décision qui prenne en compte la cohérence et l'acceptabilité du toucher en contexte, et une interface haptique SOFTLY qui puisse être utilisée en immersion dans un environnement virtuel. Les évaluations de ces développements mettent en lumière les capacités prometteuses de ce framework, ainsi que ses limites actuelles et perspectives d'amélioration pour des travaux futurs<br>Despite the current abilities of our communication technologies, they remain unable to completely counterbalance feelings of isolation and loneliness. Social touch is essential to human well-being and allows us to develop and strenghten our relationships. It is also powerful channel of emotional communication. This thesis work is aimed at endowing artificial agents with social touch abilities. Whether they are robotic or virtual artificial agents represent new kinds of social entities and are already equipped with many interactional modalities (speech, gestures, facial expressions, etc.). Endowing them with touching abilities could further enhance their abilities to communicate emotions and to bond with humans. More specifically, our main research question is to determine when and how to touch a human is meaningful, autonomous and respectful way. To answer this question, we propose a theoretical structure and a functional implementation of a touching agent, able to dynamically interact with a human in real-time in an immersive environment. We describe a perception module to detect the human’s behaviour, a decision model able to take coherence and acceptability of touch into account, and a haptic interface (SOFTLY) that can be used in the immersive setup to generate haptic feedback. Evaluations of this framework are discussed and hightlight that its abilities are promising, althought there are still clear avenues of improvement for the model
34
Fowler, Julili Southerland. "The interaction of electronic space with regional development." Thesis, Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/30489.
Full text
35
Lortie, Catherine. "Interactions en environnements virtuels: aspects multimodaux." Thesis, Université Laval, 2012. http://www.theses.ulaval.ca/2012/29431/29431.pdf.
Full text
36
Merazga, Yamina. "Aspects of the interaction between cisplatin and renal glutathione." Thesis, Brunel University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.235899.
Full text
37
Yourdkhani, Mostafa. "Aspects of nanoparticles dispersion and interaction in polymer nanocomposites." Thesis, McGill University, 2014. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=123090.
Full textAbstract:
Polymer nanocomposites have attracted a great deal of attention during the past few decades. Benefiting from the nanoscale geometry, immense surface-to-volume ratio, and exceptional chemical and physical properties, nanoparticles are theoretically expected to enhance the performance of polymer systems. In practice, the preparation of polymer nanocomposites brings its own challenges. To achieve the best reinforcing effect, nanoparticles should be uniformly dispersed within the polymer matrix, and effectively interact with the polymer chains. The strong attractive forces that exist at molecular levels between the nanoparticles through their extensive interfacial area make it very challenging to overcome these issues. Furthermore, the presence of nanoparticles in the polymer matrix significantly alters the processing condition of the polymer system. Therefore, the main objective of this thesis is to investigate the dispersion and interfacial interactions in polymer nanocomposites. To avoid the uncertainties associated with the visual and qualitative analysis of dispersion, which is commonly used by the researchers, a robust algorithm was developed to automatically quantify the state of dispersion in optical and electron micrographs. Several experiments were carried out to perceive the influence of surface modification of nanoparticles on the performance of polymer nanocomposites. Two different material systems were examined: organoclay-modified polylactide (PLA), and carbon nanotube (CNT)-modified epoxy. It was shown that the proper surface modification of nanoparticles could facilitate the dispersion, and consequently, enhance the mechanical and physical performance of the host polymer. To understand the effect of processing conditions on the dispersion quality of nanocomposites, a systematic study on the dispersion stability of CNT-modified epoxy resin was performed. It was found out that at elevated temperatures, CNTs show little affinity for the resin; thereby, any factors that promote the possibility of contacts between the nanotubes may result in their reagglomeration. Consequently, during processing, the dispersion stability is highly influenced with the flow-induced mobility of nanotubes resulting from external shear forces or a change in the viscosity. The insights gained throughout this investigation can be used to optimize the processing conditions and manufacturing methods for maintaining a stable dispersion during processing, and consequently obtaining nanocomposites with enhanced performance.<br>Les polymères nano-renforcés ont attiré beaucoup d'attention au cours des dernières décennies. Profitant de la géométrie à l'échelle nanométrique, immense rapport surface/volume, et les propriétés chimiques et physiques exceptionnelles, les nanoparticules améliorent en théorie la performance des systèmes de polymères. Dans la pratique, la préparation de polymères nano-renforcés comporte ses propres défis. Pour obtenir le meilleur renforcement possible, les nanoparticules doivent être uniformément dispersées dans la matrice, afin d'interagir efficacement avec les chaînes du polymère. Les forces d'attraction moléculaires qui existent à l'interface entre différentes nanoparticules rendent ces problèmes difficiles à surmonter. En outre, la présence de nanoparticules dans la matrice modifie de manière significative les procédés de fabrication de ce système polymère. Par conséquent, l'objectif principal de cette thèse est d'étudier la dispersion et les interactions interfaciales dans les polymères nano-renforcés. Pour éviter les incertitudes liées à l'analyse visuelle et qualitative de la dispersion, utilisée couramment par les chercheurs, un algorithme robuste a été développé pour quantifier automatiquement l'état de dispersion dans les micrographies optiques et électroniques. Plusieurs expériences ont été réalisées pour comprendre l'influence de la modification de surface des nanoparticules sur la performance des polymères nano-renforcés. Deux matériaux différents ont été examinés: un polylactide (PLA) renforcé avec des organo-argiles, et un époxy renforcé par des nanotubes de carbone (CNT). Il a été démontré qu'une modification appropriée de la surface des nanoparticules pourrait faciliter la dispersion, et par conséquent pourrait améliorer les performances mécaniques et physiques du matériau. Pour comprendre l'effet des procédés de fabrication sur la dispersion des polymères nano-renforcés, une étude systématique sur la stabilité de la dispersion de résine époxyde renforcée par des CNT a été effectuée. Il a été constaté que, à des températures élevées, les nanotubes de carbone présentent peu d'affinité avec la résine, et de ce fait, tous les facteurs qui favorisent la possibilité de contacts entre nanotubes peuvent conduire à leur ré-agglomération. Par conséquent, pendant le procédé de fabrication, la stabilité de la dispersion est fortement influencée par la mobilité induite par l'écoulement de nanotubes résultant de forces de cisaillement externes ou un changement de la viscosité. Les connaissances acquises tout au long de cette enquête peuvent être utilisés pour optimiser les procédés et les méthodes de fabrication afin de maintenir une dispersion stable tout au long de la fabrication, et obtenir ainsi un polymère nano-renforcé avec des performances accrues.
38
Joosten, Martina Maria. "Aspects of interface modelling in fluid-structure interaction problems." Thesis, Swansea University, 2011. https://cronfa.swan.ac.uk/Record/cronfa42211.
Full textAbstract:
Different aspects of computational fluid-structure interaction are considered in this work. A brief introduction to fluid dynamics, structural mechanics and the finite element method is given, followed by an overview of interface modelling and the different solution strategies available for the coupling of the domains. A number of time integration schemes are explained in detail with a focus on their stability and accuracy properties. A model problem is introduced to investigate the situation where different domains of a coupled problem are solved with different time integration schemes. It is shown that appropriate interpolation of the solution variables at the interface is required to maintain the stability and accuracy properties of the individual time integration schemes. The Gauss-Seidel solution strategy is analysed in detail. Stability limitations are investigated and are shown to be related to the mass ratio between the different domains. Different relaxation strategies are introduced to improve the convergence behaviour. Finally, a number of 2D fluid-structure interaction examples are considered, in order to compare the different solution strategies.
39
YADAV, MONIKA. "SOME ASPECTS OF LASER-PLASMA INTERACTION FOR ELECTRON ACCELERATION." Thesis, DELHI TECHNOLOGICAL UNIVERSITY, 2021. http://dspace.dtu.ac.in:8080/jspui/handle/repository/18736.
Full textAbstract:
This thesis focuses on investigation of laser-plasma interaction relevant to
electron acceleration to high energies. This work explores various ideas for
producing an energetic and good quality electron beam from laser wakefield
acceleration (LWFA) in plasmas. In LWFA, a high-intensity laser pulse excites a
plasma wave, which propagates behind the laser pulse with the equal speed of the
laser group velocity. For efficient accelerations, electrons should be injected into
the wakefield. Thus, the wakefield evolution and electron injection both are quite
important aspects in LWFA. In order to draw the maximum output from the
wakefield structure, which is called wakefield bubble in case of high-intensity
laser, the basic understanding behind the factors controlling electron injection into
wake structure must be very clear. This thesis work focus toward controlling the
electron beam quality by understanding the factors affecting bubble wake
evolution. The dependence of beam energy and the beam quality on the shape of
the bubble is the main motivation behind this investigation. Particle-in-cell (PIC)
simulations are conducted to study the bubble dynamics for optimum electron
accelerations. A good quality electron bunch with pC to nC charge are obtained
with current laser-plasma parameters. During LWFA, generation of wakefield
results in variation of refractive index that may distort the laser pulse shape. Thus,
the laser pulse shape may be a significant factor to control the electron beam
parameters in LWFA. Various shapes such as q-Gaussian laser pulse and
flattened-Gaussian laser pulse have been taken into account to observe the laser
pulse effect on electron beam parameters in LWFA. The implications of laser
pulse shape was shown to control and optimize the bunch charge as well as the
bunch energy. Our insights into the acceleration process might be quite
supportive in the future optimization of electron beam stability and quality. The
electron bunch generated by LWFA could be used to obtain femtosecond x-rays
and subsequent applications in medical sciences.
40
Bossi-Rida, Joumana. "Interaction du diabète avec le travail." Montpellier 1, 1997. http://www.theses.fr/1997MON11142.
Full text
41
Hafiz, Amir. "Sustainable Interaction : Putting the social aspect of Sustainable Development on the agenda." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-193979.
Full textAbstract:
In a world of development and scarce resources sustainable development has been presented as an approach of dealing with our issues of welfare. Economic, environmental and social aspects are incorporated in the approach in order to solve the problems of today. While sustainable development is pervaded in policies and planning of nations and communities, the three aspects of it have all specific definitions which are to be applied, some aspects are well defined whilst others are not yet fully determined. The purpose of this qualitative study is to highlight the social aspect of sustainable development. The social sustainability is assessed by investigating how a municipality in Sweden meets the variables of social sustainability established by the Swedish government. It investigates the structure plans of a community south of Stockholm, Haninge Municipality. It seeks to understand how the municipality implements social sustainability in practice to solve the issues of the alienated residential area Jordbro. By using a method of interpretation of texts in form of governmental documents of social sustainability, municipal structure plans together with incorporated interviews with locals and an internship at the municipality house of Haninge, the study gives a comprehensive understanding of social sustainability in Stockholm and issues which the municipality is to deal with. It indicates that social sustainability is taking a smaller role in the structure planning documents of the municipality, and it also indicates a lack of interaction and incorporation of locals. Furthermore the study suggests some solutions to the problems of social sustainability.
42
Uesaka, Miwako. "The "te-i(ru)" construction in Japanese : interaction between aspect and syntax." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=23855.
Full textAbstract:
This thesis is a study of one aspectual construction, the "te-i(ru)" construction, in Japanese. This construction posed a serious problem for the study of Aspect in Semantics. That is, it seems to allow two contradictory interpretations: progressive and perfect of result. We argue that the the two distinct readings are the result of the syntactic interaction of the morpheme "te", the aspectual predicate, and the aspectual auxiliary verb "i-(ru)". Adopting the framework proposed by Travis (1991, 1994), we argue that the semantic operators, "BECOME" and "CAUSE", originally proposed by Dowty (1979), are actually generated in Syntax as the aspectual predicate, Asp$ sp0$, and the higher V$ sp0$ of a double VP structure, respectively. The event argument (Higginbotham 1985) is, we claim, subcategorized for and $ theta$-marked by the aspectual predicate. Further, we demonstrate that a morpheme "te" is an imperfective marker, and show that the two readings, progressive type and perfect type, arise because this morpheme is generated in the higher aspectual category, EP, in Japanese. The auxiliary verb "i-(ru)" connects the embedded event noted by EP to an interval time through the control of the event argument. Our analysis supports the hypothesis that Aspect is a syntactic category.
43
Salome, Margaret. "On the interaction between aspect and arbitrary null objects : evidence from Spanish /." Thesis, Connect to this title online; UW restricted, 1996. http://hdl.handle.net/1773/8427.
Full text
44
Gao, Yuan. "Gene environment interaction in formation of delinquent peer." Thesis, University of Macau, 2018. http://umaclib3.umac.mo/record=b3953654.
Full text
45
Dow, Steven P. "Understanding user engagement in immersive and interactive stories." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26468.
Full textAbstract:
Thesis (Ph.D)--Computing, Georgia Institute of Technology, 2009.<br>Committee Chair: MacIntyre, Blair; Committee Member: Bolter, Jay; Committee Member: Guzdial, Mark; Committee Member: Mateas, Michael; Committee Member: Mynatt, Elizabeth. Part of the SMARTech Electronic Thesis and Dissertation Collection.
46
Cueva, Diego Ruivo. "Fusão computacional de observações afetivas." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/3/3152/tde-06072014-222834/.
Full textAbstract:
Este trabalho tem como objetivo discutir o estado da arte e propor melhorias em uma área de grande potencial e de crescimento recente na computação: a análise do estado emocional do usuário de um sistema de informação e a aplicação dessa observação em cenários ricos de interação homem-máquina. Para foco em um escopo tratável, escolheu-se o estudo das técnicas atuais de captação afetiva através de três sensores diferentes (expressões faciais, expressões vocais e contexto semântico) e de como sua combinação poderia resultar em dados mais robustos sobre o estado emocional do usuário, em uma aplicação conhecida como Fusão Multimodal. Nesse sentido, o trabalho levanta não apenas a bibliografia recente sobre o estado da arte da aquisição de dados nas três áreas e em fusão, mas também aplica algumas das ferramentas existentes (tanto comerciais como abertas) para melhor compreensão do nível atual da tecnologia acessível ao público acadêmico. Dada a inexistência de uma aplicação facilmente disponível para análise de emoções no contexto semântico, desenvolveu-se uma ferramenta dedicada à pesquisa, nomeada emoCrawler, a qual utiliza redes sociais para avaliação do caráter emocional que palavras indiretamente podem acarretar em uma discussão. O emoCrawler busca avaliar as emoções evocadas em usuários de Twitter e as compara com um dicionário emocional conhecido, baseado em contribuições acadêmicas diversas, gerando um resultado quantitativo útil ao escopo do trabalho. Por fim, o trabalho lançou mão da ferramenta emoCrawler e das outras ferramentas selecionadas para análise de expressões faciais e vocais na criação de um sistema de fusão sensorial que aumente a confiabilidade global da emoção detectada. Para isso, inicialmente um corpus de áudio e vídeo disponível foi tratado e reduzido para o escopo da pesquisa. Em seguida, diferentes técnicas de fusão baseadas em algoritmos de classificação foram aplicadas (redes neurais, Naive Bayes e Support Vector Machine), com abordagens distintas de treinamento para busca de resultados melhores dos que os encontrados nas aplicações unimodais. Os resultados verificados de fato indicam para uma melhor taxa de detecção quando é aplicado o algoritmo de fusão. Nesse processo, a presença de dados fornecidos pelo emoCrawler parece ter contribuído positivamente.<br>This work aims at discussing the state of the art and proposing improvements in a field of great potential and recent growth in computing: the analysis of the emotional state of the user of an information system and the application of such observations in rich scenarios of human-machine interaction. In a tractable scope of research, this work evaluates the current techniques of affective observation applied on three different inputs (facial expressions, speech features and semantic context) and comprehends how their combination can result in more robust affirmations on the actual emotional status of the user an application called Multimodal Fusion. In this sense, the work presents not only the recent literature on the state of the art in data acquisition in the three aforementioned areas and in fusion, but also applies some of the existing tools (both commercial and open) for a better understanding of the current level of technology available to the academic audience. Given the lack of an application readily available for the analysis of semantic context in emotions, a dedicated piece of software to the research was developed, entitled emoCrawler, which uses social networks as a means to evaluate the emotional signature that words may leave in a discussion. emoCrawler aims at evaluating emotions evoked in Twitter users and comparing them with an emotion dictionary built around academic contributions, generating a quantitative result useful to this research. Finally, this work made use of emoCrawler and the other selected tools for both facial and speech expressions in the creation of a sensor fusion system to enhance the global reliability of the affective detection. To achieve this, an audiovisual database was initially processed and condensed. Then, different fusion techniques based on classification algorithms with distinct learning approaches (neural networks, naïve Bayes and Support Vector Machine) were applied in the pursuit of better outcomes than the unimodal applications. The final results indeed point to a better rate of detection when fusion algorithms are applied. In this process, the data provided by emoCrawler seems to have contributed positively.
47
Arora, Sandeep. "An evolutionary architecture : adapted, interactive, and effectively integrated design." Virtual Press, 2007. http://liblink.bsu.edu/uhtbin/catkey/1379439.
Full textAbstract:
Bio-climatic design is essential to all architecture because buildings consume large amount of energy to maintain comfortable indoor environments. To achieve this goal, we need a model that can be a source of inspiration as well as knowledge to motivate and help architects in creating such architecture.Many designers have taken inspiration from nature and explored various ways of mimicking its models. In this creative project, I looked at various entities in nature to understand how they acclimatize to respective climatic settings. Based on several observations, I extracted Nature's design principles and applied those to the bio-climatic design of buildings. These principles are helpful in developing a general understanding for making our buildings responsive to climate.<br>Department of Architecture
48
Rallapalli, P. M. "Interactive locus-specific databases and evolutionary aspects of the mutations in coagulation proteins." Thesis, University College London (University of London), 2014. http://discovery.ucl.ac.uk/1458877/.
Full textAbstract:
Blood coagulation occurs through a cascade of enzymes and cofactors that produces a fibrin clot, while otherwise maintaining haemostasis. The 11 human coagulation factors (FG, FII-FXIII) are associated with thousands of mutations. Variations caused by these mutations are the basis for evolutionary consequences and several of these mutations are also associated with clinically diagnosable bleeding disorders. Trailing the success of sequencing and diagnostic methods, increasing numbers of mutations are being compiled in order to present a more detailed patient-specific description of the disease. This thesis describes an interactive locus-specific database system in which the mutations in patients with haemophilia (A and B) are presented in searchable formats, and viewed in comparisons against protein structures and sequence alignments. The approach used within these databases are set up in a way that they could be extended and combined with a database management system to design a mutation database for the other bleeding disorders of the coagulation system. Our main focus was to correlate the protein sequence and structure with their functional interactions, also keeping in mind the evolutionary selective pressure at the mutation sites. We evaluated the strength of selective pressures on the 11 coagulation factors during vertebrate evolution, and compared these with human mutations in FVIII, FIX and FXI. We have showed that the coagulation system in vertebrates was under strong selective pressures, perhaps to adapt against blood-invading pathogens. It was concluded that when a site was under positive selection, it was less likely to be associated with disease-causing mutations. In contrast, sites under negative selection were more likely to be associated with disease-causing mutations and be destabilizing. The scientific design of the databases with improved understanding of evolutionary changes will lead to a more comprehensive comparative understanding of the genetic factors that influence bleeding risk thus providing optimised genetic services.
49
Vanderpooten, Daniel. "L'approche interactive dans l'aide multicritère à la décision : aspects conceptuels, méthodologiques et informatiques." Paris 9, 1990. https://portail.bu.dauphine.fr/fileviewer/index.php?doc=1990PA090007.
Full textAbstract:
L'évolution des sciences de la décision vers une reconnaissance accrue du rôle du décideur est particulièrement sensible dans le domaine de l'analyse multicritère. Le prolongement d'une telle tendance conduit naturellement à l'idée séduisante de l'intégration du décideur comme élément actif du processus d'aide à la décision. C'est ainsi qu'une nouvelle branche de l'aide multicritère à la décision - l'approche interactive - s'est développée au cours des deux dernières décennies. La multitude de procédures multicritères interactives présentées dans la littérature, le nombre croissant d'applications réelles ainsi même que l'émergence de prises de position critiques traduisent un succès que les tendances actuelles ne semblent guère démentir. S'il parait donc légitime de distinguer une approche spécifique, il est plus difficile de la caractériser dans la mesure où elle regroupe des procédures fondées sur des démarches et des concepts fort variés. L'objet de ce travail est donc de définir un cadre général permettant de mieux caractériser l'approche interactive, de resituer les méthodes jusqu'ici proposées, mais aussi de guider la conception de nouvelles procédures. Les aspects mathématiques, la manière d'intégrer l'information préférentielle progressivement émise par le décideur, la façon de régir l'interaction homme-machine, les considérations liées à l'implémentation informatique, tels sont par ailleurs les points principalement étudiés permettant de dégager certaines exigences ou lignes directrices. C'est sur ces bases qu'une nouvelle procédure a été élaborée, implémentée puis expérimentée
50
Kulpa, Richard James Guy. "Adaptation interactive et performante des mouvements d'humanoïdes synthétiques :aspects cinématique, cinétique et dynamique." Rennes, INSA, 2005. http://www.theses.fr/2005ISAR0014.
Full textAbstract:
De nos jours, la capture de mouvements est une technique très répandue pour obtenir des animations réalistes d'humanoïdes synthétiques. Cependant, ces mouvements doivent être adaptés à de nouvelles contraintes comme la morphologie et l'environnement du personnage afin de pouvoir les utiliser dans toutes les situations. Le problème est alors de les modifier tout en préservant leurs propriétés intrinsèques. Nous proposons donc une méthode d'adaptation de ces mouvements à de nouvelles contraintes en vérifiant les aspects cinématique, cinétique et dynamique. Ces travaux répondent aux problèmes suivants : trouver une posture réaliste parmi celles qui vérifient les contraintes, contrôler la position du centre de masse et adapter les postures en conséquence, enfin être capable d'appliquer ces méthodes sur de nombreux personnages en temps-réel. Ce travail peut être utilisé dans les applications interactives par exemple dans des domaines tels que l'éducation, l'audiovisuel et le sport<br>Nowadays, motion capture is widely used to animate synthetic human-like figures. However, the motion must be adapted to new constraints, such as the morphology and the environment of the synthetic character. Indeed, adaptation prevents from capturing motions for all the possible situations. However, the problem consists in modifying a motion while preserving its intrinsic properties. We propose a method that adapts a motion to new constraints while taking kinematics, kinetics and dynamics into account. This thesis addresses the following problems: finding a realistic solution among all the possible postures that verify the above constraints, controlling the position the center of mass and calculating a compatible posture, and being able to handle many characters in real-time with those methods. This work can consequently be used in video games and virtual reality that require interactions. The main applications are education, entertainment and sports