To see the other types of publications on this topic, follow the link: Architecture des failles.
Journal articles on the topic 'Architecture des failles'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 journal articles for your research on the topic 'Architecture des failles.'
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 journal articles on a wide variety of disciplines and organise your bibliography correctly.
1
Manzano, Wallace, Valdemar Vicente Graciano Neto, and Elisa Yumi Nakagawa. "Dynamic-SoS: An Approach for the Simulation of Systems-of-Systems Dynamic Architectures." Computer Journal 63, no. 5 (April 12, 2019): 709–31. http://dx.doi.org/10.1093/comjnl/bxz028.
Full textAbstract:
Abstract Systems-of-Systems (SoS) combine heterogeneous, independent systems to offer complex functionalities for highly dynamic smart applications. Besides their dynamic architecture with continuous changes at runtime, SoS should be reliable and work without interrupting their operation and with no failures that could cause accidents or losses. SoS architectural design should facilitate the prediction of the impact of architectural changes and potential failures due to SoS behavior. However, existing approaches do not support such evaluation. Hence, these systems have been usually built without a proper evaluation of their architecture. This article presents Dynamic-SoS, an approach to predict/anticipate at design time the SoS architectural behavior at runtime to evaluate whether the SoS can sustain their operation. The main contributions of this approach comprise: (i) characterization of the dynamic architecture changes via a set of well-defined operators; (ii) a strategy to automatically include a reconfiguration controller for SoS simulation; and (iii) a means to evaluate architectural configurations that an SoS could assume at runtime, assessing their impact on the viability of the SoS operation. Results of our case study reveal Dynamic-SoS is a promising approach that could contribute to the quality of SoS by enabling prior assessment of its dynamic architecture.
2
Stevens, Vidar. "A concept in search of a stronger foundation: Three ideal types of place brand architectures." Marketing Review 19, no. 3 (December 31, 2019): 279–92. http://dx.doi.org/10.1362/146934719x15774562877737.
Full textAbstract:
Besides a few extra mentions in case studies and conceptual articles, the concept of place brand architecture has received limited attention in the place branding literature. Moreover, the literature lacks a convincing theoretical foundation of the concept of place brand architecture. This lack of scholarly attention for the concept of place brand architecture is striking, because it means that we ('as scholars') have little knowledge about the different manifestations of place brand architectures. From a critical stance, it can even be argued that scholars have failed to scrutinise the scholarly question of under what circumstances a specific set-up of place brand architecture is most suited for a specific type of multistakeholder place branding campaign. To this end, the goal of this article is to contribute to the place branding literature by theorising on what the concept of place brand architecture entails, what the different dimensions of a place brand architecture are, and what ideal types of place brand architectures can be distilled from the literature. These ideal types, which, as the article shows, can also be observed in practice, may help future research to look with specific theoretical lenses at set-ups of place brand architectures.
3
BROWN, ALAN W., and JOHN A. McDERMID. "THE ART AND SCIENCE OF SOFTWARE ARCHITECTURE." International Journal of Cooperative Information Systems 16, no. 03n04 (September 2007): 439–66. http://dx.doi.org/10.1142/s0218843007001718.
Full textAbstract:
Experience in all aspects of software engineering has confirmed the pivotal role of focusing on architectural concerns in the development of complex software-intensive systems. Consequently, the past 20 years has seen significant investments in the theory and practice of software architecture. However, architectural deficiencies are frequently cited as a key factor in the shortcomings and failures that lead to unpredictable delivery of complex operational systems. Here, we consider the art and science of software architecture: we explore the current state of software architecture, identify key architectural trends, and directions in academia and industry, and highlight some of the architectural research challenges which need to be addressed. The paper proposes a detailed agenda of research activities to be carried out by a partnership between academia and industry. While challenges exist in many domains, for this paper we draw examples from one area of particular concern: safety-critical systems.
4
Kaiser, Marcus. "Brain architecture: a design for natural computation." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 365, no. 1861 (September 13, 2007): 3033–45. http://dx.doi.org/10.1098/rsta.2007.0007.
Full textAbstract:
Fifty years ago, John von Neumann compared the architecture of the brain with that of the computers he invented and which are still in use today. In those days, the organization of computers was based on concepts of brain organization. Here, we give an update on current results on the global organization of neural systems. For neural systems, we outline how the spatial and topological architecture of neuronal and cortical networks facilitates robustness against failures, fast processing and balanced network activation. Finally, we discuss mechanisms of self-organization for such architectures. After all, the organization of the brain might again inspire computer architecture.
5
Hawkes, Dean. "The Centre and the Periphery: some reflections on the nature and conduct of architectural research." Architectural Research Quarterly 1, no. 1 (1995): 8–11. http://dx.doi.org/10.1017/s1359135500000051.
Full textAbstract:
This paper, which is based upon a talk given to the Martin Centre Research Society at the Department of Architecture at Cambridge in October 1994, examines the continuing relevance of the model of architectural research which was proposed at the Oxford Conference on architectural education in 1958. It suggests that the Oxford model, with its roots in the procedures of the sciences, in which ‘fundamental’ research precedes ‘development’, before leading into practical application, fails to account for the role of the designer in the evolution of the state of architecture. It also proposes that developments in architectural education, in particular the growth of the unit system of studio instruction, have added a further element to the productive and investigative potential of the schools of architecture, and that this must be accounted for in any valid model of research.
6
Ghayyur, Shahbaz Ahmed Khan, Daud Awan, and Malik Sikander Hayat Khiyal. "A Case of Engineering Quality for Mobile Healthcare Applications Using Augmented Personal Software Process Improvement." Mobile Information Systems 2016 (2016): 1–14. http://dx.doi.org/10.1155/2016/3091280.
Full textAbstract:
Mobile healthcare systems are currently considered as key research areas in the domain of software engineering. The adoption of modern technologies, for mobile healthcare systems, is a quick option for industry professionals. Software architecture is a key feature that contributes towards a software product, solution, or services. Software architecture helps in better communication, documentation of design decisions, risks identification, basis for reusability, scalability, scheduling, and reduced maintenance cost and lastly it helps to avoid software failures. Hence, in order to solve the abovementioned issues in mobile healthcare, the software architecture is integrated with personal software process. Personal software process has been applied successfully but it is unable to address the issues related to architectural design and evaluation capabilities. Hence, a new technique architecture augmented personal process is presented in order to enhance the quality of the mobile healthcare systems through the use of architectural design with integration of personal software process. The proposed process was validated by case studies. It was found that the proposed process helped in reducing the overall costs and effort. Moreover, an improved architectural design helped in development of high quality mobile healthcare system.
7
Charleson, A. W. "Seismic design within architectural education." Bulletin of the New Zealand Society for Earthquake Engineering 30, no. 1 (March 31, 1997): 46–50. http://dx.doi.org/10.5459/bnzsee.30.1.46-50.
Full textAbstract:
This paper discusses the teaching of earthquake resistant design within schools of architecture. It aims to stimulate discussion on more effective means of teaching the subject, and to suggest ideas and resources for schools whose seismic design curriculum might benefit from further development.
It is argued that seismic design issues should be included and integrated into architecture curricula. The case is based primarily on observations of building failures resulting from flawed architectural design decisions and subsequent critical reaction from within the architectural profession itself. However, another reason is that the large sizes and restrictive layouts of some seismic load resisting systems impact unavoidably upon architectural layouts.
The content, teaching methods and teaching staff qualities appropriate for a seismic design curriculum are discussed in a case study from the School of Architecture, Victoria University of Wellington. Two key aspects of perceived success are the course's relevance to architectural design and the variety of presentation. Teaching methods, teaching aids and useful references are provided.
The evaluation of the courses considered in the case study is discussed, and postgraduate and post-graduation seismic education in New Zealand is reviewed.
8
Lovra, Éva. "Perceptions. The Unbuilt Synagogue in Buda through Controversial Architectural Tenders (1912–1914)." Arts 8, no. 4 (November 8, 2019): 149. http://dx.doi.org/10.3390/arts8040149.
Full textAbstract:
The unbuilt synagogue in Buda is an almost forgotten chapter in Hungarian architectural history which drew great attention between 1911 and 1914. It was discussed extensively by the contemporary press in the early 20th century and by architects in the Hungarian capital of Austria–Hungary. Between 1912 and 1914 three tenders for the design of the synagogue of Buda were announced, with the participation of well-known (synagogue) architects of Hungary, who represented the diverse architectural styles of the period. The efforts to build the synagogue, including the three failed tenders, the 30 competition designs and the opinions of contemporaries raised, and continue to raise, many provocative questions. The present study is based on the analysis of the designs submitted and criticisms published in official architecture magazines between 1912 and 1914, but not yet studied and published elsewhere. Through these, the study showcases the controversial architectural decisions that could have changed the appearance of a neighbourhood but failed to do so. The study puts the townscape of Széll Kálmán Square in Buda in a new context, revealing another layer of architecture, urban design and architectural-sociology and perception of the capital’s synagogue on the eve of World War I and the dissolution of the Austro-Hungarian Empire.
9
McCann, Rachel. "A Sensuous Ethics of Difference." Hypatia 26, no. 3 (2011): 497–517. http://dx.doi.org/10.1111/j.1527-2001.2011.01207.x.
Full textAbstract:
This essay outlines how Western culture, and in particular the practice of architecture, has failed to develop a nuanced and ethical approach to alterity. It examines Maurice Merleau-Ponty's conception of the flesh as a process of continual self-interrogation through perceptual acts that intertwine communality and difference, establishing a shared world through interlocution, and explores how the work of Merleau-Ponty and Luce Irigaray augment each other to deepen our understanding of alterity. It then examines architectural design as an intercorporeal and intersubjective act that creatively refigures sedimented spatial and social habits. Using the example of an architectural design studio, it demonstrates how designers can critically confront nuances of alterity through investigating the corporeal and social depths of architecture.
10
Hussein, Fawzia Irhayyeim, and Ghada Musa Al-Silk. "The use of historical Type in the design of contemporary Iraqi architecture." Association of Arab Universities Journal of Engineering Sciences 26, no. 4 (December 31, 2019): 159–72. http://dx.doi.org/10.33261/jaaru.2019.26.4.018.
Full textAbstract:
The appearance of the type in architecture has had a profound impact on contemporary architectural thought after the free type followed by the architecture of modernity failed to achieve continuity and communication because the modern type is not descended from a historical chain, but was determined by economic calculations, which is produced by logical processes that combine needs with techniques. Therefore, the type is considered the theoretical tool that moves architecture and is the organizer with the historical content, which can continue to achieve a culturally continuous architecture, that realizes the architects to create communicating architecture. Thus, the problem is the lack of knowledge in the method of using the historical type in the contemporary of Iraqi architecture, and to extract the most important characteristics. The aim of the research is extraction of the historical type of Iraqi architecture - for the period preceding Islam (Sumerian, Assyrian, Babylonian, and Hatra) and its use in the design of contemporary Iraqi architecture. Thus, the hypothesis is the use of the historical type in contemporary Iraqi architecture creates contemporary architecture and urban continuum.
11
Xu, Xiao, Rusheng Ju, Xiaocheng Liu, Ge Li, and Young-Jun Son. "Extending HTN to planning and execution control for small combat unit simulation." International Journal of Modeling, Simulation, and Scientific Computing 08, no. 02 (January 26, 2017): 1750032. http://dx.doi.org/10.1142/s1793962317500325.
Full textAbstract:
Modeling how military commanders carry out operations is considered complicated, requiring the capability of not only planning for multiple subordinates but also responding to unexpected events during execution. This paper presents an Hierarchical Task Network (HTN) embedded planning and execution control architecture for small unit commander agents. To be adaptive to dynamic world state changes, the architecture employs a partial planning mechanism and generates actions only applicable to current situations. It is also able to coordinate subordinates’ actions and handle execution failures at runtime. We demonstrate the architecture’s use with an infantry company scenario, where the commander orders three platoons assaulting a defined hill. Our approach shows the effectiveness to control multiple entities in dynamic environments, making the architecture well-suited to represent small unit commanders’ behavior.
12
Jensen, Finn, and Ellen Thorogood-Page. "Britain's first steps in Modernism: Cressing Road and the Clockhouse Way estate 1918–20." Architectural Research Quarterly 13, no. 3-4 (December 2009): 273–83. http://dx.doi.org/10.1017/s1359135510000126.
Full textAbstract:
In this paper architectural Modernism is used to describe the unadorned flat-roofed houses constructed using modern materials such as concrete, reinforced concrete and steel, and built mainly in the period following the First World War. This is a sparse definition that fails to do justice to the much broader interpretation of Modernism, which affected not only architecture, but all the arts in the first quarter of the twentieth century, a movement that reached maturity around 1930. However, even though the definition fails to reflect the richness of the Modernist idiom, the houses have long been recognised as representing Britain's first inroads into Modernist architecture as acknowledged by, for example, Gould, Bentley, Collins and Bettley.
13
Kiran, Mariam, Gregory Katsaros, Jordi Guitart, and Juan Luis Prieto. "Methodology for Information Management and Data Assessment in Cloud Environments." International Journal of Grid and High Performance Computing 6, no. 4 (October 2014): 46–71. http://dx.doi.org/10.4018/ijghpc.2014100104.
Full textAbstract:
The emergence of cloud technologies has affected the service computing ecosystem introducing new roles and relationships as well as new architectural and business models. Along with the increase of capabilities and potentials of the service providers comes the increase of the information available and issues to efficiently manage it. In this paper, an architectural approach is presented that involves a combination of a cloud-enabled data model, the monitoring infrastructure and the establishment of assessment mechanisms which are based on factors such as trust, risk, energy and cost (TREC factors). This architectural model discusses the monitoring features as well as the how the assessment functionalities can work together with other components to produce a self-reliant cloud ecosystem preventing any fails during the service lifecycle. This paper elaborates on how the self-management, by using decision-making processes, can maximise business level objectives of the providers. The results presented in the paper show how the suggested architecture can help develop efficient cloud architecture.
14
Ji, Fengyi, and Shangyi Zhou. "Dwelling Is a Key Idea in Traditional Residential Architecture’s Sustainability: A Case Study at Yangwan Village in Suzhou, China." Sustainability 13, no. 11 (June 7, 2021): 6492. http://dx.doi.org/10.3390/su13116492.
Full textAbstract:
Previous studies have failed to grasp the essence of traditional building habits responding to natural challenges. Therefore, contradictions arise between unified regulations protecting traditional residential architecture proposed by experts and the diverse construction transformation performed by locals. To resolve these contradictions, fieldwork was conducted in Yangwan, a famous village in South China. The traditional residential architectural characteristics in three periods were obtained and compared. Peirce’s interpretation of the three natures of habit and Heidegger’s dwelling help determine the essence of building habits. The logic in traditional residential architecture is analysed through the “four-layer integrated into one” framework (including the natural environment, livelihood form, institution and ideology), yielding the following results. (1) The characteristics of the residential architectural form change with local livelihood form, institution and ideology. Nevertheless, the process by which local residents think, judge and respond to natural challenges remains unchanged (Thirdness of Habit), forming the core of dwelling. (2) The characteristics of the architectural form are determined by the causal chain of “four-layer integrated into one”. Stable causal chains are formed by the Thirdness of Habit, which represents people’s initiative in addressing natural challenges. Therefore, the protection of traditional residential architecture should centre on dwelling and people’s agency in response to the natural environment rather than on maintaining a unified physical form.
15
Li, Gang, Xing San Qian, and Chun Ming Ye. "A New Architecture for Large Data Warehouse." Applied Mechanics and Materials 55-57 (May 2011): 87–90. http://dx.doi.org/10.4028/www.scientific.net/amm.55-57.87.
Full textAbstract:
Data warehouse is playing a more and more important role in company’s decision making; it is the basis for a typical business intelligence solution. The paper points out the reasons why data warehouse projects failed and by analyzing the current data warehouse architectures, as well as technologies used in industry, a new data warehouse architecture is proposed which has many advantages over current ones, for example, it is extensible, reusable, flexible and with high performance and lower cost.
16
Mingjing Chen and A. Orailoglu. "On Diagnosis of Timing Failures in Scan Architecture." IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems 31, no. 7 (July 2012): 1102–15. http://dx.doi.org/10.1109/tcad.2012.2186298.
Full text
17
Nikpour, Hoda, and Agnar Aamodt. "Fault diagnosis under uncertain situations within a Bayesian knowledge-intensive CBR system." Progress in Artificial Intelligence 10, no. 3 (March 4, 2021): 245–58. http://dx.doi.org/10.1007/s13748-020-00227-x.
Full textAbstract:
AbstractThis paper presents fault diagnosis and problem solving under uncertainty by a Bayesian supported knowledge-intensive case-based reasoning (CBR) system called BNCreek. In this system, the main goal is to diagnose the causal failures behind the symptoms in complex and uncertain domains. The system’s architecture is described in three aspects: the general, structural, and functional architectures. The domain knowledge is represented by formally defined methods. An integration of semantic networks, Bayesian networks, and CBR is employed to deal with the domain uncertainty. An experiment is conducted from the oil well drilling domain, which is a complex and uncertain area as an application domain. The system is evaluated against the expert estimations to find the most efficient solutions for the problems. The obtained results reveal the capability of the system in diagnosing causal failures.
18
Idham, Noor Cholis. "EARTHQUAKE FAILURES ON BUILDINGS AND THE ROLE OF ARCHITECT ON BUILDING SAFETY." DIMENSI (Journal of Architecture and Built Environment) 45, no. 2 (January 18, 2019): 153. http://dx.doi.org/10.9744/dimensi.45.2.153-164.
Full textAbstract:
The safety of building users against earthquakes is not directly caused by earthquakes, but rather by the ability of the people and environment to deal with the shake. The failure of the building is the most causing factor for the casualties and property losses. However, the building structural strength is not the single decisive aspect of building safety but also accompanying by others such as building design and the use of architectural elements. This paper explores the various failures after earthquakes and its relationship with architecture designs as the work of architect in the building process. The discussion is conducted based on the type of the failures, the causing factor of the damages, and how the builders should anticipate it. The results of this study show that the main principles relating to the safety of buildings are closely related to architects who play a significant role in building design starting from the decision of the location, choosing the appropriate building type, designing less vulnerable structure, and avoiding the complexity in building design. Architects are expected to increase the safety of building users by their devoted responsibility for avoiding the unnecessary casualties.
19
Matute-Peaspan, Jose Angel, Joshue Perez, and Asier Zubizarreta. "A Fail-Operational Control Architecture Approach and Dead-Reckoning Strategy in Case of Positioning Failures." Sensors 20, no. 2 (January 13, 2020): 442. http://dx.doi.org/10.3390/s20020442.
Full textAbstract:
Presently, in the event of a failure in Automated Driving Systems, control architectures rely on hardware redundancies over software solutions to assure reliability or wait for human interaction in takeover requests to achieve a minimal risk condition. As user confidence and final acceptance of this novel technology are strongly related to enabling safe states, automated fall-back strategies must be assured as a response to failures while the system is performing a dynamic driving task. In this work, a fail-operational control architecture approach and dead-reckoning strategy in case of positioning failures are developed and presented. A fail-operational system is capable of detecting failures in the last available positioning source, warning the decision stage to set up a fall-back strategy and planning a new trajectory in real time. The surrounding objects and road borders are considered during the vehicle motion control after failure, to avoid collisions and lane-keeping purposes. A case study based on a realistic urban scenario is simulated for testing and system verification. It shows that the proposed approach always bears in mind both the passenger’s safety and comfort during the fall-back maneuvering execution.
20
Caro, Manuel Fernando, Darsana P. Josyula, Dalia Patricia Madera, Catriona M. Kennedy, and Adán A. Gómez. "The CARINA Metacognitive Architecture." International Journal of Cognitive Informatics and Natural Intelligence 13, no. 4 (October 2019): 71–90. http://dx.doi.org/10.4018/ijcini.2019100104.
Full textAbstract:
Metacognition has been used in artificial intelligence to increase the level of autonomy of intelligent systems. However, the design of systems with metacognitive capabilities is a difficult task due to the number and complexity of processes involved. The main objective of this article is to introduce a novel metacognitive architecture for monitoring and control of reasoning failures in artificial intelligent agents. CARINA metacognitive architecture is based on precise definitions of structural and functional elements of metacognition as defined in the MISM meta-model. CARINA can be used to implement real-world cognitive agents with the capability for introspective monitoring and meta-level control. Introspective monitoring detects reasoning failure (for example, when expectation is violated). Metacognitive control selects strategies to recover from failures. The article demonstrates a CARINA implementation of reasoning failure detection and recovery in an intelligent tutoring system called FUNPRO.
21
Major, Mark David. "‘Excavating’ Pruitt-Igoe using space syntax." Architectural Research Quarterly 25, no. 1 (March 2021): 55–68. http://dx.doi.org/10.1017/s1359135521000130.
Full textAbstract:
Pruitt-Igoe, in St Louis, Missouri, United States, was one of the most notorious social housing projects of the twentieth century. Charles Jencks argued opening his book The Language of Post-Modern Architecture, ‘Modern Architecture died in St Louis, Missouri on July 15, 1972 at 3.32 pm (or thereabouts) when the infamous Pruitt-Igoe scheme, or rather several of its slab blocks, were given the final coup de grâce by dynamite.’ However, the magazine Architectural Forum had heralded the project as ‘the best high apartment’ of the year in 1951. Indeed, one of its first residents in 1957 described Pruitt-Igoe as ‘like an oasis in a desert, all of this newness’. But a later resident derided the housing project as ‘Hell on Earth’ in 1967. Only eighteen years after opening, the St Louis Public Housing Authority (PHA) began demolishing Pruitt-Igoe in 1972 [1]. It remains commonly cited for the failures of modernist design and planning.
22
Zarecor, Kimberly E. "The pre-history of the communist future in Czechoslovakia: Case studies in architecture and revolutionary socialism before 1948." Journal of Modern European History 18, no. 4 (August 10, 2020): 451–73. http://dx.doi.org/10.1177/1611894420943798.
Full textAbstract:
Scholars have recently written about the importance of Marxism and political agitation within architectural discourses of post-war East Central Europe. Less attention has been paid to the period before World War II and the ways in which Marxist language and concepts were already infused into interwar avant-garde practices and debates. This essay argues that a necessary corrective to this gap in the historiography is to write new histories of interwar revolutionary socialist architecture that do not presuppose the failures of the socialist project itself. These histories emerge from a time in Europe when Marxism offered an enticing alternative vision of the future in a region where economic and social deprivation was real and urgent. Three case studies in Czechoslovakia will be discussed: Karel Teige’s engagement with Hannes Meyer, the discourse of the Architectural Working Group, and early experimentation with the collective housing typology in Litvínov, Prague, and Zlín.
23
Ferretti, Stefano, Marco Roccetti, and Claudio E. Palazzi. "Intelligent Synchronization for Mirrored Game Servers: A Real Case Study." Journal of Advanced Computational Intelligence and Intelligent Informatics 12, no. 2 (March 20, 2008): 132–41. http://dx.doi.org/10.20965/jaciii.2008.p0132.
Full textAbstract:
Multiplayer Online Games (MOGs) embody intensive applications that require smart solutions able to cope with the high network traffic generated by players, variable latencies, and system failures. To this aim, the anatomy of the game architecture should reflect the possibly wide geographical dispersion of players interacting in a game session. Whereas the use of mirrored game servers has been recognized as a scalable solution to support MOGs, yet, a critical aspect remains that of identifying an efficient synchronization scheme able to responsively guarantee the consistency of the redundant game state. To address this issue, we added intelligence to an optimistic synchronization scheme for mirrored game server architectures: our scheme is able to classify events and, based on their semantics, relax ordering and reliability constraints to gain responsiveness without sacrificing consistency. In this work, we describe the devised scheme and report on an experimental assessment that is based on a real implementation of a mirrored game server architecture, deployed over the Internet. Results definitively show the efficacy of our approach.
24
Safavi, Saeid, Mohammad Amin Safavi, Hossein Hamid, and Saber Fallah. "Multi-Sensor Fault Detection, Identification, Isolation and Health Forecasting for Autonomous Vehicles." Sensors 21, no. 7 (April 5, 2021): 2547. http://dx.doi.org/10.3390/s21072547.
Full textAbstract:
The primary focus of autonomous driving research is to improve driving accuracy and reliability. While great progress has been made, state-of-the-art algorithms still fail at times and some of these failures are due to the faults in sensors. Such failures may have fatal consequences. It therefore is important that automated cars foresee problems ahead as early as possible. By using real-world data and artificial injection of different types of sensor faults to the healthy signals, data models can be trained using machine learning techniques. This paper proposes a novel fault detection, isolation, identification and prediction (based on detection) architecture for multi-fault in multi-sensor systems, such as autonomous vehicles.Our detection, identification and isolation platform uses two distinct and efficient deep neural network architectures and obtained very impressive performance. Utilizing the sensor fault detection system’s output, we then introduce our health index measure and use it to train the health index forecasting network.
25
Ledanff, Susanne. "The Palace of the Republic versus the Stadtschloss: The Dilemmas of Planning in the Heart of Berlin." German Politics and Society 21, no. 4 (December 1, 2003): 30–73. http://dx.doi.org/10.3167/104503003782353330.
Full textAbstract:
On 4 July 2002, the German Bundestag had to decide on the futureof one of the capital city’s principal historical sites: the square knownas the Schlossplatz, where the Hohenzollern Palace once stood butthat since 1976 had been the site of the German Democratic Republic’sflagship Palace of the Republic. It was not the first time thatGerman politicians had been called upon to decide issues relating toart and architecture. On previous occasions votes had been taken onthe wrapping of the Reichstag by Christo and Jeanne-Claude, SirNorman Foster’s dome, Hans Haacke’s artistic installation “DerBevölkerung” inside the Reichstag, and Peter Eisenman’s design forBerlin’s Holocaust memorial.1 Their decision to rebuild the historicalpalace, however, differed in that the politicians did not vote onan architectural design, “in eigener Sache.”2 That is, it was not abuilding or monument belonging to the governmental or politicalsphere of the capital city but rather a site likely to house culturalinstitutions. Parliamentarians, thus, were called upon to settle atwelve-year-old planning and architectural controversy after all othermeans, including architectural competitions, had failed.
26
Whyte, William. "The Ethics of the Empty Church: Anglicanism’s Need for a Theology of Architecture." Journal of Anglican Studies 13, no. 2 (July 2, 2015): 172–88. http://dx.doi.org/10.1017/s1740355315000108.
Full textAbstract:
AbstractIn this polemical paper, produced for the Churches, Communities, and Society conference at the Lincoln Theological Institute, University of Manchester, I argue that the Church of England has failed to develop a coherent or convincing theology of architecture. Such a failure raises practical problems for an institution responsible for the care of 16,000 buildings, a quarter of which are of national or international importance. But it has also, I contend, produced an impoverished understanding of architecture’s role as an instrument of mission and a tool for spiritual development. Following a historical survey of attitudes towards church buildings, this paper explores and criticizes the Church of England’s current engagement with its architecture. It raises questions about what has been done and what has been said about churches. It argues that the Church of England lacks a theology of church building and church closing, and calls for work to develop just such a thing.
27
Banatre, M., A. Gefflaut, P. Joubert, C. Morin, and P. A. Lee. "An architecture for tolerating processor failures in shared-memory multiprocessors." IEEE Transactions on Computers 45, no. 10 (1996): 1101–15. http://dx.doi.org/10.1109/12.543705.
Full text
28
Sharma, Amit, Abhimanyu Singh Chauhan, Jagmohan Lal, Ravneet Kaur, and Navreet Sandhu. "Nanophase Ceramics: Boon for Osseointegration." Dental Journal of Advance Studies 01, no. 01 (April 2013): 030–32. http://dx.doi.org/10.1055/s-0038-1670590.
Full textAbstract:
AbstractTraditional materials utilized for dental applications have been selected based on their mechanical properties and ability to remain inert in vivo; this selection process has provided materials that satifisfy physiological loading conditions but do not duplicate the mechanical, chemical, and architectural properties of bone. The less than optimal surface properties of conventional materials have resulted in clinical complications that necessitate surgical removal of many such failed bone implants due to insufficient bonding to juxtaposed bone. Due to unique surface and mechanical properties, as well as the ability to simulate the three-dimensional architecture of physiological bone, one possible consideration for the next generation of orthopedic and dental implants with improved efficacy are nanophase materials.
29
Kharatyan, Aschot, Julian Tekaat, Sergej Japs, Harald Anacker, and Roman Dumitrescu. "METAMODEL FOR SAFETY AND SECURITY INTEGRATED SYSTEM ARCHITECTURE MODELING." Proceedings of the Design Society 1 (July 27, 2021): 2027–36. http://dx.doi.org/10.1017/pds.2021.464.
Full textAbstract:
AbstractAs digitization progresses, the integration of information and communication technologies in technical systems is constantly increasing. Fascinating value potentials are emerging (e.g. autonomous driving), but also challenges in the system development. The constantly increasing product complexity and degree of networking require a systemic development, which is fulfilled by established approaches of Model-Based Systems Engineering (MBSE). To ensure the reliability of tomorrow's systems, an integrative and early consideration of security and safety is additionally required. In order to show the possibility and consequences of failures and attacks, the paper develops a modeling language that links established and partly isolated security and safety approaches within a consistent metamodel. The developer is enabled to synthesize system architectures transparently on an interdisciplinary level and to analyze attack and failure propagation integratively. The approach uncovers synergetic and especially contrasting goals and effects of architectural designs in terms of safety and security in order to make adequate architectural decisions based on trade-off analyses.
30
Nassir, M. "A LOOK AT THE ERRONEOUS RESTORATION OF THE HISTORICAL KASBAH OF AGADIR, MOROCCO." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLIV-M-1-2020 (July 24, 2020): 1111–15. http://dx.doi.org/10.5194/isprs-archives-xliv-m-1-2020-1111-2020.
Full textAbstract:
Abstract. Architecture represents the cultural and intellectual identity of peoples. It is an authentic wealth of civilization that embodies the creative and aesthetic level that man has reached in various successive eras and historical periods (Al-Zahrani, 2012). It is a heritage that cannot be estimated and a living memory that reflects the extent of harmony between climate and the natural components of the environment on the one hand and, on the other, the economic and social systems on which man depends. Architectural heritage has received substantial attention from various entities, as it is an important historical and national project that contributes to the development of contemporary and future social structure and establishes a cultural policy building responsible community awareness. This so important considering that cultural heritage faces threats mainly related to its deterioration because of failing its preservation or undertaking inappropriate restoration work, as we illustrate by the case of the Kasbah of Agadir. The restorers with insufficient experience committed serious architectural failures in the Kasbah. It is difficult now to restore the state of the building before the restoration. They used materials that had a negative and distorting impact. As a result, these mistakes led to the destruction of the Kasbah’s architectural features.
31
Wei, Xiaomin, Yunwei Dong, Pengpeng Sun, and Mingrui Xiao. "Safety Analysis of AADL Models for Grid Cyber-Physical Systems via Model Checking of Stochastic Games." Electronics 8, no. 2 (February 14, 2019): 212. http://dx.doi.org/10.3390/electronics8020212.
Full textAbstract:
As safety-critical systems, grid cyber-physical systems (GCPSs) are required to ensure the safety of power-related systems. However, in many cases, GCPSs may be subject to uncertain and nondeterministic environmental hazards, as well as the variable quality of devices. They can cause failures and hazards in the whole system and may jeopardize system safety. Thus, it necessitates safety analysis for system safety assurance. This paper proposes an architecture-level safety analysis approach for GCPSs applying the probabilistic model-checking of stochastic games. GCPSs are modeled using Architecture Analysis and Design Language (AADL). Random errors and failures of a GCPS and nondeterministic environment behaviors are explicitly described with AADL annexes. A GCPS AADL model including the environment can be regarded as a game. To transform AADL models to stochastic multi-player games (SMGs) models, model transformation rules are proposed and the completeness and consistency of rules are proved. Property formulae are formulated for formal verification of GCPS SMG models, so that occurrence probabilities of failed states and hazards can be obtained for system-level safety analysis. Finally, a modified IEEE 9-bus system with grid elements that are power management systems is modeled and analyzed using the proposed approach.
32
Deigele, Wolfgang, Melanie Brandmeier, and Christoph Straub. "A Hierarchical Deep-Learning Approach for Rapid Windthrow Detection on PlanetScope and High-Resolution Aerial Image Data." Remote Sensing 12, no. 13 (July 2, 2020): 2121. http://dx.doi.org/10.3390/rs12132121.
Full textAbstract:
Forest damage due to storms causes economic loss and requires a fast response to prevent further damage such as bark beetle infestations. By using Convolutional Neural Networks (CNNs) in conjunction with a GIS, we aim at completely streamlining the detection and mapping process for forest agencies. We developed and tested different CNNs for rapid windthrow detection based on PlanetScope satellite data and high-resolution aerial image data. Depending on the meteorological situation after the storm, PlanetScope data might be rapidly available due to its high temporal resolution, while the acquisition of high-resolution airborne data often takes weeks to a month and is, therefore, used in a second step for more detailed mapping. The study area is located in Bavaria, Germany (ca. 165 km2), and labels for damaged areas were provided by the Bavarian State Institute of Forestry (LWF). Modifications of a U-Net architecture were compared to other approaches using transfer learning (e.g., VGG19) to find the most efficient architecture for the task on both datasets while keeping the computational time low. A custom implementation of U-Net proved to be more accurate than transfer learning, especially on medium (3 m) resolution PlanetScope imagery (intersection over union score (IoU) 0.55) where transfer learning completely failed. Results for transfer learning based on VGG19 on high-resolution aerial image data are comparable to results from the custom U-Net architecture (IoU 0.76 vs. 0.73). When using both architectures on a dataset from a different area (located in Hesse, Germany), however, we find that the custom implementations have problems generalizing on aerial image data while VGG19 still detects most damage in these images. For PlanetScope data, VGG19 again fails while U-Net achieves reasonable mappings. Results highlight the potential of Deep Learning algorithms to detect damaged areas with an IoU of 0.73 on airborne data and 0.55 on Planet Dove data. The proposed workflow with complete integration into ArcGIS is well-suited for rapid first assessments after a storm event that allows for better planning of the flight campaign followed by detailed mapping in a second stage.
33
Singh, Dilbag, Jaswinder Singh, and Amit Chhabra. "Failures in Cloud Computing Data Centers in 3-tier Cloud Architecture." International Journal of Information Engineering and Electronic Business 4, no. 3 (July 1, 2012): 1–8. http://dx.doi.org/10.5815/ijieeb.2012.03.01.
Full text
34
Thainesh, Joseph Stalin, Ning Wang, and Rahim Tafazolli. "A scalable architecture for handling control plane failures in heterogeneous networks." IEEE Communications Magazine 54, no. 4 (April 2016): 145–51. http://dx.doi.org/10.1109/mcom.2016.7452279.
Full text
35
Anand, Santhanakrishnan, Ding Ding, Paolo Gasti, Mike O'Neal, Mauro Conti, and Kiran S. Balagani. "DISPERSE: A Decentralized Architecture for Content Replication Resilient to Node Failures." IEEE Transactions on Network and Service Management 17, no. 1 (March 2020): 201–12. http://dx.doi.org/10.1109/tnsm.2019.2936425.
Full text
36
Quan, Dang Minh, and Odej Kao. "ON ARCHITECTURE FOR SLA-AWARE WORKFLOWS IN GRID ENVIRONMENTS." Journal of Interconnection Networks 06, no. 03 (September 2005): 245–63. http://dx.doi.org/10.1142/s0219265905001411.
Full textAbstract:
Service Level Agreements (SLAs) are currently one of the major research topics in Grid Computing, as they serve as a foundation for reliable and predictable Grids. SLAs define an explicit statement of expectations and obligations in a business relationship between provider and customer. Thus, SLAs should guarantee the desired and a-priori negotiated Quality of Service (QoS), which is a mandatory prerequisite for the Next Generation Grids. This development is proved by a manifold research work about SLAs and architectures for implementing SLAs in Grid environments. However, this work is mostly related to SLAs for standard, monolithic Grid jobs and neglects the dependencies between different steps of operation. The complexity of an SLA-specification for workflows grows significantly, as characteristics of correlated sub-jobs, the data transfer phases, the deadline constraints and possible failures have to be considered. Thus, an architecture for an SLA-aware workflow implementation needs sophisticated mechanisms for specification and management, sub-job mapping, data transfer optimization and fault reaction. Therefore, this paper presents an architecture for SLA-aware Grid workflows. The main contributions are an improved specification language for SLA-aware workflows, a mapping and optimization algorithm for sub-job assignment to Grid resources and a prototype implementation using standard middleware. Experimental measurements prove the quality of the development.
37
Gabriska, Darja. "Evaluation of the Level of Reliability in Hazardous Technological Processes." Applied Sciences 11, no. 1 (December 25, 2020): 134. http://dx.doi.org/10.3390/app11010134.
Full textAbstract:
In an automated systems environment is very important to predicted failures or unexpected situations to achieve system reliability. Failure of such systems can cause serious property damage, the environment, damage to human health or cause death. The essential task is to determine the tolerable and acceptable risk. The required level of risk for safety-critical systems can be achieved by using international technical standards and applying safety functions. Safety functions are implemented using an electrical/electronic/programmable electronics (E/E/PE) safety-related system. Technical standards offer the aspect of balancing risk tolerability according to the relevant, reliable safety functions. Based on the specific architecture of the whole system, it is possible to determine the maximum failure rate of the probability of failure on demand (PFDSYS) of the selected architecture. Subsequent application of reliability analysis using the event tree analysis (ETA) and fault tree analysis (FTA) methods can optimize the failure rate of the entire system. Application of reliability analysis using event tree analysis (ETA) and fault tree analysis (FTA) methods can only theoretically optimize the failure rate of the entire system with constant initial conditions and constant parameters of the reliability functions. The article proposes a new methodology for dynamic analysis of the state of system reliability as a function of the system operation time, maintenance frequency and system architecture. As a result of the methodology is a library of standard element architectures and simulation models which allows predicting and optimizing the reliability of E/E/PE safety-related systems.
38
Putro, Hendro Trieddiantoro, and Wiliarto Wirasmoyo. "APLIKASI FABRIKASI DIGITAL ARSITEKTUR STUDI DESAIN PARAMETRIK DIAGRAM VORONOI." NALARs 19, no. 1 (January 22, 2020): 49. http://dx.doi.org/10.24853/nalars.19.1.49-58.
Full textAbstract:
The development of technology and design methods in architecture continues, for example, parametric design methods and the application of digital fabrication technology to create models of representation and construction. Digital fabrication defined the process of manipulating objects using a CNC router, 3d printer, and laser cutter using a reduction or addition method. Studying digital fabrication technology is now a demand for academics and professionals in the field of architecture. Both architecture instructors and students are now required to increase their understanding and ability to process digital designs into scale-scale representation through a digital fabrication process.Through this research, researchers will describe the learning process of digital laser cut fabrication applications using parametric design methods, which are in the form of developing a Voronoi diagram-based design. Parametric design development will be carried out using Rhino software with Grasshopper. This research activity was carried out in the Department of Architecture FST Campus 2, University Technology of Yogyakarta. This research divided into several activities, namely the digital design process, the fabrication preparation process, and the installation or assembly of the model. Also, researchers will explain the obstacles or problems faced in each activity, as well as the opportunities and challenges of digital fabrication applications in architecture.The results of the study showed a clear process in each phase of the activity, and the explanation complemented by obstacles or problems encountered and problem-solving. Failures that occur in the fabrication process provide learning that digital design and digital fabrication are a unified, interconnected process. The opportunities and challenges of digital fabrication applications in the architectural world are further interesting considerations to discuss.
39
Hong, Duwon, Keonsoo Ha, Minseok Ko, Myoungjun Chun, Yoona Kim, Sungjin Lee, and Jihong Kim. "Reparo: A Fast RAID Recovery Scheme for Ultra-large SSDs." ACM Transactions on Storage 17, no. 3 (August 31, 2021): 1–24. http://dx.doi.org/10.1145/3450977.
Full textAbstract:
A recent ultra-large SSD (e.g., a 32-TB SSD) provides many benefits in building cost-efficient enterprise storage systems. Owing to its large capacity, however, when such SSDs fail in a RAID storage system, a long rebuild overhead is inevitable for RAID reconstruction that requires a huge amount of data copies among SSDs. Motivated by modern SSD failure characteristics, we propose a new recovery scheme, called reparo , for a RAID storage system with ultra-large SSDs. Unlike existing RAID recovery schemes, reparo repairs a failed SSD at the NAND die granularity without replacing it with a new SSD, thus avoiding most of the inter-SSD data copies during a RAID recovery step. When a NAND die of an SSD fails, reparo exploits a multi-core processor of the SSD controller in identifying failed LBAs from the failed NAND die and recovering data from the failed LBAs. Furthermore, reparo ensures no negative post-recovery impact on the performance and lifetime of the repaired SSD. Experimental results using 32-TB enterprise SSDs show that reparo can recover from a NAND die failure about 57 times faster than the existing rebuild method while little degradation on the SSD performance and lifetime is observed after recovery.
40
Rebello, Anthony, Yuvraj Patel, Ramnatthan Alagappan, Andrea C. Arpaci-Dusseau, and Remzi H. Arpaci-Dusseau. "Can Applications Recover from fsync Failures?" ACM Transactions on Storage 17, no. 2 (June 15, 2021): 1–30. http://dx.doi.org/10.1145/3450338.
Full textAbstract:
We analyze how file systems and modern data-intensive applications react to fsync failures. First, we characterize how three Linux file systems (ext4, XFS, Btrfs) behave in the presence of failures. We find commonalities across file systems (pages are always marked clean, certain block writes always lead to unavailability) as well as differences (page content and failure reporting is varied). Next, we study how five widely used applications (PostgreSQL, LMDB, LevelDB, SQLite, Redis) handle fsync failures. Our findings show that although applications use many failure-handling strategies, none are sufficient: fsync failures can cause catastrophic outcomes such as data loss and corruption. Our findings have strong implications for the design of file systems and applications that intend to provide strong durability guarantees.
41
Roychoudhury, Probidita, Basav Roychoudhury, and Dilip Kumar Saikia. "Hierarchical Group Based Mutual Authentication and Key Agreement for Machine Type Communication in LTE and Future 5G Networks." Security and Communication Networks 2017 (2017): 1–21. http://dx.doi.org/10.1155/2017/1701243.
Full textAbstract:
In view of the exponential growth in the volume of wireless data communication among heterogeneous devices ranging from smart phones to tiny sensors across a wide range of applications, 3GPP LTE-A has standardized Machine Type Communication (MTC) which allows communication between entities without any human intervention. The future 5G cellular networks also envisage massive deployment of MTC Devices (MTCDs) which will increase the total number of connected devices hundredfold. This poses a huge challenge to the traditional cellular system processes, especially the traditional Mutual Authentication and Key Agreement (AKA) mechanism currently used in LTE systems, as the signaling load caused by the increasingly large number of devices may have an adverse effect on the regular Human to Human (H2H) traffic. A solution in the literature has been the use of group based architecture which, while addressing the authentication traffic, has their share of issues. This paper introduces Hierarchical Group based Mutual Authentication and Key Agreement (HGMAKA) protocol to address those issues and also enables the small cell heterogeneous architecture in line with 5G networks to support MTC services. The aggregate Message Authentication Code based approach has been shown to be lightweight and significantly efficient in terms of resource usage compared to the existing protocols, while being robust to authentication message failures, and scalable to heterogeneous network architectures.
42
Kurniawan, Kemas Ridwan. "DINAMIKA ARSITEKTUR INDONESIA DAN REPRESENTASI ‘POLITIK IDENTITAS’ PASCA REFORMASI." NALARs 17, no. 1 (January 2, 2018): 65. http://dx.doi.org/10.24853/nalars.17.1.65-78.
Full textAbstract:
ABSTRAK. Menguatnya politik identitas di Indonesia pasca reformasi telah melahirkan formasi arsitektur baru yang tersebar di berbagai daerah di Indonesia. Identitas budaya terkait indigenitas menjadi bagian dari politik identitas yang menurut sebagian pengamat politik disinyalir dimanfaatkan para elit dan penguasa untuk kepentingan politik kekuasaan. Ironisnya, dalam bidang arsitektur, definisi tentang identitas ini justru semakin tidak jelas. Definisi-definisi ini berputar pada debat tentang pencarian jati diri yang tidak pernah selesai dan sering diasosiasikan dengan proses untuk memunculkan jati diri kebudayaan sebagai jawaban atas tantangan universalitas arsitektur modern, globalisasi dan kemajuan teknologi. Makalah ini mencoba mengambil dari sudut pandang yang berbeda yaitu politik identitas dalam silangannya dengan arsitektur (‘space’), waktu (sejarah) dan aspek sosial-politik. Isu yang muncul adalah bagaimana politik identitas perlahan-lahan melanjutkan pengaruhnya dalam formasi arsitektur di Indonesia pasca reformasi, di balik kesalah-pahaman tentang definisi ‘identitas’ dalam debat-debat arsitektur di Indonesia. Hal ini terjadi karena banyak arsitek atau teoretikus arsitektur di Indonesia membatasi dirinya hanya dalam lingkup arsitektur, dan gagal berinteraksi secara lebih luas dengan isu-isu sosio politik. Konsekuensinya, di satu sisi, istilah ‘identitas’ kehilangan pengaruh sosio-politiknya dan direduksi kepada masalah-masalah estetika visual semata, yang mengaburkan identitas arsitektur sebagai suatu konsep sosial budaya. Sementara itu, di sisi lain pemanfaatan identitas sebagai bagian dari komoditas politik juga melanjutkan dinamika yang terjadi di daerah (regional) yaitu warna kekuasaan (power) dalam formasi arsitektur di Indonesia sebagai imbas dari Desentralisasi. Makalah ini mengkritisi perilaku politik identitas yang cenderung berubah menjadi ‘regime’ dalam formasi identitas arsitektur saat ini, dan kurang terangkatnya isu identitas arsitektur dengan dinamika sosio-politik dan keseharian (‘everyday-life’) masyarakat. Kata Kunci: subjektivitas, hibrid, indigenitas, pasca-nasionalisme ABSTRACT. Straighthening the politics of identity in Indonesia after the 1997 political reformation has increased the formation of new architecture which are scattered in various regions in Indonesia. The cultural identity on indigeneity and become part of identity politics. It was exploited by elites and rulers for the sake of power politics. Ironically, in the field of architecture, the definition of this identity is even more unclear. These definitions spin on the debate about the search for identity that was never finished and is often associated with the process to bring a cultural identity as a response to the challenges of modern architecture such as universality, globalization and technological progress. This paper tried to look at architecture (space) in the intersection with time (history) and socio-political aspects. The issue that arises is how the politics of identity is slowly continuing influence in the formation of architecture in Indonesia after the 1997 political reform, under misconceptions about the definition of 'identity' in debates of architecture in Indonesia. This happens because many architects or architectural theorists in Indonesia restricts itself only in the sphere of architecture, and failed to interact more broadly with social and political issues. Consequently, on the one hand, the term 'identity' loss of the socio-political influences and are reduced to a visual aesthetic problems alone, which obscure the identity of architecture as a socio-cultural concept. Meanwhile, on the other hand the use of identity as part of a political commodity also continue the dynamics that occur in the area (regional) is the color of power (power) in the formation of architecture in Indonesia as the impact of decentralization. The paper criticized the behavior of identity politics that tends to turn into a 'regime' in the current architectural identity formation, and less lifting of architecture with issues of identity and everyday social and political dynamics ( 'everyday-life') of community. Keywords: subjectivity, hybrid, indigeneity, post-nationalism
43
Patel, Naman, Anna Choromanska, Prashanth Krishnamurthy, and Farshad Khorrami. "A deep learning gated architecture for UGV navigation robust to sensor failures." Robotics and Autonomous Systems 116 (June 2019): 80–97. http://dx.doi.org/10.1016/j.robot.2019.03.001.
Full text
44
Shin, Michael E., Taeghyun Kang, and Sunghoon Kim. "Blackboard Architecture for Detecting and Notifying Failures for Component-Based Unmanned Systems." Journal of Intelligent & Robotic Systems 90, no. 3-4 (October 17, 2017): 571–85. http://dx.doi.org/10.1007/s10846-017-0677-4.
Full text
45
Tayeen, Abu Saleh Md, Thanh Hai Nguyen, Van Duc Nguyen, and Enrico Pontelli. "Design and Implementation of Phylotastic, a Service Architecture for Evolutionary Biology." International Journal of Software Engineering and Knowledge Engineering 30, no. 10 (October 2020): 1525–50. http://dx.doi.org/10.1142/s0218194020500382.
Full textAbstract:
Access and reuse of authoritative phylogenetic knowledge have been a longstanding challenges in the evolutionary biology community — leading to a number of research efforts (e.g. focused on interoperation, standardization of formats, and development of minimum reporting requirements). The Phylotastic project was launched to provide an answer to such challenges — as an architectural concept collaboratively designed by evolutionary biologists and computer scientists. This paper describes the first comprehensive implementation of the Phylotastic architecture, based on an open platform for Web services composition. The implementation provides a portal, which composes Web services along a fixed collection of workflows, as well as an interface to allow users to develop novel workflows. The Web services composition is guided by automated planning algorithms and built on a Web services registry and an execution monitoring engine. The platform provides resilience through seamless automated recovery from failed services.
46
Younis, Ossama, Sonia Fahmy, and Paolo Santi. "An Architecture for Robust Sensor Network Communications." International Journal of Distributed Sensor Networks 1, no. 3-4 (July 1, 2005): 305–27. http://dx.doi.org/10.1080/15501320500330786.
Full textAbstract:
Node clustering in sensor networks increases scalability, robustness, and energy-efficiency. In hostile environments, unexpected failures or attacks on cluster heads (through which communication takes place) may partition the network or degrade application performance. We propose REED (Robust Energy-Efficient Distributed clustering), for clustering sensors deployed in hostile environments in an interleaved manner with low complexity. Our primary objective is to construct a k-fault-tolerant (i.e., k-connected) clustered network, where k is a constant determined by the application. Fault tolerance is achieved by selecting k independent sets of cluster heads (i.e., cluster head overlays) on top of the physical network, so that each node can quickly switch to other cluster heads in case of failures. The independent cluster head overlays also give multiple vertex-disjoint routing paths for load balancing and security. Network lifetime is prolonged by selecting cluster heads with high residual energy and low communication cost, and periodically re-clustering the network. We prove that REED asymptotically achieves k-connectivity if certain conditions on node density are met. We also discuss inter-cluster routing and MAC layer considerations, and investigate REED clustering properties via extensive simulations.
47
Wilshusen, Richard H. "Architecture as Artifact—Part II: A Comment on Gilman." American Antiquity 54, no. 4 (October 1989): 826–33. http://dx.doi.org/10.2307/280688.
Full textAbstract:
Can architecture be treated as an artifact worthy of archaeological analysis? This is a key question that remains unanswered in Gilman's (1987) article on southwestern pit structures and pueblos. The majority of Gilman's article is a cross-cultural ethnographic overview of pit-structure and pueblo use. Gilman takes such a "big-picture" approach that when she finally presents her archaeological data it is insufficient to test her model of architectural change. More importantly, by disregarding temporal changes in prehistoric southwestern pit-structure and pueblo designs, Gilman fails to realize that pit structures and pueblos are architecturally related phenomena during the transition period that is the focus of her research. Pit structures, rather than being independent of pueblos, actually provide the construction dirt with which many of the first pueblos are built.
48
Kopec, Danny, and Suzanne Tamang. "Failures in complex systems." ACM SIGCSE Bulletin 39, no. 2 (June 2007): 180–84. http://dx.doi.org/10.1145/1272848.1272905.
Full text
49
Katti, Amogh, Giuseppe Di Fatta, Thomas Naughton, and Christian Engelmann. "Epidemic failure detection and consensus for extreme parallelism." International Journal of High Performance Computing Applications 32, no. 5 (February 1, 2017): 729–43. http://dx.doi.org/10.1177/1094342017690910.
Full textAbstract:
Future extreme-scale high-performance computing systems will be required to work under frequent component failures. The MPI Forum’s User Level Failure Mitigation proposal has introduced an operation, MPI_Comm_shrink, to synchronize the alive processes on the list of failed processes, so that applications can continue to execute even in the presence of failures by adopting algorithm-based fault tolerance techniques. This MPI_Comm_shrink operation requires a failure detection and consensus algorithm. This paper presents three novel failure detection and consensus algorithms using Gossiping. Stochastic pinging is used to quickly detect failures during the execution of the algorithm, failures are then disseminated to all the fault-free processes in the system and consensus on the failures is detected using the three consensus techniques. The proposed algorithms were implemented and tested using the Extreme-scale Simulator. The results show that the stochastic pinging detects all the failures in the system. In all the algorithms, the number of Gossip cycles to achieve global consensus scales logarithmically with system size. The second algorithm also shows better scalability in terms of memory and network bandwidth usage and a perfect synchronization in achieving global consensus. The third approach is a three-phase distributed failure detection and consensus algorithm and provides consistency guarantees even in very large and extreme-scale systems while at the same time being memory and bandwidth efficient.
50
Galaunytė, Aistė. "Soviet Standardized Single-Family House: the Failed Hope of Non-Communal Living in Postwar Lithuanian Towns." Architecture and Urban Planning 13, no. 1 (December 1, 2017): 32–37. http://dx.doi.org/10.1515/aup-2017-0004.
Full textAbstract:
Abstract The article is on the issue of standardized single-family houses introduced by the Soviet government in post-war Lithuania, which later were strictly prohibited. The relation between standardization and communist ideology and the Soviet law is analysed. The author argues that despite the significant influence of the Soviet law, standardized houses were symbols of welfare, modernist architecture and modern living. The lack and absence of them had a negative impact on the architecture of standardized houses in contemporary Lithuania.