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21st ACM International Conference on Multimedia, MM 2013

作者： Spampinato, Concetto Mezaris, Vasileios Van Ossenbruggen, Jacco Dep. of Electrical Electronics and Computer Engineering University of Catania 95125 Catania Italy Centre for Research and Technology Hellas Information Technologies Inst. Thermi 57001 Greece Centrum Wiskunde and Informatica 1098 XG Amsterdam NL Netherlands

ISBN: (纸本)9781450324045

The 2nd ACM InternationalWorkshop on Multimedia Analysis for Ecological Data (MAED'13) is held as part of ACM Multimedia 2013. MAED'13, following the first workshop of the MAED series (MAED'12) that was held as part of ACM Multimedia 2012, is concerned with the processing, inter- pretation, and visualization of ecology-related multimedia content with the aim to support biologists in their investi- gations for analyzing and monitoring natural environments. Copyright © 2013 ACM.

关键词： Ecology

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An Energy-Effective Routing Protocol Efficiently Constructs Cluster Topology for WSN

An Energy-Effective Routing Protocol Efficiently Constructs ...

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International Conference on Instrumentation, Measurement, computer, Communication and Control (IMCCC)

作者： Yuzhu Liang Ai-Li Zhang Yong-Zhen Li Dep. of Computer Science & Technology Yanbian University Yanji China Yanbian University of Science and Technology Yanji Jilin CN

ISBN: (纸本)9781479913930

BACR is a new hierarchical routing protocol based on LEACH designed for WSN. It introduced energy-involved voting and back-off announcement to control the number of cluster-heads to vary within a small range and evenly locate the cluster-heads thus to prolong the network lifetime. This work also employed the technology of cluster reappointment to minimize the energy consumed in cluster set-up phase so as to extend the lifetime further. Experiments on MATLAB have proved this more effective than LEACH.

关键词： Wireless sensor networks Routing protocols Routing Base stations Clustering algorithms Computational modeling

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On Rapid Releases and Software Testing

On Rapid Releases and Software Testing

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International Conference on Software Maintenance (ICSM)

作者： Mika V. Mäntylä Foutse Khomh Bram Adams Emelie Engström Kai Petersen Dep. of Computer Science and Engineering Aalto University Finland SWAT-MCIS École Polytechnique de Montréal Ouébec Canada Dep. of Computer Science Lund University Sweden School of Computing Blekinge Institute of Technology

ISBN: (纸本)9781467352185

Large open and closed source organizations like Google, Facebook and Mozilla are migrating their products towards rapid releases. While this allows faster time-to-market and user feedback, it also implies less time for testing and bug fixing. Since initial research results indeed show that rapid releases fix proportionally less reported bugs than traditional releases, this paper investigates the changes in software testing effort after moving to rapid releases. We analyze the results of 312,502 execution runs of the 1,547 mostly manual system level test cases of Mozilla Fire fox from 2006 to 2012 (5 major traditional and 9 major rapid releases), and triangulated our findings with a Mozilla QA engineer. In rapid releases, testing has a narrower scope that enables deeper investigation of the features and regressions with the highest risk, while traditional releases run the whole test suite. Furthermore, rapid releases make it more difficult to build a large testing community, forcing Mozilla to increase contractor resources in order to sustain testing for rapid releases.

关键词： computer bugs Measurement Software Software testing Google Browsers

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HotCity: Enhancing ubiquitous maps with social context heatmaps 13

HotCity: Enhancing ubiquitous maps with social context heatm...

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12th International Conference on Mobile and Ubiquitous Multimedia, MUM 2013

作者： Komninos, Andreas Besharat, Jeries Ferreira, Denzil Garofalakis, John University of Strathclyde 26 Richmond St. Glasgow G1 1XH United Kingdom Computer Technology Institute and Press University of Patras Rion 26500 Greece Dep. CS and Engineering University of Oulu Finland

ISBN: (纸本)9781450326483

In this paper we present HotCity, a service that demonstrates how collecting and mining the interactions that users make with the urban environment through social networks, can help tourists better plan activities, through sharing the collectively generated social context of a smart, connected city, as a background layer to mapped POI. The data for our service stems from the collection and analysis of 1-month worth of collected human-physical environment interactions (i.e., Foursquare check-ins) data for Oulu, a medium-sized city in Finland, where our service is dep.oyed in ubiquitous public displays. Our analysis demonstrates that a good model of the city's dynamics can be built despite the low popularity of Foursquare amongst locals. Our findings from the field-based trial of the HotCity service yield several useful insights and important contributions. We found that the method of using a heatmap as an intermediate layer of environmental context does not negatively affect the experience of users at the cognitive level, compared with a more traditional map and POI type of interface, where temporal aspects of context are not present. In the concluding sections, we discuss how this cloud-based service can also be used in a variety of ubiquitous computing platforms. © 2013 ACM.

关键词： Ubiquitous computing

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A study on time-varying partially connected topologies for the particle swarm

A study on time-varying partially connected topologies for t...

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2013 IEEE Congress on Evolutionary Computation, CEC 2013

作者： Fernandes, Carlos M. Rosa, Agostinho C. Laredo, Juan L.J. Cotta, Carlos Merelo, Juan Julian Dep. of Electrotechnical Engineering Laseeb-ISR-IST Technical Univ. of Lisbon Lisbon Portugal University of Luxembourg Luxembourg Luxembourg Dept. Lenguages y Ciencias de la Computación University of Málaga Spain Department of Computer Architecture University of Granada Spain

ISBN: (纸本)9781479904549

This paper presents a study on the effects of dynamic and partially connected 2-dimensional topologies on the performance of the particle swarm optimization (PSO). The swarm is positioned on 2-dimensional grids of nodes and the particles move through the nodes according to a simple rule. Meanwhile, the von Neumann neighborhood is used to decide which particles influence each individual. Structures with growing size are tested on a classical benchmark and compared to several configurations such as lbest, gbest and the standard von Neumann configuration. The results show that the partially connected grids with von Neumann neighborhood structure performs more consistently when compared to lbest, gbest and the standard von Neumann topology. © 2013 IEEE.

关键词： Topology

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Partially connected topologies for particle swarm

Partially connected topologies for particle swarm

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15th Annual Conference on Genetic and Evolutionary Computation, GECCO 2013

作者： Fernandes, Carlos M. Merelo, Juan Julián Laredo, Juan L.J. Cotta, Carlos Rosa, Agostinho C. Department of Computer Architecture University of Granada Granada Spain University of Luxembourg Luxembourg Dept. Lenguages Y Ciencias de la Computación University of Málaga Spain Dep. of Electrotechnical Engineering Laseeb-ISR-IST Technical Univ.of Lisbon Lisbon Portugal

ISBN: (纸本)9781450319645

The effects of dynamic and partially connected 2-dimensional topologies on the particle swarm are studied. The particles are positioned on 2-dimensional grids of nodes, where they move according to a simple rule. The von Neumann neighborhood is used to decide which particles influence each individual. Structures with growing size are tested on a classical benchmark. The partially connected grids with von Neumann neighborhood structure perform more consistently than other strategies.

关键词： Topology

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Comparision of Multi-Carrier Techniques in Seven-Level Asymmetric Cascade Multilevel Inverter

Comparision of Multi-Carrier Techniques in Seven-Level Asymm...

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International Conference on Power Engineering, Energy and Electrical Drives

作者： Ilhami COLAK Ersan KABALCI Gokhan KEVEN Faculty of Technology Department of Electric & Electronic Engineering Gazi University Ankara Turkey Faculty of Engineering & Architecture Dep. of Electrical & Electronic Eng. Nevsehir University Nevsehir Turkey Vocational College of Haci Bekta? Veli Dep. of Computer Programming Nevsehir University Nevsehir Turkey

ISBN: (纸本)9781467363914

The multilevel inverters (MLIs) are classified into three topologies such as Diode Clamped, Flying Capacitor and Cascade Multilevel Inverter (CMLI). CMLI topologies include two kind of structure that is named symmetric and asymmetric topologies. Asymmetric Cascade MLI (ACMLI) topologies consist of unequal DC sources. Many modulation techniques have been used in ACMLI topology such as Multi-Carrier PWM (MC-PWM), Space Vector PWM and Selective Harmonic PWM. The MC-PWM technique is achieved by four different types. In this study, MC-PWM techniques which are named Phase Disposition PWM, Phase Opposition Disposition PWM, Alternate Phase Opposition Disposition PWM and Phase Shifted PWM have been compared. It is uncovered that Phase Opposition Disposition PWM technique is more convenient in terms of Total Harmonic Distortion of output voltage and current signals and in terms of the quality of power factor in ACMLI which is performed in this study.

关键词： asymmetric cascade multilevel inverter multi carrier PWM THD frequency index power factor

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A possible Approach for Determining Safety Parameters for Safety Integrated Circuits

A possible Approach for Determining Safety Parameters for Sa...

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International Conference on Information, Communication and Automation Technologies

作者： Josef Borcsok Peter Holub University Kassel Dep. of Computer Architecture and System Programming

ISBN: (纸本)9781479904297

The approach for calculating the failure rate of a safety integrated circuit is used if the number of available test patterns is not sufficient. The safety integrated circuit can be structured in function blocks, that can be functionally compared to semiconductors with discrete structure. Failure models already known and applied for discrete semiconductors can be used to determine the failure rate of the individual function blocks. These models with their known failure rates serve as a reference for the safety integrated circuit function blocks. An advantage of this approach is that the internal safety integrated circuit structure can be taken into consideration when calculating the failure probability. The paper is based on the principles of the generic standard IEC 61508 Edition 2, 2010-04. Because new technologies lack field experience and a basis for evaluating certain risks, a conservative approach to determining failure rates has been emphasized as set forth in SN 29500.

关键词： Safety integrated circuit Failure rate Probability of failure IEC 61508 Arrhenius eq. X~2 distribution Reliability block diagram

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SPADE: A Framework for After-Disaster Adaptive Recovery Processes

SPADE: A Framework for After-Disaster Adaptive Recovery Proc...

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International IEEE Conference on Signal-Image Technologies and Internet-Based System

作者： Ernesto Damiani Fulvio Frati Babiga Birregah Computer Science Department Universita degli Studi di Milano Crema Italy Dep. of Operational Research University of Technology of Troyes France

ISBN: (纸本)9781479932122

Needs and offers assessment and matching system can be an essential component of the recovery of the communities to recover from the aftermath of natural disasters. In this paper we present the design of a framework called SPADE (Social Platform for After-Disaster matching of Emergent needs and offers) that leverages on the capacity of self-organization of communities of actors involved in crisis management, proposing advanced algorithms and techniques for need/offer matching.

关键词： Needs/Offers Matching Disaster Recovery Adaptive Ontologies business continuity RECOVERY PROCESS crisis management Leverage Frameworks Natural Disasters actor

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Message from the MAED'13 workshop chairs

MAED 2013 - Proceedings of the 2nd ACM International Worksho...

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MAED 2013 - Proceedings of the 2nd ACM International Workshop on Multimedia Analysis for Ecological Data 2013年 iii页

作者： Spampinato, Concetto Mezaris, Vasileios Van Ossenbruggen, Jacco Dep. of Electrical Electronics and Computer Engineering University of Catania Italy Centre for Research and Technology Hellas Information Technologies Institute Greece Centrum Wiskunde and Informatica Netherlands

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