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Distributed and cooperative service platforms for home network services

Journal of the National Institute of Information and Communications Technology 2007年第3期54卷 155-164页

作者： Yamazaki, Tatsuya Sawada, Atsushi Nishimura, Toshikazu Takaoka, Masanori Tajika, Yosuke Minoh, Michihiko Universal City Group Knowledge Creating Communication Research Center College of Information Science and Engineering Ritsumeikan University Department of Mathematical Sciences and Information Engineering Nanzan University NCOS Laboratory NEC Communication Systems Ltd. Academic Center for Computing and Media Studies Kyoto University

In the UKARI (Universal Knowledgeable Architecture for Real-life appliances) project, we studied and developed distributed and cooperative service platforms for home network services, which provide services by cooperating functions from networked appliances (NAs). The NAs include consumer appliances as well as sensors, robots, and so on. Main research results were "UKARI-Core" and "UKARI-Kernel", which constitute the platforms. UKARI-Core is a middleware with must and core modules of distributed function cooperation. UKARI-Kernel is, moreover, another middleware as an extension of UKARI-Core with additional functions for flexible user adaptation. We implemented the middleware into various kinds of real appliances and constructed home network services in a real environment to evaluate the efficiency of the proposed service platforms.

关键词： Distributed computer systems

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Performance of a rack of liquid-cooled servers

Performance of a rack of liquid-cooled servers

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2007 Winter Meeting of the American Society of Heating, Refrigerating and Air-Conditioning Engineers

作者： Cader, Tahir McAllister, Herley Westra, Levi Regimbal, Kevin Marquez, Andres Government Computing Group Isothermal Systems Research Liberty Lake WA Applied Computer Science Department Computational Sciences and Mathematics Division Pacific North-west National Laboratory Richland WA

Electronics densification is continuing at an unrelenting pace at the server, rack, and facility level. With increasing facility density levels, airflow management has become a major challenge and concern. In an effort to deal with the resulting thermal management challenges, manufacturers are increasingly turning to liquid cooling as a practical solution. The majority of manufacturers have turned to liquid-cooled enclosed racks or rear-door heat exchangers, in which chilled water is delivered to the racks. Some manufacturers are now looking to cold plate cooling solutions that take the heat directly off problem components, such as the CPUs, to get it directly out of the facility. This paper describes work done at the Pacific Northwest National Labs (PNNL) under a department of Energy-funded program titled "Energy Smart Data Center." An 8.2 kW (27,980 Btu/h) rack of HP rx2600 2U servers has been converted from air-cooling to liquid spray cooling (CPUs only). The rack has been integrated into PNNL's main cluster and subjected to a suite of acceptance tests. Under the testing, the spray-cooled CPUs ran an average of 10°C (18°F) cooler than the air-cooled CPUs. Other peripheral devices, such as the memory D1MMs, ran an average of 8°C (14.4°F) cooler, and the power pod board was measured at 15°C(27°F) cooler. Since installation in July 2005, the rack has been undergoing a one-year uptime and reliability investigation. As part of the investigation, the rack has been subjected to monthly robustness testing and ongoing performance evaluation while running applications such as High Performance Linpack, parts of the NASA NPB-2 Benchmark Suite, and NW Chem. The rack has undergone three months' worth of robustness testing with no major events. Including the robustness testing, the rack uptime is at 95.54% over 299 days. While undergoing application testing, no computational performance differences have been observed between the liquid-cooled and standard air-cooled racks. A sm

关键词： Electronic equipment

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A CAN and OSEK NM based siren for automobiles

A CAN and OSEK NM based siren for automobiles

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2007 IEEE International Conference on Networking, Sensing and Control, ICNSC'07

作者： Qiao, Xin Wang, Zhixue Sun, Yuan He, Feng Wang, Fei-Yue IEEE Key Laboratory of Complex Systems and Intelligence Science Institute of Automation Chinese Academy of Sciences CO 100080 Beijing China Institute of Computing Chinese Academy of Sciences CO 100080 Beijing China Key Laboratory for Complex Systems and Intelligence Science Chinese Academy of Sciences Beijing China Program for Advanced Research in Complex Systems Department of Systems and Industrial Engineering University of Arizona Tucson AZ 85719 United States

ISBN: (纸本)1424410762

Today, more and more Electronic Control Units have been installed in vehicle, and Controller Area Network is one of the most widely used networks to connect these ECUs, also the architecture of OSEK is increasingly employed into the design of individual ECU and the network. In this paper, we propose a new framework to design the ECU with limited-storage-space. In the framework, an infinite cycle acts as a mainframe, and the code conforming to OSEK NM is inserted into the cycle. A siren of vehicle is developed with this method, and a Hardware-In-Loop test is accomplished. The results show that the framework is available, and the real-time performance of the siren is satisfied. © 2007 IEEE.

关键词： Intelligent vehicle highway systems

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DejaVu: Transparent User-Level Checkpointing, Migration, and Recovery for Distributed systems

DejaVu: Transparent User-Level Checkpointing, Migration, and...

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International Symposium on Parallel and Distributed Processing (IPDPS)

作者： Joseph F. Ruscio Michael A. Heffner Srinidhi Varadarajan Department of Computer Science Computing Systems Research Laboratory Virginia Polytechnic Institute and State University VA USA Evergrid VA USA

In this paper, we present a new fault tolerance system called DejaVu for transparent and automatic checkpointing, migration, and recovery of parallel and distributed applications. DejaVu provides a transparent parallel checkpointing and recovery mechanism that recovers from any combination of systems failures without any modification to parallel applications or the OS. It uses a new runtime mechanism for transparent incremental checkpointing that captures the least amount of state needed to maintain global consistency and provides a novel communication architecture that enables transparent migration of existing MPI codes, without source-code modifications. Performance results from the production-ready implementation show less than 5% overhead in real-world parallel applications with large memory footprints.

关键词： Checkpointing Application software Concurrent computing Runtime Stability Computer networks Distributed computing Laboratories Computer science Fault tolerant systems

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Fractal scale descriptors based on 3d wavelet moments for 3d objects

Fractal scale descriptors based on 3d wavelet moments for 3d...

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International Conference on Wavelet Analysis and Pattern Recognition (ICWAPR)

作者： Li Cui Ying Li Dong Xu Hua Li School of Mathematics Sciences Beijing Normal University Beijing China College of Computer Science and Technology Jilin University Changchun China Department of Computer Science and Technology State Key Laboratory of Intelligent Technology and Systems Tsinghua University Beijing China Graduate University of Chinese Academy of Sciences Beijing National Research Center for Intelligent Computing Systems Institute of Computing Technology Chinese Academy of Sciences Beijing Chinese Academy of Sciences Beijing China National Research Center for Intelligent Computing Systems Institute of Computing Technology Chinese Academy of Sciences Beijing China

In this paper, based on 3d wavelet moments we present a new method called fractal scale descriptors for 3d objects. Just like wavelet moments, they are still robust to translation, rotation and scale, and have the multi-resolution features in the radial direction, which can handle noise to some extent and provide multi-level features to satisfy various requirements. Furthermore the new method is prior to the original 3d wavelet moments in computational complexity by using the fast algorithm of the spherical harmonics together with the Mallat algorithm of the wavelets.

关键词： Fractals Wavelet analysis Pattern analysis Pattern recognition

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Large-scale semidefinite programs in electronic structure calculation

Large-scale semidefinite programs in electronic structure ca...

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作者： Fukuda, Mituhiro Braams, Bastiaan J. Nakata, Maho Overton, Michael L. Percus, Jerome K. Yamashita, Makoto Zhao, Zhengji Department of Mathematical and Computing Sciences Tokyo Institute of Technology 2-12-1-W8-29 Oh-okayama Meguro-ku Tokyo 152-8552 Japan Department of Mathematics and Computer Science Emory University Atlanta GA 30322 United States Department of Applied Chemistry University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan Department of Computer Science Courant Institute of Mathematical Sciences New York University New York NY 10012 United States Courant Institute of Mathematical Sciences Department of Physics New York University New York NY 10012 United States Department of Information Systems Creation Kanagawa University 3-27-1 Rokkakubashi Yokohama-shi Kanagawa 221-8686 Japan High Performance Computing Research Department Lawrence Berkeley National Laboratory Mail Stop 50F1650 1 Cyclotron Road Berkeley CA 94720 United States

It has been a long-time dream in electronic structure theory in physical chemistry/chemical physics to compute ground state energies of atomic and molecular systems by employing a variational approach in which the two-body reduced density matrix (RDM) is the unknown variable. Realization of the RDM approach has benefited greatly from recent developments in semidefinite programming (SDP). We present the actual state of this new application of SDP as well as the formulation of these SDPs, which can be arbitrarily large. Numerical results using parallel computation on high performance computers are given. The RDM method has several advantages including robustness and provision of high accuracy compared to traditional electronic structure methods, although its computational time and memory consumption are still extremely large. © Springer-Verlag 2007.

关键词： Physical chemistry

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Comparison of seven approaches for holter ECG clustering and classification

Comparison of seven approaches for holter ECG clustering and...

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29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBS 2007), vol.10

作者： Vaclav Chudacek Milan Petrik George Georgoulas Miroslav Cepek Lenka Lhotska Chrysostomos Stylios Gerstner laboratory at Department of Cybernetics Czech Technical University Czech Republic Czech Republic Department of Cybernetics Center for Machine Perception Czech Technical University Czech Republic Intelligent Control Systems Laboratory Georgia Technology Research Institute Atlanta USA Czech Republic Department of Computer Science and Engineering Neural Computing Group Czech Technical University Czech Republic Czech Republic Department of Cybernetics Gerstner Laboratory Czech Technical University Czech Republic Department of Informatics and Communications Technology TEI Epirus Artas Greece

In this work we present a comparative study, testing selected methods for clustering and classification of holter electrocardiogram (ECG). More specifically we focus on the task of discriminating between normal 'N' beats and premature ventricular 'V' beats. Some of the tested methods represent the state of the art in pattern analysis, while others are novel algorithms developed by us. All the algorithms were tested on the same datasets, namely the MIT-BIH and the AHA databases. The results for all the employed methods are compared and evaluated using the measures of sensitivity and specificity.

关键词： Electrocardiography Testing Decision trees Laboratories Cybernetics Sensitivity and specificity Heart rate variability Clustering algorithms Spatial databases Computational complexity

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Advancing translational research with the Semantic Web

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BMC Bioinformatics 2007年第SUPPL. 3期8卷 1-16页

作者： Ruttenberg, Alan Clark, Tim Bug, William Samwald, Matthias Bodenreider, Olivier Chen, Helen Doherty, Donald Forsberg, Kerstin Gao, Yong Kashyap, Vipul Kinoshita, June Luciano, Joanne Marshall, Scott M. Ogbuji, Chimezie Rees, Jonathan Stephens, Susie Wong, Gwendolyn T. Wu, Elizabeth Zaccagnini, Davide Hongsermeier, Tonya Neumann, Eric Herman, Ivan Cheung, Kei-Hoi Millennium Pharmaceuticals Cambridge MA United States Initiative in Innovative Computing Harvard University Cambridge MA United States Laboratory for Bioimaging and Anatomical Informatics Department of Neurobiology and Anatomy Drexel University College of Medicine Philadelphia PA United States Section on Medical Expert and Knowledge-Based Systems Medical University of Vienna Vienna Austria National Library of Medicine Bethesda MD United States Agfa Healthcare Waterloo ON Canada Brainstage Research Pittsburgh PA United States AstraZeneca Mölndal Sweden MassGeneral Institute for Neurodegenerative Disease Massachusetts General Hospital Charlestown MA United States Partners HealthCare System Wellesley MA United States Alzheimer Research Forum Boston MA United States Harvard Medical School Boston MA United States Integrative Bioinformatics Unit University of Amsterdam Amsterdam Netherlands Cleveland Clinic Foundation Cleveland OH United States Science Commons Cambridge MA United States Oracle Burlington MA United States Language and Computing Reston VA United States Teranode Corporation Seattle WA United States New Haven CT United States Center for Medical Informatics Yale University School of Medicine New Haven CT United States

Background: A fundamental goal of the U.S. National Institute of Health (NIH) "Roadmap" is to strengthen Translational research, defined as the movement of discoveries in basic research to application at the clinical level. A significant barrier to translational research is the lack of uniformly structured data across related biomedical domains. The Semantic Web is an extension of the current Web that enables navigation and meaningful use of digital resources by automatic processes. It is based on common formats that support aggregation and integration of data drawn from diverse sources. A variety of technologies have been built on this foundation that, together, support identifying, representing, and reasoning across a wide range of biomedical data. The Semantic Web Health Care and Life sciences Interest Group (HCLSIG), set up within the framework of the World Wide Web Consortium, was launched to explore the application of these technologies in a variety of areas. Subgroups focus on making biomedical data available in RDF, working with biomedical ontologies, prototyping clinical decision support systems, working on drug safety and efficacy communication, and supporting disease researchers navigating and annotating the large amount of potentially relevant literature. Results: We present a scenario that shows the value of the information environment the Semantic Web can support for aiding neuroscience researchers. We then report on several projects by members of the HCLSIG, in the process illustrating the range of Semantic Web technologies that have applications in areas of biomedicine. Conclusion: Semantic Web technologies present both promise and challenges. Current tools and standards are already adequate to implement components of the bench-to-bedside vision. On the other hand, these technologies are young. Gaps in standards and implementations still exist and adoption is limited by typical problems with early technology, such as the need for a critical mass of p

关键词： Clinical research

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A Behavior-Based Architecture for Realistic Autonomous Ship Control

A Behavior-Based Architecture for Realistic Autonomous Ship ...

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IEEE Symposium on Computational Intelligence and Games, CIG

作者： Adam Olenderski Monica Nicolescu Sushil J. Louis Robotics Research Laboratory Department of Computer Science and Engineering University of Nevada Reno USA Evolutionary Computing Systems Laboratory Department of Computer Science and Engineering University of Nevada Reno USA

Game environments provide a good domain for serious simulations such as those used in training navy conning officers. Currently, a typical training scenario requires multiple personnel to play each of the boats and thus is expensive. We propose an approach to addressing this issue by developing intelligent, autonomous controllers for each boat. Significant challenges toward achieving these goals are the realism of behavior exhibited by the automated boats and their realtime response to change. In this paper we describe a control architecture that enables the real-time response of boats and the repertoire of realistic behaviors we developed for this application. We demonstrate the capabilities of our system with experimental results

关键词： Marine vehicles Boats Automatic control Personnel Robot kinematics Navigation Computer architecture Computer science Robustness Costs

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Exploring Applicability of Grid Technologies to Net Centric "Edge" systems

Exploring Applicability of Grid Technologies to Net Centric ...

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Conference on Digital Avionics systems (DASC)

作者： Sumit Ray Madhusudhan Govindaraju BAE Systems Avionics Johnson NY USA Grid Computing Research Laboratory Department of Computer Science State University of New York Binghamton NY USA

Scientific grids are often characterized by an infrastructure made up of high speed and reliable networks that connect heterogeneous and distributed compute and storage devices. This is in stark contrast to the concept behind the global information grid (GIG). The GIG is an interconnected information transfer infrastructure meant to provide seamless interoperability and information dominance to the war-fighter. This paper explores the applicability of the Web services based grid technologies for monitoring and discovery, workflow, and QoS, to the net centric "edge" applications on the GIG. We discuss the salient features of current grid technologies, along with examples wherever applicable, highlight the ideas that can be readily utilized for "edge" systems, and point out the gap that exists for other required features

关键词： Web services Quality of service Grid computing Joining processes Resource management Monitoring Military computing Computer networks Quality management Cities and towns

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