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IEEE International Conference on Data Mining Workshops (ICDM Workshops)

作者： Li-juan Zhang Zhou-jun Li Huo-wang Chen Jian Wen National Laboratory for Parallel and Distributed Processing Changsha China School of Computer Science & Engineering Beihang University Beijing China

In this article we describe a method for selecting informative genes from microarray data. The method is based on clustering, namely, it first find similar genes, group them and then select informative genes from these groups to avoid redundancy. A new gene similarity measure based on grey relational analysis (GRA), called grey relational grade (GRG), is used in clustering. Experiments on three public data sets demonstrate the effectiveness of our method

关键词： Gene expression Data analysis Laboratories distributed processing Computer science Data engineering Signal to noise ratio Mutual information Data mining Conferences

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A Novel Conceptual Fish-like Robot Inspired by Rhinecanthus Aculeatus

A Novel Conceptual Fish-like Robot Inspired by Rhinecanthus ...

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International Conference on Control, Automation, Robotics and Vision (ICARCV)

作者： Tianjiang Hu Guangming Wang Lincheng Shen Fei Li Institute of Automation National University of Defense Technology Changsha China National Laboratory for Parallel and Distributed Processing National University of Defense Technology Changsha China

This paper proposes a novel conceptual underwater bio-robot inspired by Rhinecanthus aculeatus, which belongs to median and/or paired fin (MPF) propulsion fish and impresses researchers with agility by cooperative undulation of the dorsal-and-anal fins. Such a fish-like robot is anticipated to outperform the conventional aquatic robots in maneuverability and stability for oceanic exploitation necessities, e.g. benthonic mineral exploration. To begin with, a specimen of R. aculeatus was filmed in a glass aquarium (150cm times 50cm times 60cm) in which artificial seawater was maintained at 26 degC or so. Afterwards, we analyzed a few characteristics in morphology and locomotion with image processing and other approaches. The morphological and kinematical bionic inspirations were summarized, and in succession, we elaborately delineated the design scheme of our conceptual robotic fish including the schematic architectures, the structural and outside form, and the undulatory multi-fin propulsor

关键词： Robots Marine animals Robotics and automation Propulsion Minerals Automotive engineering Remotely operated vehicles Stability Morphology Underwater vehicles

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An Interface Theory Based Approach to Verification of Web Services

An Interface Theory Based Approach to Verification of Web Se...

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IEEE Annual International Computer Software and Applications Conference (COMPSAC)

作者： Zhenbang Chen Ji Wang Wei Dong Zhichang Qi W.l. Yeung National Laboratory for Parallel and Distributed Processing Changsha China Department of Computing and Decision Sciences Lingnan University Hong Kong China

The verification of Web services becomes a challenge in software verification. This paper presents a framework for verification of Web service interfaces at various abstraction levels. Its foundation is the interface theory for Web services, in which transaction features are incorporated. Within the framework, one may check non mutual invocation, compatibility and refinement of Web services at signature, conversation and protocol levels. At protocol level, we present a model checking approach to verifying the protocol properties in action set computation tree logic (ASCTL). The paper also discusses the integration of our framework into the Web service development

关键词： Web services Protocols Laboratories distributed processing Supply chain management Automata distributed computing Research and development Computer applications Computer interfaces

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Verifying Choreographic Descriptions of Web Services Based on CSP

Verifying Choreographic Descriptions of Web Services Based o...

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IEEE Services Computing Workshops, SCW

作者： W. L. Yeung Ji Wang Wei Dong Department of Computing and Decision Sciences Lingnan University Hong Kong China National Laboratory for Parallel and Distributed Processing Changsha Hunan China

The emerging service-oriented architectures based on Web services is fostering a new generation of intra- and inter-organizational cross-platform Web-based business applications. With the new architectures comes a new set of standards (e.g. XML, SOAP, WSDL, UDDI) for enabling self-describing interoperable Web services, as well as for modeling and implementing workflow or process-oriented Web applications. The latter kind of standards include the Web Service Business Process Execution language (BPEL) and the Web Service Choreography Description Language (WS-CDL). While BPEL supports the modeling and implementation of a particular (composite) Web service, WS-CDL can be seen as a behavioral modeling language for the collaboration between multiple parties (Web services) within the same business process. In this paper, we outline how communicating sequential processes (CSP) can be used as a formal basis for checking the behavioral consistency among the participants of a business process with respect to a choreography. The use of a model checking tool for automating the consistency checking is also discussed

关键词： Web services Process design Service oriented architecture Unified modeling language Concurrent computing distributed computing Laboratories distributed processing XML Simple object access protocol

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Data prefetching algorithm for RAM grid

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Ruan Jian Xue Bao/Journal of Software 2006年第11期17卷 2234-2244页

作者： Chu, Rui Lu, Xi-Cheng Xiao, Nong National Laboratory for Parallel and Distributed Processing Changsha 410073 China

RAM (random access memory) Grid is a new grid system aiming at memory resources sharing in wide-area network;it can improve the performance of memory intensive or IO intensive applications when lack of physical memory. Reducing or hiding the network overhead can improve the performance of RAM Grid, which lies on the overhead of network communication. In this paper, through the analysis of RAM Grid, a 'push' based prefetching mechanism is proposed for it. The corresponding prefetching algorithm, which comes from the sequential pattern mining method in data mining area, is also raised. The prefetching algorithm is evaluated and proved by trace driven simulation.

关键词： Random access storage

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A Model for Semantic Annotation and Publication of Meteorology Grid Services in SMGA

A Model for Semantic Annotation and Publication of Meteorolo...

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International Conference on Grid and Cooperative Computing Workshops (GCCW)

作者： Kaijun Ren Nong Xiao Junqiang Song Tao Chen Weimin Zhang College of Science National University of Defense Technology Changsha Hunan China National Laboratory for Parallel and Distributed Processing National University of Defense Technology Changsha Hunan China

Meteorology grid computing aims to provide scientist with seamless, reliable, secure and inexpensive access to meteorological resources. However, the vision of achieving these goals has been encountered with many challenges such as the degree of easy-to-use and the capability of seamless automation. Fortunately, the emerging semantic Web service and semantic grid technologies bring some significant solutions for the above challenges. Semantic meteorology grid architecture (SMGA) is being developed by us to support automated meteorology grid service discovery, selection, and composition. In this paper, we present a model for semantic annotation and publication of meteorology grid services by combining the expressive power of the present ontology language and the advantages of semantic Web techniques. The presented model is an initial work to support automating the discovery, selection, and workflow composition of semantically described heterogeneous meteorological services, which offers the possibility of facilitating geographically distributed meteorological scientists to resolve complex scientific problems cooperatively

关键词： Meteorology Semantic Web Grid computing Web services Economic forecasting Weather forecasting Ontologies Power generation economics Environmental economics Laboratories

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A distributed paging RAM grid system for wide-area memory sharing 06

A distributed paging RAM grid system for wide-area memory sh...

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International Symposium on parallel and distributed processing (IPDPS)

作者： Rui Chu Nong Xiao Yongzhen Zhuang Yunhao Liu Xicheng Lu Distributed Processing National Key Laboratory for Parallel Changsha Hunan China Science and Technology Hong Kong University Kowloon Hong Kong China

ISBN: (纸本)9781424400546

Memory-intensive applications often suffer from the poor performance of disk swapping when memory is inadequate. Remote memory sharing schemes, which provide a remote memory that is faster than the local hard disk, are able to improve the performance of such applications. Due to the limitation of being applicable within single clusters only, however, most of the previous remote memory mechanisms, such as the network memory scheme, fail to be extendable into a large scale, distributed, heterogeneous, and dynamic environment. In this work, we propose a service-oriented grid memory sharing scheme, distributed paging RAM grid (DPRG). We study the properties and criteria of large scale memory sharing, and then design major operations and optimizations to fit the usage of grid systems. We collect trace from our grid environment, and evaluate DPRG through comprehensive trace-driven simulations. Results show that DPRG significantly outperforms existing remote memory sharing schemes and supports grid computing applications effectively

关键词： Read-write memory Random access memory Hard disks Meteorology Large-scale systems Grid computing Scientific computing Computer networks distributed computing Laboratories

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Message from the general co-chairs

Proceedings - Fifth International Conference on Grid and Coo...

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Proceedings - Fifth International Conference on Grid and Cooperative Computing, GCC 2006 2006年 11-11页

作者： Lu, Xicheng Fortes, Jose A. B. Ni, Lionel M. National Laboratory for Parallel and Distributed Processing China University of Florida United States Hong Kong University of Science and Technology Hong Kong Hong Kong

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Memory service based memory sharing grid system

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Jisuanji Xuebao/Chinese Journal of Computers 2006年第7期29卷 1225-1233页

作者： Chu, Rui Xiao, Nong Lu, Xi-Cheng National Key Laboratory for Parallel and Distributed Processing National University of Defense Technology Changsha 410073 China

Many scientific computing applications demand a great amount of memory, which are usually run on supercomputers with large physical memory. The applications whose complete time is affected by memory capacity, is usually called memory-intensive applications. Many disk 10 operations will be caused by memory-intensive applications due to insufficient physical memory of computing environment, which depress the system performance dramatically. Traditional network memory or memory server schemes try to share free memory of idle nodes in the cluster, while it is often influenced by heavy cluster loading or interior network congestion. Combining the network memory with current service computing and grid computing technology, a memory service based memory sharing grid system named RAM Grid, is proposed. RAM grid improve traditional network memory scheme, and extend the application area of grid computing. As one of the major computing resources, memory can be shared on the Internet through RAM grid, such as computing power and disk storage being shared through computational grid and data grid. The system criteria and properties are analyzed. One of the system schemes is also proposed in detail. Through the real trace based simulation, the performance of RAM Grid is evaluated and proved better than traditional network memory or disk IO obviously.

关键词： Random access storage

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Message from the program co-chairs

Proceedings - Fifth International Conference on Grid and Coo...

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Proceedings - Fifth International Conference on Grid and Cooperative Computing, GCC 2006 2006年 12-12页

作者： Xiao, Wong Buyya, Rajkumar Liu, Yunhao National Laboratory for Parallel and Distributed Processing Changsha China GRIDS Lab. Dept. of Computer Science and Software Engineering University of Melbourne Australia Dept. of Computer Science Hong Kong University of Science and Technology Hong Kong Hong Kong

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