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IEEE International Conference on Systems, Man and Cybernetics

作者： Kaushik Roy Prabir Bhattacharya Computer Science & Software Engineering Department Concordia University Montreal QUE Canada Concordia Institute for Information Systems Engineering Concordia University Montreal QUE Canada Canada Research Chair Tier I Canada

We propose an improved iris recognition method for person identification using an iris segmentation approach based on chain code and zigzag collarette area with support vector machine (SVM). The zigzag collarette area is selected as a personal identification pattern which captures only the most important areas of iris complex pattern and better recognition accuracy is achieved. The idea to use the zigzag collarette area is that it is insensitive to the pupil dilation and usually not affected by eyelids or eyelashes. The deterministic feature sequence is extracted from iris images using Gabor wavelet technique and used to train SVM as iris classifiers. The traditional SVM is modified as asymmetrical SVM to treat False Accept and False Reject differently to satisfy several security requirements. The parameters of SVM are tuned to improve overall system performance. Our experimental results also indicate that the performance of SVM as a classifier is far better than the performance of backpropagation neural network (BPNN), K-nearest neighbor (KNN), Hamming and Mahalanobis distance. The proposed innovative technique is computationally effective as well as reliable in term of recognition rate of 99.56%.

关键词： Iris recognition Support vector machines Support vector machine classification Pattern recognition Eyelids Eyelashes Feature extraction System performance Backpropagation Neural networks

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Method of Petri net synthesis and its application in system modeling

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Xitong Fangzhen Xuebao / Journal of System Simulation 2006年第2期18卷 271-277页

作者： Xia, Chuan-Liang Department of Computer Science Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing 100080 China Department of Computer Science and Technology Shandong Institute of Architecture and Engineering Jinan 250014 China

A scheme was obtained using synthesis of Petri nets sharing a kind of subnet, according to process of several enterprises sharing a plant to produce some product. First, the Petri net model of single enterprise in sharing a plant to produce some product was set up. Second, the global Petri net model was obtained through using shared subnet synthesis method. Using the global Petri net model people can actualize synchronization and save resources. Several conditions were proposed for the synthesis net of free choice nets (FC) {asymmetric choice nets (AC)} is a FC net {AC net}. Some conditions of the structural liveness preservation by the shared subnet synthesis of Petri nets were obtained. These results are useful for studying the properties of Petri synthesis nets and establishing models for large complex system.

关键词： Petri nets Structural liveness Synthesis System modeling

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3D information access space based on multifacet database visualization

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Systems and computers in Japan 2006年第8期37卷 13-23页

作者： Ohigashi, Makoto Tanaka, Yuzuru Meme Media Laboratory Hokkaido University Sapporo 060-0808 Japan Graduate School of Information Science and Technology Hokkaido University Sapporo 060-0808 Japan Graduate School of Information Science and Technology Hokkaido University IPSJ Department of Computer Architecture Meme Media Laboratory Hokkaido University National Institute of Informatics

In order to access target information while getting an overview of the entirety of a large-scale database, a search must be carried out in parallel with various modifications to the frame of reference and dynamic organization of the information. In this research, this type of database search is realized through an information access space dynamically constructed of hyperlinks based on an arbitrary frame of reference. The authors propose a new concept and structure for the frames of reference and develop a mechanism for dynamically linking individual database records with multiple information access spaces, dynamically constructed on the basis of declarative definitions of these frames of reference. The authors also provide a three-dimensional interface for editing frames of reference and for spatial navigation threaded by these links. These operations correspond to query processing by narrowing down the subject tables and joining multiple tables;the user can gradually narrow his focus and arrive at the target information by dynamically modifying his frame of reference and repeating spatial movements. In this paper, a three-dimensional interface is developed and database searches using that interface are evaluated;it is shown that this technique makes it possible to quickly access target information. © 2006 Wiley Periodicals, Inc.

关键词： Database systems

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A method to integrate, assess and characterize the protein-protein interactions

A method to integrate, assess and characterize the protein-p...

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IEEE Symposium on Computational Intelligence and Bioinformatics and Computational Biology (CIBCB)

作者： Fa Zhang Lin Xu Jingchun Chen Zhiyong Liu Bo Yuan Key Laboratory of Computer System and architecture the Institute of Computing Technology Chinese Academy and Sciences China Graduate School Chinese Academy and Sciences China Department of Biomedical Informatics Ohio State Uinversity USA National Natural Science Foundation China

Recently, large-scale protein-protein interactions were recovered using the similar two-hybrid system for the model systems. This information allows us to investigate the protein interaction network from a systematic point of view. However, experimentally determined interactions are susceptible to errors. A previous assessment estimated that only ~10% of the interactions can be supported by more than one independent experiment, and about half of the interactions may be false positives. These false positives might unnecessarily link unrelated proteins, resulting in huge apparent interaction clusters, which complicate elucidation for the biological importance of these interactions. Address this problem, we present an approach to integrate, assess and characterize all available protein-protein interactions in model organisms yeast and fly. We first integrate all available protein-protein interaction databases of yeast and fly, and merge all the datasets. We then use machine learning techniques to score the reliability for each interaction, and to rigorously validate the scoring scheme of yeast protein-protein interactions from different aspects. Our results show that this scoring scheme provides a good basis for selecting reliable protein-protein interaction dataset

关键词： Proteins Fungi Databases Electronics packaging Machine learning Genetics Laboratories Biomedical computing computer architecture Biomedical informatics

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Content-based 3-D Shape Retrieval for Pervasive Computing

Content-based 3-D Shape Retrieval for Pervasive Computing

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International Conference on Pervasive Computing and Applications (ICPCA)

作者： Dong Xu Hua Li Zongkai Lin Chinese Academy of Sciences China Key Laboratory of Intelligent Information Processing Chinese Academy of Sciences Key Laboratory of Computer System and Architecture Institute of Computing Technology Chinese Academy of Science National Research Center for Intelligent Computing Systems Institute of Computing Technology Chinese Academy of Science. lihua@*** Key Laboratory of Intelligent Information Processing Chinese Academy and Sciences China

3D models are a new kind of cross-media resource which can be frequently seen in the network. Since the amount of them is very huge now, content-based retrieval can help to recognize a certain object or retrieve similar ones from the giant database. This paper presents a new method for deriving 3D moment invariants and uses them as shape descriptors for the representation of 3D models. They are insensitive to surface noise and can be used in pervasive environment conveniently. We also illustrate how to build up experimental system and simulate 3D shape retrieval in wireless environment

关键词： Shape Content based retrieval Pervasive computing Information retrieval Humans Internet Application software Laboratories Intelligent networks computer networks

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Overview of research and development on seamless networking technologies

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Journal of the National institute of Information and Communications Technology 2006年第4期53卷 91-100页

作者： Morikawa, Hiroyuki Inoue, Masugi Hasegaw, Mikio Murakami, Homare Mahmud, Khaled Ryoki, Nobuo Pyo, Chang Woo Tran, Ha Nguyen Minami, Masateru Teraoka, Fumio Department of Frontier Informatics Graduate School of Frontier Sciences University of Tokyo Ubiquitous Mobile Communications Group New Generation Wireless Communications Research Center North South University Bangladesh Department of Electronic Engineering Faculty of Engineering Shibaura Institute of Technology Network Architecture Group New Generation Network Research Center Kyushu Research Center Collaborative Research Management Group Department of Information and Computer Science Faculty of Science and Technology Keio University

National institute of Information and Communications Technology of Japan (NICT) completed a project on new-generation mobile communications networks for beyond 3G or 4G in March 2006. This paper presents our vision of new-generation mobile communications networks from networking perspective and their capabilities to be offered: fast and large-capacity handover, cross-network handover, cross-device handover, and interworking between real and cyber worlds. Then, Metro Mobile Ring network technology for the first capability, MIRAI architecture for the second and third capabilities, and other works are presented.

关键词： Research and development management

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Speedup techniques utilized in modern SAT solvers - An analysis in the MIRA environment

Speedup techniques utilized in modern SAT solvers - An analy...

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8th International Conference on Theory and Applications of Satisfiability Testing, SAT 2005

作者： Lewis, Matthew D. T. Schubert, Tobias Becker, Bernd W. Department of Computer Architecture Institute of Computer Science Albert-Ludwigs-University of Freiburg Germany

This paper describes and compares features and techniques modern SAT solvers utilize to maximize performance. Here we focus on: Implication Queue Sorting (IQS) combined with Early Conflict Detection Based BCP (ECDB);and a modified decision heuristic based on the combination of Variable State Independent Decaying Sum (VSIDS), Berkmin, and Siege's Variable Move to Front (VMTF). These features were implemented and compared within the framework of the MIRA SAT solver. The efficient implementation and analysis of these features are presented and the speedup and robustness each feature provides is demonstrated. Finally, with everything enabled (ECDB with IQS and advanced decision heuristics), MIRA was able to consistently outperform zChaff and even Forklift on the benchmarks provided, solving 37 out of 111 industrial benchmarks compared to zChaff s 21 and Forklift's 28. © Springer-Verlag Berlin Heidelberg 2005.

关键词： Problem solving

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Integrability for the Jacobian of orientation-preserving forms

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science China Mathematics 2005年第11期48卷 1488-1498页

作者： GAO Hongya ZHAO Hongliang College of Mathematics and Computer Science Hebei University Baoding 071002 China Department of Mathematics and Physics Qingdao Institute of Architecture and Engineering Qingdao 266033 China

This paper considers the integrability for the Jacobian of orientation-preserving forms in anisotropic Sobolev classes. The main result is a sufficient condition ensuring integrability of the Jacobian, which can be re... 详细信息

关键词： Jacobian,integrability,Hadamard's inequality,Hodge decomposition

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Transforming K-12 education via the collaborative large-scale engineering analysis network for environmental research (CLEANER) project

Transforming K-12 education via the collaborative large-scal...

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113th Annual ASEE Conference and Exposition, 2006

作者： Eschenbach, Elizabeth Johnson, James H. Brus, Chris Carlson, Patricia Giammar, Dan Grauer, Bette Hotaling, Liesl Oguntimein, Gbekeloluwa Safferman, Steven Wentling, Tim Humboldt State University United States Department of Environmental Resources Engineering Humboldt State University United States Howard University United States Department of Environmental Engineering College of Engineering Architecture and Computer Sciences Howard University United States Board of Scientific Counselors Executive Committee U.S. Environmental Protection Agency Office of Research and Development United States EPA's Science Advisory Board Department of Energy-sponsored HBCU/MI Environmental Technology Consortium Board Environmental Studies and Toxicology and the Engineering Council of the American Society for Engineering Education United States University of Iowa United States Program University of Iowa United States Rose-Hulman Institute of Technology United States Department of Rhetoric Rose-Hulman Institute ot Technology U.S. Air Forcer United States Army's Aberdeen Proving Ground NASA's Classroom of the Future Wheeling WV United States Washington University United States Department of Civil Engineering Washington University St. Louis United States Environmental Engineering Science Program Center for Materials Innovation United States McPherson High School United States McPherson High School McPherson KS United States Stevens Institute of Technology United States Stevens Institute of Technology United States Morgan State University United States Michigan State University United States Biosystems and Agricultural Engineering Department Michigan State University United States University of Dayton United States U.S. EPA Office of Research and Development United States National Center for Supercomputing Applications United States Department of Information Science Graduate School of Library and Information Science National Center for Supercomputing Applications University of Illinois United States

The Collaborative Large-scale Engineering Analysis Network for Environmental Research (CLEANER) Project Office has been established with funding from the National science Foundation (NSF) to the University of Illinois Urbana-Champaign (UIUC) and a coalition of 11 other institutions. The project office is coordinating the creation of a strategic plan consisting of research, cyberinfrastructure, and education plans that set forth a roadmap for the collaborative engineering analysis network for the study of environmental problems. This report will be completed by July 2007 and requires input from K-12 educators, administrators and other stakeholders in K-12 education. This paper describes the CLEANER project, provides an example of the CLEANER Education Committee's vision for the K-12 area and lists contacts for further information. The intention of this paper is to elicit input from the K-12 engineering education community, including K-12 educators, on how the CLEANER Education Plan could better meet the future needs of K-12 students and educators © American Society for Engineering Education, 2006.

关键词： Engineering education

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Security architecture for service-based mobile environments

Security architecture for service-based mobile environments

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IEEE Annual Conference on Pervasive Computing and Communications Workshops (PerCom)

作者： H. Kopp U. Lucke D. Tavangarian Institute of Computer Science Chair for Computer Architecture University of Rostock Rostock Germany

The paper describes an approach for the integration of transparent security mechanisms into de-centralized mobile application scenarios. This becomes necessary as the communication among various devices migrates to wireless technologies at a progressive rate, finally leading to pervasive computing scenarios. Our result is a modular and heterogeneous architecture based on a high-capacity middleware. In this regard, the Web services technology is a guarantor for modularity as well as flexibility. It allows the integration of special tasks applying high security and mobility on different layers. This paper describes basic technologies used in such a system as well as selected aspects of a realized prototype.

关键词： Pervasive computing Middleware Application software computer architecture Mobile computing Mobile communication Handheld computers Communication system security Prototypes Network servers

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