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3rd International Workshop on Challenges of Large Applications in Distributed Environments, CLADE 2005

作者： Wang, Shaowen Armstrong, Marc P. Ni, Jun Liu, Yan Academic Technologies - Research Services of Information Technology Services University of Iowa Iowa City IA 52242 Department of Geography University of Iowa Iowa City IA 52242 Program in Applied Mathematical and Computational Science University of Iowa Iowa City IA 52242 Department of Computer Science University of Iowa Iowa City IA 52242

ISBN: (纸本)0780390431

The purpose of this paper is to demonstrate the design and implementation of GISolve - a Grid-based problem solving environment for computationally intensive geographic information analysis based on geo-middleware. The geo-middleware resides between existing Grid middleware and geographic information analysis applications to manage heterogeneous and dynamic resources on behalf of analysis applications. At the same time, GISolve provides adaptive domain decomposition solutions to parallel geographic information analysis applications. Based on these domain decomposition solutions, GISolve also schedules distributed tasks and manages data transfers. In GISolve, these capabilities are designed as Grid services that are compliant with the open Grid service architecture (OGSA) and are implemented using Grid portal technologies. The GISolve implementation is illustrated based on a case study of a computationally intensive spatial statistic - [Gi(d)] that is used to assess spatial dependence among geographically distributional observations. © 2005 IEEE.

关键词： Problem solving

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Elementary science classroom learning with wireless response devices implementing active and experiential learning

Elementary science classroom learning with wireless response...

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IEEE International Workshop on Wireless, Mobile and Ubiquitous technology in Education (WMUTE)

作者： Yu-Fen Chen Chen-Chung Liu Ming-Hung Yu Sung-Bin Chang Yun-Chen Lu Tak-Wai Chan Department of Computer Science Information Engineering National Central University Taiwan Graduate Institute of Network Learning Technology National Central University Taiwan Degree Program of E-Learning College of Science National Chiao Tung University Taiwan Chu-Wei Elementary School Taiwan

Active learning enables learners to actively engage in learning. Learning not only transfers material to students for learning, but also encourages greater mental engagement and more extensive student-student and student-instructor interaction than does a typical lecture class. Peer instruction (PI) engages students in active learning by achieving continuous instructor-student interaction in a physics lecture. However, the methodologies and the effectiveness of implementing PI for elementary school students have seldom been clarified. This study explores the possibility of adopting PI in an elementary science classroom. The research considerations of the study are as follows: (1) how wireless technology can enhance PI in elementary science classroom; (2) how a teacher can engage students in pre-class reading, and (3) whether elementary school students have sufficient social skills to perform a PI discussion? These questions are examined by observing how the PI pedagogical model worked with a wireless response system in elementary science classroom. Based on the observation, this study also proposes a way of improving the PI learning experience of elementary school students by adding experiments and observations during peer discussion to explain concepts and phenomena in physics.

关键词： Educational institutions Physics Chemical elements computer science Materials science and technology Electronic learning Probes Astrochemistry Physiology Astronomy

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Knowledge management support for collaborative emergency response

Knowledge management support for collaborative emergency res...

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International Conference on computer Supported Cooperative Work in Design

作者： V.B. Diniz M.R.S. Borges J.O. Gomes J.H. Canos Graduate Program in Information Technology Núcleo de Computação Eletrõnica and Instituto de Matemática Universidade Federal do Rio de Janeiro Brazil Department of Computer Science (DSIC Technical University of Valencia Spain

An emergency response activity usually involves several teams from different organizations working cooperatively for the purpose of saving lives or properties. These teams have to make many decisions under time pressure to accomplish their goals. Most decisions require contextual knowledge coming from the emergency settings, including those which report the activities of other emergency teams. The goal of this paper is to describe a system which aims at storing and disseminating the contextual knowledge required by teams during the course of an emergency.

关键词： Knowledge management Collaboration Disaster management Control systems information technology computer science Teamwork Electric breakdown Context Management information systems

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Journal of information science and Engineering: Editorial notice

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Journal of information science and Engineering 2005年第5期21卷 i-ii页

作者： Lee, Der-Tsai Amato, Nancy M. Chang, Shih-Fu Chen, Homer H. Chen, Tsuhan Hsu, Tsan-Sheng Hwang, Jenq-Neng Kuo, Sy-Yen Kuo, Tei-Wei Li, Chung-Sheng Tokuyama, Takeshi Wing, Jeannette Wu, Tzong-Chen Yen, John Computer Science at Texas A and M University United States Parasol Laboratory United States IEEE Transactions on Parallel and Distributed Systems Computing Research Association's Committee on the Status of Women in Computing Research CRA-W's Distributed Mentor Program United States Department of Electrical Engineering Columbia University United States Lab. United States College of Electrical Engineering and Computer Science National Taiwan University Taiwan IEEE Transactions on Circuits and Systems for Video Technology IEEE Department of Electrical and Computer Engineering Carnegie Mellon University Pittsburgh PA United States ACM ACM SIGACT IEEE Computer Society IICM Austria Research and Development of the Department Multimedia Signal Processing Technical Committee IEEE Signal Processing Society United States IEEE Transactions on Circuits and systems for Video Technology College of Electrical Engineering and Computer Science National Taiwan Ocean University Keelung Taiwan Department of Electrical Engineering National Taiwan University Taiwan Department of Computer Science and Information Engineering National Taiwan University Taipei Taiwan IEEE Technical Committee on Real-Time Systems Computer Science Division IBM T.J. Watson Research Center United States IBM Research Division Graduate School of Information Sciences Tohoku University Japan ACM IPSJ Mathematical Society of Japan Japan Department of Computer Science Computer Science Department Carnegie Mellon University United States National Academies of Science's Computer Science and Telecommunications Board United States Microsoft's Trustworthy Academic Advisory Board Intel Research Pittsburgh's Advisory Board United States Dartmouth's Institute for Security Technology Studies Advisory Committee Canada Sloan Research Fellowships Program Committee United States ACM Taiwan China Information Sciences and Technology Pennsylvania State University United States Laboratory for Intelligent Agents Penn State's School of Info

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A collaborative intelligent tutoring system for medical problem-based learning

A collaborative intelligent tutoring system for medical prob...

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IUI 04: 2004 International Conference on Intelligent User Interfaces

作者： Suebnukarn, Siriwan Haddawy, Peter Computer Science and Information Management Program Asian Institute of Technology PO Box 4 Pathumthani Thailand

This paper describes COMET, a collaborative intelligent tutoring system for medical problem-based learning. The system uses Bayesian networks to model individual student knowledge and activity, as well as that of the group. It incorporates a multi-modal interface that integrates text and graphics so as to provide a rich communication channel between the students and the system, as well as among students in the group. Students can sketch directly on medical images, search for medical concepts, and sketch hypotheses on a shared workspace. The prototype system incorporates substantial domain knowledge in the area of head injury diagnosis. A major challenge in building COMET has been to develop algorithms for generating tutoring hints. Tutoring in PBL is particularly challenging since the tutor should provide as little guidance as possible while at the same time not allowing the students to get lost. From studies of PBL sessions at a local medical school, we have identified and implemented eight commonly used hinting strategies. We compared the tutoring hints generated by COMET with those of experienced human tutors. Our results show that COMET's hints agree with the hints of the majority of the human tutors with a high degree of statistical agreement (McNemar test, p = 0.652, Kappa = 0.773). Copyright 2004 ACM.

关键词： Learning systems

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Temporal versioning of XML documents

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Lecture Notes in computer science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 2004年 3334卷 419-428页

作者： Wuwongse, Vilas Yoshikawa, Masatoshi Amagasa, Toshiyuki Computer Science and Information Management Program Asian Institute of Technology P.O. Box 4 Klong Luang Pathumthani 12120 Thailand Information Technology Center Nagoya University Furo-cho Chikusa-ku Nagoya 464-8601 Japan Graduate School of Information Science Nara Institute of Science and Technology 8916-5 Takayama Ikoma Nara 630-0101 Japan

A data model supporting the unification of the management of temporal XML document databases and version control, i.e., a Temporal Version Data Model (TVDM), is proposed. TVDM is temporally change-centric and represents the change between two consecutive versions by means of temporal delta (tDelta). A tDelta employs a temporal XML expression (tXex) which is an extension of ordinary XML elements by incorporation into them temporal as well as ordinary variables. In addition to valid time, TVDM introduces version time and associates it with each version. All versions including the base or the current one can be uniformly represented by tDeltas. A technique to implement TVDM is also presented. © Springer-Verlag Berlin Heidelberg 2004.

关键词： XML

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Determinism in cellular automata-investigation of transition rules

Determinism in cellular automata-investigation of transition...

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International Conference on Intelligent Sensing and information Processing (ICISIP)

作者： S. Supratid R. Sadananda Faculty of Information Technology Rangsit University Pathum Thani Thailand Computer Science Program Asian Institute of Technology Pathum Thani Thailand

Cellular automata are discrete dynamic systems whose behavior is specified in terms of local interactions. Even simple local interactions may eventually manifest themselves in terms of complex and unexpected global patterns. A number of investigations have been reported on two-dimensional lattices demonstrating exciting outcomes starting with simple initial configurations and simple rules of interactions, giving rise to the speculative possibilities of artificial life. There is a growing interest in a variety of automata including three dimensional automata and variations of transition rules, but common to all their formations are certain hard questions relating to the global determinism of the behavior of the cellular automata manifest in the local interactions. There are a number of other theoretical issues remain unresolved. A considerable theoretical work and simulation have been reported around the one-dimensional lattices, primarily because of possible visualization of the processes. In this paper we investigate the issue of density of an automata configuration and its determinism.

关键词： Lattices Automata information technology computer science Visualization Content addressable storage Centralized control Automatic control Communication system control Control systems

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A Moment-Based Method for Large-Scale Generalized Eigenvalue Problems

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Applied Numerical Analysis & Computational Mathematics 2004年第2期1卷

作者： Tetsuya Sakurai Hiroto Tadano Yuichi Inadomi Umpei Nagashima Department of Computer Science University of Tsukuba Tsukuba 305-8573 Japan Core Research for Evolutional Science and Technology Japan (CREST) Doctoral Program of Systems and Information Engineering University of Tsukuba Tsukuba 305-8573 Japan Grid Technology Research Center National Institute of Advanced Industrial Science and Technology Tsukuba 305-8568 Japan

In this paper we consider a method for finding several eigenvalues and corresponding eigenvectors of large-scale generalized eigenvalue problems. In this method, a small matrix pencil that has only the desired eigenvalues is derived using complex moments obtained via numerical integration. Since the process to derive the moments can be performed in parallel and we do not need to exchange data between processes, the presented method is suitable for master-worker programming models. We have implemented and tested the proposed method in a grid RPC (remote procedure call) system. Numerical examples illustrate the properties of our approach. (© 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

关键词： Eigenvalue problems moment-based method parallel algorithm

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A rule-based XML access control model

Lecture Notes in Computer Science (including subseries Lectu...

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Lecture Notes in computer science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 2003年 2876卷 35-48页

作者： Anutariya, Chutiporn Chatvichienchai, Somchai Iwiahara, Mizuho Wuwongse, Vilas Kambayashi, Yahiko Computer Science Program Shinawatra University Pathumthani Thailand Department of Social Informatics Graduate School of Informatics Kyoto University Kyoto Japan Computer Science and Information Management Program Asian Institute of Technology Pathumthani Thailand

Due to a widely use of XML language in various application domains, a well-established mechanism for the definition and enforcement of security controls on specific accesses to XML documents is demanded, in order to ensure that only authorized entities can perform certain actions on the protected data. The proposed rule-based, declarative approach supports definition of (possibly implicit and complex) authorization rules on particular nodes within a document as well as enforcement of multiple user-defined policies, specifying selected mechanisms to resolve conflicts or to apply default authorization. Moreover, by founded on both RDF and XDD theory, the developed approach yields a simple yet flexible and interchangeable XML access control model with well-defined declarative semantics. © Springer-Verlag Berlin Heidelberg 2003.

关键词： Access control models

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Humanoid arm motion planning using stereo vision and RRT search

Humanoid arm motion planning using stereo vision and RRT sea...

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IEEE International Workshop on Intelligent Robots and Systems (IROS)

作者： S. Kagami J. Kuffner K. Nishiwaki K. Okada M. Inaba H. Inoue CREST Program Japan Science and Technology Agency Japan Digital Human Laboratory National Institute for Advanced Industrial Science and Technology Japan School of Computer Science Carnegie Mellon University USA Department of Mechano-Informatics School of Information Science and Technology University of Tokyo Japan

This paper describes an experimental stereo vision based motion planning system for humanoid robots. The goal is to automatically generate arm trajectories that avoid obstacles in unknown environments from high-level task commands. Our system consists of three components: 1) environment sensing using stereo vision with disparity map generation and on-line consistency checking, 2) probabilistic mesh modeling in order to accumulate continuous vision input, and 3) motion planning for the robot arm using RRTs (rapidly exploring random trees). We demonstrate results from experiments using an implementation designed for the humanoid robot H7.

关键词： Stereo vision Humanoid robots Motion planning Humans technology planning Robot sensing systems Orbital robotics Kinematics computer science information science

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