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Innovations in electronic academic publishing

IEEE Intelligent Systems and Their Applications 1998年第1期13卷 6-7页

作者： Hearst, Marti A. Wellman, Michael P. Minton, Steve Sim, Ida Lesk, Michael University of California Berkeley CA United States University of Michigan Dept. of Elec. Eng. and Comp. Sci. AI Lab MIT American Association for AI American Economic Association Assoc. for Comp. Mach. and Informs AI Laboratory University of Michigan 1101 Beal Ave. Ann Arbor MI 48109-2110 United States USC's Information Sciences Institute USC Computer Science Department Carnegie Mellon University AAAI ACM Information Sciences Inst. Univ. of Southern California 4676 Admiralty Way Marina del Rey CA 90292 United States Department of Medicine University of California San Francisco CA United States Stanford University Stanford Univ. School of Medicine Amer. Med. Informatics Association American College of Physicians Society for Medical Decision Making Dept. of Medicine Univ. of California San Francisco 400 Parnassus Ave. A-405 San Francisco CA 94143-0320 United States Div. of Info. and Intelligent Syst. National Science Foundation University College London Department of Computer Science NSF 4201 Wilson Blvd. Arlington VA 22230 United States

Examines three different innovations in electronic academic publishing of interest to practitioners in the field of intelligent systems: (1) JAIR (The Journal of Artificial Intelligence Research)-an electronic journal by and for the AI research community; (2) medical publishing and AI; and (3) how can we get high-quality electronic journals?.

关键词： Technological innovation Costs Intelligent systems Biomedical imaging medical diagnostic imaging Subscriptions Electronic publishing medical services Software libraries Artificial intelligence

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Regularization methods for inverse problem of body surface potential mapping

Regularization methods for inverse problem of body surface p...

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Annual International Conference of the IEEE engineering in Medicine and Biology Society (EMBC)

作者： H. Nakamura T. Aoki H. Tanaka Department of Computer Science Nihon University School of Medicine Tokyo Japan Department of Information Engineering Nihon University Japan Department of Information Medicine Medical research Institute Tokyo Medical and Dental University Japan

A numerical simulation for body surface potential mapping was investigated using boundary element method (BEM). After forward simulation, we investigated the accuracy and stability of ECG inverse solution from the viewpoint of minimum description length principle (MDL). It became obvious that the solution containing up to 16th expansion components is optimal for ECG inverse problem.

关键词： Inverse problems Electrocardiography Stability Thorax Torso Concrete Numerical simulation Lungs Heart

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Ionic current model of the retinal photoreceptor and simulation analysis of the photoresponses

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SYSTEMS AND computerS IN JAPAN 1996年第12期27卷 10-21页

作者： Usui, TOS Kamiyama, Y Faculty of Information Engineering Toyohashi University of Technology Shim Usui:graduated in 1974 with his Ph.D. degree in Computer Science from the University of California. He was appointed Research Associate at Nagoya University in 1974 a Lecturer at Toyohashi University of Technology in 1979 and an Associate Professor and then a Professor in 1986. He has been engaged in research on physiological information engineering and physiological engineering. He is the author of Basic Physwlqicul Signal Processing. He is a member of IEE Institute of Measurement and Automation Japan Institute of Information Processing Japan Institute of Medical Engineering Japan Institute of Physiology Japan Institute of Neural Science Japan Institute of Neural Networks Japan: and INNS. He is an IEEE fellow.

The fact that the reception of optical information by the retinal photoreceptor and the process of its transformation to the membrane voltage response are due to an interaction between the photocurrent from the outer segment and each ionic current in the inner segment has been confirmed by many physiological experiments. However, the properties of each ionic current in the photoreceptor have not been clear since no physiologically reliable model of the retinal photoreceptor has been constructed. This paper proposes a model of a retinal photoreceptor, which is a combination of the outer segment model (devised by Torre et al.) and the inner segment model (devised by the present authors). It has been confirmed that this model can accurately represent the electron physiological properties of a retinal photoreceptor. Using this model simulation, the relationship between the photocurrent and the photoresponse dynamics, and an oscillatory phenomena caused by a strong light flash have been analyzed. The results show that the dynamic and nonlinear response characteristics of a retinal photoreceptor are due to the interactions between the nonlinear ionic current in the inner segment and the mechanism of the intracellular calcium.

关键词： retinal photoreceptor photoresponse intracellular calcium mechanism simulation analysis

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Co-learning of recursive languages from positive data 2nd

Co-learning of recursive languages from positive data

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Proceedings of the 1996 2nd International Andrei Ershov Memorial Conference on Perspectives of System informatics

作者： Freivalds, R. Zeugmann, T. Institute of Mathematics and Computer Science University of Latvia Raina bulv. 29 Riga Latvia Department of Informatics Graduate School of Information Science and Electrical Engineering Kyushu University 33 Fukuoka 812-81 Japan

ISBN: (纸本)3540620648

The present paper deals with the co-learnability of enumerable families L of uniformly recursive languages from positive data. This refers to the following scenario. A family L of target languages as well as hypothesis space for it are specified. The co-learner is fed eventually all positive examples of an unknown target language L chosen from L. The target language L is successfully co-learned iff the co-learner can definitely delete all but one possible hypotheses, and the remaining one has to correctly describe L. The capabilities of co-learning are investigated in dependence on the choice of the hypothesis space, and compared to language learning in the limit, conservative learning and finite learning from positive data. Class preserving learning (L has to be co-learned with respect to some suitably chosen enumeration of all and only the languages from L), class comprising learning (L has to be co-learned with respect to some hypothesis space containing at least all the languages from L), and absolute co-learning (L has to be co-learned with respect to all class preserving hypothesis spaces for L) are distinguished. Our results are manyfold. First, it is shown that co-learning is exactly as powerful as learning in the limit provided the hypothesis space is appropriately chosen. However, while learning in the limit is insensitive to the particular choice of the hypothesis space, the power of co-learning crucially depends on it. Therefore the properties a hypothesis space should have in order to be suitable for co-learning are studied. Finally, a sufficient conditions for absolute co-learnability is derived, and it is separated from finite learning. © Springer-Verlag Berlin Heidelberg 1996.

关键词： Artificial intelligence

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Preface 7th

Preface

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7th International Symposium on Algorithms and Computation, ISAAC 1996

作者： Asano, Tetsuo Igarashi, Yoshihide Nagamochi, Hiroshi Miyano, Satoru Suri, Subhash Dept. of Engineering Informatics Osaka Electro-Communication University Hatsu-cho Neyagawa572 Japan Dept. of Computer Science Gunma University Kiryu376 Japan Dept. of Applied Mathematics and Physics Kyoto University Sakyo-ku Kyoto606-01 Japan Institute of Medical Science University of Tokyo Shirokanedai 4-6-1 Minato-ku Tokyo108 Japan Dept. of Computer Science Washington University St. LouisMO63130 United States

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An optimal algorithm for Monte Carlo estimation

An optimal algorithm for Monte Carlo estimation

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Annual IEEE Symposium on Foundations of computer science

作者： P. Dagum R. Karp M. Luby S. Ross Section on Medical Informatics Rockwell Palo Alto Laboratory Stanford University School of Medicine Palo Alto CA USA Computer Science Division University of California Berkeley USA International Computer Science Institute Berkeley CA USA Department of Industrial Engineering and Operations Research University of California Berkeley USA

A typical approach to estimate an unknown quantity /spl mu/ is to design an experiment that produces a random variable Z distributed in [O,1] with E[Z]=/spl mu/, run this experiment independently a number of times and use the average of the outcomes as the estimate. In this paper, we consider the case when no a priori information about Z is known except that is distributed in [0,1]. We describe an approximation algorithm AA which, given /spl epsiv/ and /spl delta/, when running independent experiments with respect to any Z, produces an estimate that is within a factor 1+/spl epsiv/ of /spl mu/ with probability at least 1-/spl delta/. We prove that the expected number of experiments ran by AA (which depends on Z) is optimal to within a constant factor for every Z.

关键词： Monte Carlo methods Approximation algorithms Estimation theory Silicon compounds computer science Upper bound Algorithm design and analysis Random variables Probability Design for experiments

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Study of inclusive baryon-antibaryon pair production of p or Λ in two-photon processes

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Zeitschrift für Physik C: Particles and Fields 1995年第1期69卷 597-606页

作者： Uehara, S. Abe, K. Amako, K. Arai, Y. Arima, T. Asano, Y. Chiba, M. Chiba, Y. Daigo, M. Fukawa, M. Fukushima, Y. Haba, J. Hamasaki, H. Hanai, H. Hemmi, Y. Higuchi, M. Hinode, F. Hirose, T. Homma, Y. Hosoda, N. Ishihara, N. Iwata, Y. Kanzaki, J. Kikuchi, R. Kondo, T. Korhonen, T.T. Kurashige, H. Matsuda, E.K. Matsui, T. Miura, M. Miyake, K. Mori, S. Nagashima, Y. Nakagawa, Y. Nakamura, T. Nakano, I. Odaka, S. Ogawa, K. Ohama, T. Ohsugi, T. Ohyama, H. Okabe, K. Okamoto, A. Ono, A. Oyama, T. Pennanen, J. Sakamoto, H. Sakuda, M. Sato, M. Sato, N. Shioden, M. Shirai, J. Shirakata, M. Sumiyoshi, T. Takada, Y. Takasaki, F. Takita, M. Tamura, N. Tatsumi, D. Tobimatsu, K. Tsuboyama, T. Unno, Y. Watanabe, T. Watase, Y. Yabuki, F. Yamada, Y. Yamagata, T. Yonezawa, Y. Yoshida, H. Yusa, K. KEK National Laboratory for High Energy Physics Tsukuba 305 Oho 1-1 Japan Department of Physics Tohoku University Sendai 980 Aza-Aoba Aramaki Aoba-ku Japan Institute of Applied Physics University of Tsukuba Tsukuba 305 Tennoudai 1-1-1 Japan Department of Physics Tokyo Metropolitan University Hachioji 192-03 Minami-Ohsawa 1-1 Japan Yasuda Women's Junior College Hiroshima 731-01 Yasuhigashi 6-13-1 Asa-Minami-ku Japan Faculty of Economics Toyama University Toyama 930 3190 Gofuku Japan Department of Physics Osaka University Toyonaka 560 Machikaneyama 1-1 Japan Department of Physics Kyoto University Kyoto 606 Oiwake-cho Kita-Shirakawa Sakyo-ku Japan Department of Applied Physics Tohoku-Gakuin University Tagajo 985 Chuo 1-13-1 Japan School of Applied Medical Science Kobe University Kobe 654-01 Tomogaoka 7-10-2 Suma-ku Japan Department of Physics Hiroshima University Higashi-Hiroshima 724 Kagamiyama 1-3-1 Japan Research Institute for High Energy Physics Helsinki University Helsinki SF-00170 Siltavuorenpenger 20C Finland Department of Physics Okayama University Okayama 700 Tsushimanaka 3-1-1 Japan Division of Natural Sciences International Christian University Mitaka 181 Ohsawa 3-10-2 Japan Faculty of Engineering Miyazaki University Miyazaki 889-01 Gakuen-Kibanadai-Nishi 1-1 Japan Institute of Physics University of Tsukuba Tsukuba 305 Tennoudai 1-1-1 Japan Hiroshima National College of Maritime Technology Hiroshima-ken 725-02 Higashino-cho 4272-1 Japan Faculty of Cross-Cultural Studies Kobe University Kobe 657 Tsurukabuto 1-2-1 Nada-ku Japan Department of Electronic and Computer Engineering Ibaraki College of Technology Hitachinaka 312 Nakane Japan Center for Information Science Kogakuin University Tokyo 163-91 Nishi-Shinjuku 1-24-2 Shinjuku-ku Japan Department of Physics Kogakuin University Tokyo 192 Nakano-cho 2665-1 Hachioji Japan Tsukuba College of Technology Tsukuba 305 Kasuga 4-1 Japan Naruto Universi

Inclusive baryon-antibaryon pair production was studied in two-photon events which were collected at the e + e - collider TRISTAN, and correspond to an integrated luminosity of 303 pb-1. Correlations between a baryon ...

Inclusive baryon-antibaryon pair production was studied in two-photon events which were collected at the e⁺ e^- collider TRISTAN, and correspond to an integrated luminosity of 303 pb^-1. Correlations between a baryon and an antibaryon were studied for their flavors (p or Λ) and their momentum vectors. The experimental results were compared with the expectations from a jet-fragmentation Monte Carlo simulation. We have found that although the ratios of the cross sections of different baryon-flavor combinations are consistent with the Monte Carlo expectations, the cross section shows an excess over the Monte Carlo expectation in a low invariant-mass region of final-state particles at large angles, that indicates a significant contribution from higher-order QCD or non-perturbative effects. The experimental data show no narrow azimuthal-angle correlation, which is expected from a jet-fragmentation Monte Carlo. A search for exclusive Λ pair production has also been made. We have no candidates and have obtained the upper limit for the cross section. © 1996 Springer-Verlag.

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Application of a deductive database system PACADE toward discovery of clusters of similar structures in proteins

Application of a deductive database system PACADE toward dis...

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Annual Hawaii International Conference on System sciences (HICSS)

作者： Satou Furuichi Takiguchi Kuhara Takagi Department of Computer Science and Communication Engineering Kyushu University Fukuoka Japan Fukuoka Womens Junior College Fukuoka Japan International Institute for Advanced Study of Social Information Science Fujitsu Laboratories Limited Chiba Japan Graduate School of Genetic Resources Technology Kyushu University Fukuoka Japan Human Genome Center Institute of Medical Science University of Tokyo Minato Tokyo Japan

We developed the deductive database system PACADE (Protein Coordinate Analyzer with Deductive Engine) for analyzing three dimensional and secondary structures of protein. PACADE has an inference system and a relational database which stores primary, secondary and tertiary structures converted from Brookhaven's Protein Data Bank (PDB). Users of PACADE can represent biological knowledge on structures of protein, in a logical and declarative form and some iterative structures can be efficiently searched for, using PACADE. However, for protein structure analysis, any function that can only search for structures described by users is inadequate and a function was designated to search for similar structure in proteins. Using this function, similar structures can be searched for without calculating the inter-atomic root mean square distance. The outline of the PACADE system and the function and some results of searches for super-secondary structure, using the function are described, in detail. With this mode, one may be able to discover clusters of proteins based on similarity of structure.< >

关键词： Biomedical computing Inference mechanisms Database systems, relational Database systems, query processing

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Book reviews

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Journal of Classification 1994年第2期11卷 251-296页

作者： D. J. Hand Ove Frank W. Gödert H. Bacelar-Nicolau Sarunas Raudys A. W. Bowman Glenn W. Milligan R. J. Hathaway R. B. Ivimey-Cook B. S. Everitt Allan R. Wilks B. D. Ripley Wayne S. DeSarbo A. D. Gordon V. Pliner A. Ferligoj Statistics Department The Open University Milton Keynes England Polytechnique of Library and Information Science Cologne Laboratório de Estatística e Análise de Dados Faculdade de Psicologia e Ciências da Educaçäo Universidade de Lisboa Lisboa Portugal Institute of Mathematics and Informatics Vilnius Lithuania Department of Statistics University of Glasgow Glasgow Scotland Department of Management Sciences The Ohio State University Columbus USA Mathematics and Computer Science Department Georgia Southern University Statesboro USA Department of Biological Sciences University of Exeter Hatherly Laboratories Exeter England Department of Biostatistics and Computing Institute of Psychiatry London England AT&T Bell Laboratories Murray Hill USA Department of Statistics University of Oxford Oxford UK Marketing & Statistics Departments School of Business University of Michigan Ann Arbor Mathematical Institute University of St Andrews St Andrews Scotland Medical & Health Research Association of New York City MIT Study New York USA Faculty of Social Sciences Ljubljana Slovenia

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A framework for performance engineering during information system development 4th

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4th International Conference on Advanced information Systems engineering, CAiSE 1992

作者： Opdahl, Andreas L. Sølvberg, Arne The University of Trondheim Norway Department of Informatics Faculty of Nature Sciences College of Arts and Science Norway Information Systems Group Department of Electrical Engineering and Computer Science The Norwegian Institute of Technology Norway

ISBN: (纸本)9783540554813

Software performance engineering aims at predicting and improving the performance of applications during development and in production. This paper presents a framework for performance engineering of information systems with emphasis on parameter estimation support. The need for performance engineering of information systems is discussed. Views of information system and performance modelling are presented. It is shown how application specifcations can be extended with performance annotations. The resulting framework is applied to predict and improve the performance of projected applications during development. Sensitivity analysis is supported to point out performance bottlenecks in the application and suggest which parameters to estimate with most care. Target platform modelling is provided to relieve the information system developer from assessing the performance of the target platform and operating system software. The framework is realised in terms of the PrM language for software specification. Finally, some conclusions are offered. © Springer-Verlag Berlin Heidelberg 1992.

关键词： information systems

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