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5th Distributed Memory Computing Conference, DMCC 1990

作者： Balasundaram, Vasanth Fox, Geoffrey Kennedy, Ken Kremer, Ulrich Caltech Concurrent Computation Program Mail Stop 206-49 Caltech PasadenaCA91125 United States Dept. of Computer Science Rice University HoustonTX77251 United States

ISBN: (纸本)0818621133

An approach to distributed memory parallel programming that has recently become popular is one where the programmer explicitly specifies the data decomposition using language extensions, and a, compiler generates all the communication. While this frees the programmer from the tedium of thinking about message-passing, no assistance is provided in determining the data decomposition scheme that gives the best performance on the target machine. In this paper, we propose an interactive software tool that provides assistance for this very task. The proposed tool also computes performance estimates for any chosen data partitioning scheme, allowing the programmer to experiment with several different strategies without ever running the program on the machine. ©1990 IEEE.

关键词： Parallel programming

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Panel Session Current Research in the Psychology of programming

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Proceedings of the Human Factors and Ergonomics Society Annual Meeting 1989年第5期33卷 242 - 244页

作者： Michael E. Atwood Ruven Brooks Wayne D. Gray Raymonde Guindon Thomas W. Mastaglio Laboratory NYNEX AI Schlumberger Laboratory for Computer Science MCC - Software Technology Program University of Colorado Dept. of Computer Science

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Construction of polyhedral surfaces from serial sections: Exact and heuristic solutions

Construction of polyhedral surfaces from serial sections: Ex...

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Medical Imaging III: Image Capture and Display 1989

作者： Shaw, Alan Schwartz, Eric L. Computational Neuroscience Laboratories New York University School of Medicine Department of Psychiatry 550 First Avenue New YorkNY10016 United States Dept. of Computer Science Courant Institute of Mathematical Sciences New York University 715 Broadway New YorkNY10003 United States

The problem of reconstructing a polyhedral surface from cross-sectional data admits of an exact and automatic solution when the surface is densely sampled as a voxel surface. We regard such a surface as a discrete sampling of a smooth manifold in general position. Using the full adjacency graph of the surface provided by a voxel model, we are able to classify the small set of possible topological changes in the sections of the surface;we then deal with these cases exhaustively, and thereby guide the triangulation process. In this way we are able to carry out triangulation without human interaction. When the sections are sparsely sampled, heuristic methods must suffice for triangulation. These methods work well on segments of "generalized cylinder," i.e., runs of sections containing single loops, but they often fail when attempting to process highly convoluted surfaces. This is because the topology of the sections changes when a critical point of the surface is encountered. We outline a heuristic algorithm based upon the same theoretical considerations as the full (dense-sampling) algorithm. This second algorithm follows a parsing step similar to that of the full algorithm, but locates critical nodes which are saddle points by a least-squares procedure, and uses this fit to supply the information required to complete the triangulation. This method provides a solution which is comparable in quality to the correct solution derived from the first algorithm. © 1989 SPIE. All rights reserved.

关键词： Triangulation

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Embedding grids into hypercubes 3rd

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3rd Aegean Workshop on Computing: VLSI Algorithms and Architectures, AWOC 1988

作者： Bettayeb, Said Miller, Zevi Sudborough, I. Hal Computer Science Program University of Texas at Dallas RichardsonTX75083-0688 United States Dept. of Math and Statistics Miami University OxfordOH45056 United States

ISBN: (纸本)9780387968186

We consider efficient simulations of mesh connected networks by hypercube machines. In particular, we consider embedding a mesh or grid G into the smallest hypercube that has at least as many points as G, called the optimal hypercube for G. In order to minimize simulation time we derive embeddings, i.e. one-to-one mappings of points in G to points in the hypercube, which minimize dilation, i.e. the maximum distance in the hypercube between images of adjacent points of G. Our results are:(1)There is a dilation 2 embedding of the [m×k] grid into its optimal hypercube, under conditions described in Theorem 2.1.(2)For any k1×a2×.. ×ad] grid into its optimal hypercube, under conditions described in Theorem 3.1.(3)A lower bound on dilation in embedding multi-dimensional meshes into their optimal hypercube as described in Theorem 3.2. © 1988, Springer-Verlag.

关键词： Mesh generation

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On polynomial time computable problems 17th

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17th Symposium on Graph Theory and Algorithms, 1980

作者： Kasai, T. Adachi, A. Dept. of Computer Science The University of Electro-communications 1-5-1 Chofugaoka Chofu-shi Tokyo182 Japan Dept. of Academic and Scientific Program IBM Japan

In this paper, we investigate problems which require O(nk) time, for each interger k, where n is the size of input. Also, we present a number of problems which require exponential time. © 1981, springer-Verlag.

ISBN: (纸本)9783540107040

关键词： Polynomial approximation

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computer science and engineering education: Current trends, new dimensions and related professional programs 78

Computer science and engineering education: Current trends, ...

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9th SIGCSE Technical Symposium on computer science Education, SIGCSE 1978

作者： Jehn, Lawrence A. Rine, David C. Sondak, Norman Computer Science Dept. University of Dayton DaytonOH United States Information Science Program Western Illinois University MacombIL United States Computer Science Dept. Worcester Polytechnic Institute WorcesterMA United States

ISBN: (纸本)9781450374347

The role of the computer in engineering practice is ever increasing. The computer performs such tasks as: simple calculations;on line data recording and synthesis;acting as a control unit providing feedback;statistical analysis of large data sets;information retrieval and storage;and the simulation of large complex systems. © 1978 Association for Computing Machinery Inc. All rights reserved.

关键词： computer control systems

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Abstracts

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Environmental Management 1977年第1期1卷 67-96页

作者： Frankenfeld, John W. Schulz, Wolfgang McMurty, George J. Petersen, Gary W. May, G. A. Hering, F. S. Schwartz, J. I. Heywood, J. B. Chigier, N. A. Grohse, E. W. Walker, J. D. Colwell, R. R. Petrakis, L. Pergament, H. S. Thorpe, R. D. Schoepf, Richard W. Krzyczkowski, Roman Henneman, Suzanne S. Hudson, Charles L. Putnam, Evelyn S. Thiesen, Donna J. Parks, G. A. McCarty, Perry L. Leckie, J. O. Schrumpf, Barry J. Simonson, G. H. Paine, D. P. Lawrence, R. D. Pyott, W. T. Leh, M. Elders, W. Combs, J. Caplen, T. Harrison, F. L. Wong, K. M. Heft., R. E. Charnell, Robert L. Lehmann, Edward J. Mallon, Lawrence G. Hatfield, Cecile Adams, Gerald H. Johanning, James Talvitie, Antti Noll, Kenneth E. Miller, Terry Smiarowski, Joseph F. Willis, Cleve E. Foster, John H. Schlesinger, Benjamin Daetz, Douglas Lear, Donald U. Smith, Mona F. Hundemann, Audrey S. Crockett, Pernell W. Werner, Kirk G. Carroll, Thomas E. Maase, David L. Genco, Joseph E. Ifeadi, Christopher N. Lowman, F. G. Christensen, S. W. Van Winkle, W. Mattice, J. S. Harrison, Elizabeth A. Barker, James C. Chesness, Jerry L. Smith, Ralph E. Shaheeen, Donald G. Raney, R. Keith Borton, T. Wezernak, C. T. Raney, R. K. Sherwani, Jabbor K. Moreau, David H. Eisenberg, Norman A. Lynch, Cornelius J. Breeding, Roger J. Johnson, J. D. Foster, K. E. Mouat, D. A. Clark, R. Hyden, John William Owen, Wilfred Bayfield, Neil G. Barrow, Graham C. Stolz, Stephanie B. Wienckowski, Louis A. Brown, Betram S. Keyfitz, Nathan Wilson, W. L. Newman, Peter W. G. Bammi, Deepak Bammi, Dalip Goddard, James E. Chisholm, Tony Walsh, Cliff Brennan, Geoffrey Thompson, K. S. Richardson, R. Jensen, Clayton E. Brown, Dail W. Mirabito, John A. Cowing, Thomas G. Binghamton, Suny Siehl, George H. Albrecht, O. W. Alexander, Ariel Barde, Jean -Philippe Darby, William P. McMichael, Francis Clay Dunlap, Robert W. Muckleston, Keith W. Frankenhoff, Charles A. Giulini, Lorenzo T. Wyatt, T. Black, Peter E. Keating, William Thomas Leonard, M. E. Fisher, E. L. Brunelle, M. F. Dickinson, J. E. Pethig, Rudiger Clapham Exxon Research & Engineering Co. Linden Government Research Lab Coast Guard Washington D.C. Department of Transportation Washington D.C. Office For Remote Sensing of Earth Resources. NASA Earth Resources Survey Program Pennsylvania State University Washington D.C. Department of the Navy Washington D.C. Cambridge. Dept. of Mechanical Engineering Massachusetts Inst. of Technology USA Huntsville. School of Graduate Studies and Research Alabama Univ. USA Dept. of Microbiology. Office of Naval Research Maryland Univ. Arlington Research and Development Co. Pittsburgh AeroChem Research Labs. Inc. Princeton Dept. of the Interior Office of Library Services. Bibliographic Series (Final) Washington D.C. Interplan Corp. Santa Barbara Urban Mass Transportation Adm. Washington D.C. Naval Underwater Systems Center Newport Calif. Mercury Project. National Science Found Stanford Univ Washington D.C. Div. of Advanced Environmental Research & Tech. USA Corvallis. NASA Earth Resources Survey Program Oregon State Univ. Washington D.C. Riverside. Inst. of Geophysics and Planetary Physics National Science Foundation California Univ. Washington D.C. Livermore Lawrence Livermore Lab. California Univ. USA Atlantic Oceanographic and Meteorological Labs. National Oceanic and Atmospheric Administration Miami National Technical Information Service Springfield Miami Univ. Coral Gables School of Law National Oceanic and Atmospheric Administration Rockville National Academy of Sciences Office of Sea Grant Washington D. C. School of Law National Oceanic and Atmospheric Administration Office of Sea Grant. Rockville Norman. Dept. of Civil Engineering and Environmental Science. Urban Mass Transportation Administration Oklahoma Univ. Washington D. C. Knoxville.Dept. of Civil Engineering. Federal Highway Administration Tennessee Univ. Washington D. C. Amherst.Water Resources Research Center. Office of Water Research and Technology Massachusetts Univ. Washington D. C. Calif. Dept. of Industria

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Managed Software Evolution 1

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1000年

作者： Ralf Reussner Jan Keim Michael Goedicke Wilhelm Hasselbring Birgit Vogel-Heuser Lukas Märtin

ISBN: (数字)9783030134990

ISBN: (纸本)9783030134983;9783030135010

This open access book presents the outcomes of the “Design for Future – Managed Software Evolution” priority program 1593, which was launched by the German Research Foundation (“Deutsche Forschungsgemeinschaft (DFG)”) to develop new approaches to software engineering with a specific focus on long-lived software systems. The different lifecycles of software and hardware platforms lead to interoperability problems in such systems. Instead of separating the development, adaptation and evolution of software and its platforms, as well as aspects like operation, monitoring and maintenance, they should all be integrated into one overarching process.;Accordingly, the book is split into three major parts, the first of which includes an introduction to the nature of software evolution, followed by an overview of the specific challenges and a general introduction to the case studies used in the project. The second part of the book consists of the main chapters on knowledge carrying software, and cover tacit knowledge in software evolution, continuous design decision support, model-based round-trip engineering for software product lines, performance analysis strategies, maintaining security in software evolution, learning from evolution for evolution, and formal verification of evolutionary changes. In turn, the last part of the book presents key findings and spin-offs. The individual chapters there describe various case studies, along with their benefits, deliverables and the respective lessons learned. An overview of future research topics rounds out the coverage.;The book was mainly written for scientific researchers and advanced professionals with an academic background. They will benefit from its comprehensive treatment of various topics related to problems that are now gaining in importance, given the higher costs for maintenance and evolution in comparison to the initial development, and the fact that today, most software is not developed from scratch, but as part of a c

关键词： Software Engineering Software Management Management of Computing and Information Systems Theory of Computation

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Competition and Cooperation in Neural Nets 1

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丛书名： Lecture Notes in Biomathematics

1000年

作者： Shun-ichi Amari Michael A. Arbib

ISBN: (数字)9783642464669

ISBN: (纸本)9783540115748

The human brain, wi th its hundred billion or more neurons, is both one of the most complex systems known to man and one of the most important. The last decade has seen an explosion of experimental research on the brain, but little theory of neural networks beyond the study of electrical properties of membranes and small neural circuits. Nonetheless, a number of workers in Japan, the United States and elsewhere have begun to contribute to a theory which provides techniques of mathematical analysis and computer simulation to explore properties of neural systems containing immense numbers of neurons. Recently, it has been gradually recognized that rather independent studies of the dynamics of pattern recognition, pattern format::ion, motor control, self-organization, etc. , in neural systems do in fact make use of common methods. We find that a "competition and cooperation" type of interaction plays a fundamental role in parallel information processing in the brain. The present volume brings together 23 papers presented at a U. S. -Japan Joint Seminar on "Competition and Cooperation in Neural Nets" which was designed to catalyze better integration of theory and experiment in these areas. It was held in Kyoto, Japan, February 15-19, 1982, under the joint sponsorship of the U. S. National science Foundation and the Japan Society for the Promotion of science. Participants included brain theorists, neurophysiologists, mathematicians, computer scientists, and physicists. There are seven papers from the U. S.

关键词： neurosciences Mathematical and Computational Biology

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Intelligent Virtual Agents 1

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丛书名： Lecture Notes in computer science

1000年

作者： Yukiko Nakano Michael Neff Ana Paiva Marilyn Walker

ISBN: (数字)9783642331978

ISBN: (纸本)9783642331961

This book constitutes the refereed proceedings of the 12th International Conference on Intelligent Virtual Agents, IVA 2012, held in Santa Cruz, CA, USA, in September 2012. The 17 revised full papers presented together with 31 short papers and 18 poster papers were carefully reviewed and selected from numerous submissions. The papers are organized in topical sections on IVAs on learning environments; emotion and personality; evaluation and empirical studies; multimodal perception and expression; narrative and interactive applications; social interaction; authoring and tools; conceptual frameworks.

关键词： Artificial Intelligence Information Systems Applications (incl. Internet) computer Communication Networks Image Processing and computer Vision User Interfaces and Human computer Interaction Simulation and Modeling

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