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International Conference on Simulation of Semiconductor Processes and Devices (SISPAD)

作者： W. Joppich S. Mijalkovic Institute for Algorithms and Scientific Computing GMD-German National Research Center of Information Technology Sankt Augustin Germany Faculty of Electronic Engineering University of Niš Nis Serbia

In this paper a rigorous approach to simulate thermal oxidation and diffusion phenomena is presented. Because the numerical problems will increase in future, especially when looking towards three-dimensional process simulation, special emphasis is laid upon a parallel approach which additionally uses an optimal order solution method. Based on an environment for the parallel solution of elliptic and parabolic PDEs, L/sub i/SS, such a tool was developed.

关键词： Oxidation Diffusion processes Computational modeling Thermal engineering Computational geometry Boron Multigrid methods Partial differential equations Information technology scientific computing

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A method for understanding intentions of indirect speech acts in natural language interfaces

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SYSTEMS AND COMPUTERS IN JAPAN 1996年第1期27卷 77-91页

作者： Mima, H Aoe, J Fuketa, M Hayashi, Y Member Faculty of Engineering The University of Tokushima Tokushima Japan 770 Jun-ichi Aoe received his B.E. and M.E. degrees in Electronic Engineering from the University of Tokushima Tokushima Japan in 1974 and 1976 respectively and his Ph.D. degree in Communication Engineering from the University of Osaka Japan in 1980. Since 1976 he has been with the University of Tokushima. He is currently a Professor in the Department of Information Science and Intelligent Systems at the University of Tokushima. He is the author of about 50 scientific papers. His research interests include computer algorithms in software engineering and natural language processing. Dr. Aoe is editing Computer Algorithms Series of the IEEE Computer Society Press and author of two books: Computer Algorithms-Key Search Strategies in 1991 and String Pattern Matching Strategies in 1994. He received a Best Author Award from the Information Processing Society of Japan in 1993. He is a member of the Association for Computing Machinery the American Association for Artificial Intelligence the Association for Computational Linguistics and the Information Processing Society of Japan the Society for Software Science and Technology the Japanese Society for Artificial Intelligence and the Association for Natural Language Processing of Japan. Nonmember

In an attempt to propose a robust method for understanding natural language (NL) interface commands, a scheme is proposed that infers intentions from an indirect speech-act that does not express users' real intentions explicitly. This method classifies the real intentions of the indirect speech-act into: 1) refusal;2) reversal;3) restriction;4) benefit;and 5) disability. Further, concepts are abstracted for operations, e.g., displaying, moving, and deleting information systems;and constructing the operation knowledge base. This knowledge based comprises operational concepts and the relationships between them. These relationships are assigned the foregoing classifications for intentions. In addition, we construct the knowledge base of objects for the target of operations, e.g., files, figures, strings. This knowledge base contains the relationships: a) antonym;b) exclusive;c) part-of, between the objects;and uses these relations to infer the transitions between the objects. An algorithm is the proposed to infer concepts for operations and concepts for target objects of operations that may represent the user's actual intentions. This proposal scheme was tested with requests on UNIX and a commercially available Japanese Word Processor. The system successfully inferred the intentions for approximately 80 percent of the user's indirect speech-act.

关键词： natural language interface indirect speech act inference of intention

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CONTACT PATTERN-INDUCED PAIR POTENTIALS FOR PROTEIN FOLD RECOGNITION

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PROTEIN ENGINEERING 1995年第4期8卷 339-351页

作者： SELBIG, J German National Research Center for Information Technology Institute for Algorithms and Scientific Computing—Molecular BiomformaticsPO Box 1316 SchloB Birlinghoven D-53731 Sankt Augustin Germany

The protein structure prediction problem is considered as a problem of fitting a sequence into a folding motif, We focus on finding an approximative structure representation providing the best preferences or contact energies. A 2-D structure description in the form of specific contact matrices is used, The main features of our approach are (i) only contacts involved in characteristic interaction patterns are considered, (ii) amino acid pair preferences or contact energies related to these interaction patterns are derived from the structural database and (iii) from the evaluation of individual structure elements, hypotheses on the alignment of a new sequence to a given structure may be derived, Results are demonstrated in particular to examples of the blue copper proteins.

关键词： CONTACT MATRIX CONTACT PATTERN MOTIF RECOGNITION PROTEIN STRUCTURE PREDICTION

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High performance C++

High performance C++

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International Conference and Exhibition on High-Performance computing and Networking

作者： Wolf, K Holtz, A Lang, M Institute for Algorithms and Scientific Computing (SCAI) German National Research Center for Computer Science (GMD) Schloss Birlinghoven Sankt Augustin D-53754 Germany

ISBN: (纸本)3540593934

HPC++ is a object-oriented programming environment dedicated to distributed memory parallel computers. It is based on a process model and integrates various parallel programming paradigms. Modularisation, interfaces and dynamic configuration are basic features. Parallel prototypes may be encapsulated in subnets. In the context of an existing commercial CASE tool HPC++ will be used as target language for the translation from graphical design method into code. Within one year, exploitation of HPC++ will be started offering an object-oriented library on top of standard parallel runtime systems.

关键词： Object oriented programming

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Exponential time analysis of confluent and boundary eNCE graph languages 20th

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20th International Workshop on Graph-Theoretic Concepts in Computer Science, WG 1994

作者： Skodinis, K. Wanke, E. Department of Computer Science University of Passau PassauD-94032 Germany German National Research Center for Computer Science Institute for Algorithms and Scientific Computing Sankt AugustinD-53757 Germany

ISBN: (纸本)3540590714

eNCE (edge label neighborhood controlled) graph grammars belong to the most powerful graph rewriting systems with single-node graphs on the left-hand side of the productions. From an algorithmic point of view, confluent and boundary eNCE graph grammars are the most interesting subclasses of eNCE graph grammars. In confluent eNCE graph grammars, the order in which nonterminal nodes are substituted is irrelevant for the resulting graph. In boundary eNCE graph grammars, nonterminal nodes are never adjacent. In this paper, we show that given a confluent or boundary eNCE graph grammar G, the problem whether the language L(G) defined by G is empty, is DEXPTIME-complete. © Springer-Verlag Berlin Heidelberg 1995.

关键词： Graph theory

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NORMAL FRAMES FOR NON-RIEMANNIAN CONNECTIONS

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CLASSICAL AND QUANTUM GRAVITY 1995年第11期12卷 L103-L105页

作者： HARTLEY, D Institute for Algorithms and Scientific Computing GMD - German National Research Center for Information Technology St Augustin Germany

The principal properties of geodesic normal coordinates are the vanishing of the connection components and first derivatives of the metric components at some point. It is well known that these hold only at points where the connection has vanishing torsion and non-metricity. However, it is shown that normal frames, possessing the essential features of normal coordinates, can still be constructed when the connection is non-Riemannian.

关键词： Mathematical physics Gravitation and cosmology

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Medium-range weather forecast on parallel systems

Medium-range weather forecast on parallel systems

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Scalable High Performance computing Conference

作者： U. Gartel W. Joppich A. Schuller Inst. for Algorithms & Sci. Comput. German Inst. Res. Center for Comput. Sci. Sankt Augustin Germany German National Research Center for Computer Science (GMD) Institute for Algorithms and Scientific Computing Sankt Augustin Germany

GMD and ECMWF (European Centre for Medium-Range Weather Forecasts) joined forces in autumn 1992 in order to parallelize the Integrated Forecasting System (IFS), that is run operationally each day for the European medium-range weather prediction. The parallelization is performed in a portable way with all relevant parallel systems as target machines. Meanwhile, the parallelization of the 3D weather model has been achieved: the code runs with excellent parallel efficiencies of 90% and more on different parallel systems such as the SP1 (IBM) and the CM5 (Thinking Machines). First optimizations promise significant further improvements.< >

关键词： Weather forecasting Concurrent computing Wind forecasting Grid computing Partitioning algorithms Computer science scientific computing Economic forecasting Numerical simulation Supercomputers

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Portable and efficient factorization algorithms on the IBM 3090/VF 89

Portable and efficient factorization algorithms on the IBM 3...

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3rd International Conference on Supercomputing, ICS 1989

作者： Mayes, Peter Di Brozolo, Giuseppe Radicati IBM European Center for Scientific and Engineering Computing IBM Italia Spa Via Giorgione 159 I-Roma00147 Italy Numerical Algorithms Group Ltd. Wilkinson House Jordan Hill Road OxfordOX2 8DR United Kingdom

ISBN: (纸本)0897913094

This paper describes a series of experiments performed with block versions of the LU, Cholcsky and QR factorizations using Level 3 BLAS on one processor of the IBM 3090/VF. We show that the LAPACK approach to designing linear algebra software that is both portable and efficient, namely calling optimized versions of the Level 3 BLAS kernels, is likely to be a succesful way to exploit machines with hierarchical memories. © 1989 ACM.

关键词： Linear algebra

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Computational Life Sciences 1

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丛书名： Studies in Big Data

1000年

作者： Jens Dörpinghaus Sebastian Schaaf Vera Weil Alexander Apke

ISBN: (数字)9783031084119

ISBN: (纸本)9783031084102;9783031084133

This book broadly covers the given spectrum of disciplines in Computational Life Sciences, transforming it into a strong helping hand for teachers, students, practitioners and researchers. In Life Sciences, problem-solving and data analysis often depend on biological expertise combined with technical skills in order to generate, manage and efficiently analyse big data. These technical skills can easily be enhanced by good theoretical foundations, developed from well-chosen practical examples and inspiring new strategies. This is the innovative approach of Computational Life Sciences-Data Engineering and Data Mining for Life Sciences: We present basic concepts, advanced topics and emerging technologies, introduce algorithm design and programming principles, address data mining and knowledge discovery as well as applications arising from real projects. Chapters are largely independent and often flanked by illustrative examples and practical advise.

关键词： Data Engineering Bioinformatics Big Data Computational Intelligence

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Carl Adam Petri 1

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1000年

作者： Einar Smith

ISBN: (数字)9783662480939

ISBN: (纸本)9783662480922;9783662516836

The book presents the life and works of one of Germany's most famous computer scientists, Carl Adam Petri. It is written in a vivid and entertaining manner, providing an in-depth discussion of the background behind Petri's best-known contribution to computer science, the Petri net. In this way the book can be read as a first introduction to nets, but it also covers the theoretical, physical and philosophical foundations behind nets, thus facilitating a comprehensive understanding of the wider range of Petri's works. The book is intended for readers with a previous knowledge in computer science, as well as for “interested non-professionals”, who want to get to know a remarkable personality of contemporary science.

关键词： History of computing Mathematics, general Philosophy, general Theory of Computation

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