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IEEE International Conference on systems, Man and Cybernetics

作者： H. Handa K. Watanabe O. Katai T. Konishi M. Baba Department of Information Technology Faculty of Engineering Okayama University Okayama Japan Department of Systems Science Graduate School of Informatics Kyoto University Kyoto Japan

We discuss a coevolutionary genetic algorithm for constraint satisfaction. Our basic idea is to explore effective genetic information in the population, i.e., schemata, and to exploit the genetic information in order to guide the population to better solutions. Our coevolutionary genetic algorithm (CGA) consists of two GA populations; the first GA, called "H-GA", searches for the solutions in a given environment (problem), and the second GA, called "P-GA", searches for effective genetic information involved in the H-GA, namely, good schemata. Thus, each individual in P-GA consists of alleles in H-GA or "don't care" symbol representing a schema in the H-GA. These GA populations separately evolve in each genetic space at different abstraction levels and affect with each other by two genetic operators: "superposition" and "transcription". We then applied our CGA to constraint satisfaction problems (CSPs) incorporating a new stochastic "repair" operator for P-GA to raise the consistency of schemata with the (local) constraint conditions in CSPs. We carried out two experiments: First, we examined the performance of CGA on various "general" CSPs that are generated randomly for a wide variety of "density" and "tightness" of constraint conditions in the CSPs that are the basic measures of characterizing CSPs. Next, we examined "structured" CSPs involving latent "cluster" structures among the variables in the CSPs. For these experiments, computer simulations confirmed us the effectiveness of our CGA.

关键词： Genetic algorithms Stochastic processes Cultural differences Information technology Genetic engineering informatics Character generation Computational modeling Computer simulation Law

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Healthcare informatics Society of Ireland

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Irish Journal of Medical Science 1999年第4期168卷 276-282页

作者： Rigby, M. Sheridan, A. Draper, R. Stephens, G. Gaffney, P. Grimson, J. Avalos, G. Comerford, F. R. Kanagaratnam, B. Dineen, B. Hamilton, I. Jung, B. Felton, E. Berry, D. Grimson, W. Rice, D. H. Healy, M. Bruce, A. Kelly, J. Carroll, T. Grogan, A. Hurl, G. A. Hyland, D. Roberts, J. Brazil, J. Callanan, I. Devitt, A. O’Brien, T. O’Sullivan, U. M. Peyton, K. Wilson, M. J. Collins, R. Crawley, L. Foley, D. Strachan, H. McBrearty, P. Murnane, R. Murphy, E. Keane, V. Mulvany, F. Sweeney, P. D. Kenny, D. O’Connell, P. R. Balfe, P. Minogue, G. Centre for Health Planning & Management Keele University Keele Staffordshire Britain St. John of God Hospital Stillorgan Hospitaller Order of St. John of God Stillorgan Dept. of Computer Science Trinity College Dublin Clinical Chemistry Laboratory Tallaght Hospital Tallaght Dublin 24 Department of Experimental Medicine Faculty of Medicine National University of Ireland Galway Department of Health Promotion Faculty of Medicine National University of Ireland Galway School of Control Systems & Electrical Engineering Dublin Institute of Technology Ireland Shared Medical Systems Malvern USA Healy Services Dublin Universal Learning Systems Ltd. Dublin The Rotunda Hospital Dublin Mater Misericordiae Hospital Dublin Institute for Healthcare Informatics Dublin First Consulting Group Macclesfield Britain Virus Reference Laboratory UCD Belfield Dublin 4 Cappagh Orthopaedic Hospital Dublin Ireland Southern Health Board Cork Mater Misericordiae Hospital Dublin 7 DSS Dublin Ltd. Ireland University College Dublin Ireland Mary Aikenhead School of Nursing St. Vincent’s Hospital Dublin Blackrock Clinic Dublin Borders Community Health Services NHS Trust Britain James Connolly Memorial Hospital Blanchardstown Dublin 15 Kildare and West Wicklow Mental Health Service for People with A Learning Disability Eastern Health Board Dublin Health Research Board Dublin General Practice Research Unit The Medical Centre Dungloe Dept. of Clinical Biochemistry Our Lady’s Hospital for Sick Children Crumlin Dublin 12

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A tool for process and product assessment of C++ applications

A tool for process and product assessment of C++ application...

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(CSMR) European Conference on Software Maintenance and Reengineering

作者： F. Fioravanti P. Nesi S. Perlini Department of Systems and Informatics Faculty of Engineering University of Florence Italy

The present diffusion of the object oriented paradigm and of the techniques for keeping the development process under control must be supported by suitable tools. These tools should be based on confident and validated object oriented metrics for assessing the several aspects of product and process development: effort, maintainability, reusability, etc.; they should also be capable of supporting the definition of specific metrics, profiles and histograms. These are useful to give the developers and managers an immediate representation of the system status. These tools must also provide metrics suitable for producing confident results from the early phases of the development life cycle. Mechanisms for metrics definition, validation and tuning must be available in order to establish a process of continuous improvement. The paper presents TAC++ (Tool for Analyzing C++ Code) which supports the above mentioned features and includes the most important metrics presented in the literature and many others.

关键词： Lab-on-a-chip informatics Maintenance engineering Ear Continuous improvement Investments

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Reengineering a computerized numerical control towards object-oriented

Reengineering a computerized numerical control towards objec...

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(CSMR) European Conference on Software Maintenance and Reengineering

作者： F. Butera B. Fontanella P. Nesi M. Perfetti CB-Ferrari Group ELEXA S.r.L. Florence Italy Department of Systems and Informatics Faculty of Engineering University of Florence Florence Italy

The experience of reengineering computerized numerical control, CNC, is presented. In the reengineering, several new functionalities and upgrading towards object-orientation were included. The reengineering process was maintained under control in order to complete the process within the deadline with success. Some technical and economical lessons that could be useful for helping one to solve similar problems are discussed.

关键词： Computer numerical control ISO Machine tools Programmable control Actuators Application software Object oriented modeling Electrical capacitance tomography informatics Ear

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Global asymptotic stabilization of MIMO bilinear systems with undamped natural response

Global asymptotic stabilization of MIMO bilinear systems wit...

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IEEE Conference on Decision and Control

作者： Guoping Lu Yufan Zheng C. Zhang Xinghuo Yu Department of .Automatic Control Yantong Institute of Technology Nantong Jiangsu China Institute of Systems Science East China Jiao Tong University Shanghai China Department of Electrical and Electronic Engineering University of Melbourne Parkville VIC Australia Faculty of Informatics and Communication Central Queensland University Rockhampton QLD Australia

ISBN: (纸本)0780343948

This paper considers the problem of globally asymptotic stabilization of multi-input multi-output bilinear systems with undamped natural response. It firstly presents a simple sufficient condition for construction of a static state feedback controller. Then under an additional condition on system detectability, two output dynamic feedback controllers with saturation bounded control are constructed. The globally asymptotic stability of the closed loop systems using these controllers are established by using Lyapunov stability approach.

关键词： MIMO Nonlinear systems Control systems Transient response Sufficient conditions State feedback Adaptive control Asymptotic stability Closed loop systems Lyapunov method

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Royal Academy of Medicine in Ireland - Section of Bioengineering - Proceedings of meeting held in Dundalk, Co. Louth, in February 1998.

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IRISH JOURNAL OF MEDICAL SCIENCE 1998年第4期167卷 256-276页

作者： [Anonymous] Orthopaedic Research Unit The Queen’s University of Belfast School of Biomedical Sciences The Queen’s University of Belfast Howmedica International Ltd. Raheen Industrial Estate Limerick Department of Mechanical Engineering Trinity College Dublin 2 Mater Hospital Dublin 7 Orthopaedic Research Laboratory Århus University Hospital Denmark University of Limerick Limerick Limerick Regional Hospital Raheen Limerick Boston Scientific Ireland Ltd. Galway Department of Mechanical Engineering University College Dublin Dublin Department of Electrical and Electronic Engineering University College Dublin Dublin Bioengineering Research Centre Department of Mechanical Engineering University College Dublin Dublin Northern Ireland Bio-Engineering Centre (NIBEC) School of Electrical and Mechanical Engineering University of Ulster Newtownabbey Department of Mechanical & Manufacturing Engineering The Ashby Building The Queen’s University of Belfast Johnson and Johnson Professional Orthopaedic Division Queensway England Department of Cardiology and Department of Medical Physics & Bioengineering St. James’s Hospital Dublin 8 Burke House Ellison Street Castlebar Royal College of Surgeons in Ireland Department of Surgery Beaumont Hospital Dublin Department of Electronic and Electrical Engineering Trinity College Dublin 2 Department of Aeronautical Engineering The Queen’s University of Belfast Vascular Unit Belfast City Hospital Department of Medical Physics and Bioengineering St. James’s Hospital Dublin 8 Centre for Biomedical Electronics Department of Electronic and Computer Engineering University of Limerick Limerick Department of Mechanical and Aeronautical Engineering University of Limerick Limerick School of Health Sciences University of Ulster Ireland School of Physiotherapy University of Ulster Newtownabbey Clinical Engineering NI Medical Physics Agency Belfast and Radiology Royal Victoria Hospital Musgrave Park Hospital University of Limerick Biomedical Institute (ULBMI) Uni

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Session: Year 2000

Session: Year 2000

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(CSMR) European Conference on Software Maintenance and Reengineering

作者： P. Nesi Department of Systems and Informatics Faculty of Engineering University of Florence Florence Italy

Summary form only given. Start of the above-titled section of the conference proceedings record. The problem of year 2000 is not a trivial task of data transformation from two to four numbers. It can involve changes in data structures, procedure calls, communication protocols, user interface panels, database records, printing forms, etc. For these reasons, changes have to be performed non only in business- and managerialoriented applications but also in mission critical software, development frameworks, CASE tools, etc. Please note that, the first instances of the problem are already occurring in these days, this fact cannot be neglected delaying the time for solving it. These aspects are discussed and addressed by the papers of this session, confirming the complexity of problem and the fact that the solution is surely a very time consuming and error prone task. Thus, the related costs must be covered by benefits, etc. The papers represent an interesting and very useful collection of approaches for managing the Year 2000 problem. Some of these also report the point of views and the strategies applied by many organizations.

关键词： informatics Data structures Protocols User interfaces Databases Software development management Application software Mission critical systems

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Object-oriented analysis of COBOL

Object-oriented analysis of COBOL

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(CSMR) European Conference on Software Maintenance and Reengineering

作者： A. Fantechi P. Nesi E. Somma Department of Systems and Informatics Faculty of Engineering University of Florence Florence Italy

The object-oriented paradigm is considered as the one which best guarantees the investments for renewal. It allows one to produce software with high degrees of reusability and maintainability, and satisfying certain quality characteristics. These features are not obviously automatically guaranteed by the simple adoption of an object-oriented programming language, so a process of re-analysis is needed. In this view, several methods for reengineering old applications according to the object-oriented paradigm have been defined and proposed. A method and tool (C/sub 2/O/sup 2/, COBOL to Object-Oriented) for analyzing COBOL applications in order to extract its object-oriented analysis is presented. The tool identifies classes and their relationships by means of a process of understanding and refinement in which COBOL data structures are analyzed, converted into classes, aggregated, and simplified semi-automatically. The algorithm is also capable of detecting data structures which may cause problems in the Year 2000, as demonstrated with an example.

关键词： Application software Data structures Software maintenance informatics Maintenance engineering Investments Software quality Software reusability Software measurement Computer languages

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A new scenario language for analysis and synthesis of the TV news program 4

A new scenario language for analysis and synthesis of the TV...

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4th International Conference on Multi-Media Modeling, MMM 1997

作者： Kamahara, Junzo Kaneda, Teruya Ikezawa, Masato Shimojo, Shinji Miyahara, Hideo Nishio, Shojiro Information Processing Center Kobe University of Mercantile Marine 5-1-1 Fukae-Minami-Machi Higashinada-Ku Kobe Hyogo658 Japan Department of Informatics and Mathematical Science Graduate School of Engineering Science Osaka University 1-3 Machikaneyama Toyonaka Osaka560 Japan Department of Information Systems Engineering Faculty of Engineering Osaka University 2-1 Yamadaoka Suita Osaka565 Japan

ISBN: (纸本)9810233515

In this paper, we propose a new scenario description language for analysis and dynamic synthesis of the TV news program. The scenario using this language can be reused for composing the daily news program. For the basis of the description language, we propose the media slot model which can specify temporal and systematic constraints in a multimedia presentation easily. We are developing two different applications using the proposed language. © Multimedia Modeling, MMM 1997 - Modeling Multimedia Information and systems. All rights reserved.

关键词： Multimedia systems

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Nonparametric Preventive Maintenance Policy Under Earning Rate Criterion

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IFAC Proceedings Volumes 1997年第18期30卷 1165-1170页

作者： Tadashi Dohi Takashi Aoki Naoto Kaio Shunji Osaki Department of Industrial and Systems Engineering Faculty of Engineering Hiroshima University 4-1 Kagamiyama 1 Chome Higashi-Hiroshima 739 JAPAN Department of Economic Informatics Faculty of Economic Sciences Hiroshima Shudo University 1717 Ohtsuka Numata-cho Asaminami-ku Hiroshima 731-31 JAPAN

The expected profit is frequently applied to an optimality criterion in manufacturing and maintenance operations. In this paper, we consider the optimal PM (preventive maintenance) policy which maximizes the expected earning rate for one-unit systems subject to failure. In particular, the TTT (total time on test) concept is used to estimate directly the optimal PM policy from empirical failure data. The proposed method gives a geometrical interpretation of the underlying probabilistic problem to practitioners as well as a nonparametric estimator of the optimal PM strategy. Finally, numerical examples are presented to show that the TTT method is a useful device to analyze the renewal theoretic maintenance problems.

关键词： Preventive maintenance Reliability analysis Renewal processes Optimization devices Statistical inference Nonparametric identification Operations research

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