Fuzzy Modelling Paradigms and Practice

Fuzzy Modelling: Paradigms and Practice provides an up-to-date and authoritative compendium of fuzzy models, identification algorithms and applications. Chapters in this book have been written by the leading scholars and researchers in their respective su

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Paradigms and Practice

INTERNATIONAL SERIES IN INTELLIGENT TECHNOLOGIES

Prof. Dr. Dr. h.c. Hans-Jiirgen Zimmermann, Editor European Laboratory for Intelligent Techniques Engineering Aachen, Germany Other books in the series:

Applied Research in Fuzzy Technology by Anca L. Ralescu

Analysis and Evaluation of Fuzzy Systems by Akira Ishikawa and Terry L. Wilson

Fuzzy Logic and Intelligent Systems edited by Hua Li and Madan Gupta

Fuzzy Set Theory and Advanced Mathematical Applications edited by Da Ruan

Fuzzy Databases: Principles and Applications by Frederick E. Petry with Patrick Bose

Distributed Fuzzy Control of Multivariable Systems by Alexander Gegov

FUZZY MODELLING Paradigms and Practice

edited by

Witold Pedrycz

University of Manitoba, Canada

.., ~

KLUWER ACADEMIC PUBLISHERS Boston / Dordrecht / London

Distributors for North America: Kluwer Academic Publishers 101 Philip Drive Assinippi Park Norwell, Massachusetts 02061 USA

Distributors for all other countries: Kluwer Academic Publishers Group Distribution Centre Post Office Box 322 3300 AH Dordrecht, THE NETHERLANDS

Library of Congress Cataloging-in-Publication Data A C.I.P. Catalogue record for this book is available from the Library of Congress.

ISBN-13: 978-1-4612-8589-2 e-ISBN-13: 978-1-4613-1365-6 DOl: 10.1007/978-1-4613-1365-6

Copyright

1996 by Kluwer Academic Publishers Softcover reprint of the hardcover 1st edition 1996 ©

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, mechanical, photocopying, recording, or otherwise, without the prior written permission of the publisher, Kluwer Academic Publishers, 101 Philip Drive, Assinippi Park, Norwell, Massachusetts 02061

Printed on acidlree paper.

CONTENTS EDITOR'S PREFACE

XVll

PART 1: MODELLING WITH FUZZY SETS 1.1. FUZZY MODELS: METHODOLOGY, DESIGN, APPLICATIONS, AND CHALLENGES W Pedrycz 1.

INTRODUCTORY COMMENTS

2. 3. 4. 5.

A GENERAL TOPOLOGY OF FUZZY MODELS

3 5

FUZZY ENCODING AND DECODING

6

DESIGN OF LOSSLESS COMMUNICATION CHANNELS

9

CLASSES OF FUZZY MODELS

10

6.

VERIFICATION AND VALIDATION OF FUZZY MODELS

18

7. 8.

CONCLUSIONS

20 21

REFERENCES

PART 2: RELATIONAL MODELS 2.1.

FUNDAMENTALS OF FUZZY RELATIONAL CALCULUS S. Gottwald

1.

FUZZY RELATIONS

2.

PROPERTIES OF FUZZY RELATIONS

25 32

3. 4.

RELATIONAL EQUATIONS AND FUZZY CONlROL

38

REFERENCES

46

vi

2.2.

MAX-MIN RELATIONAL NETWORKS A. Blanco, M. Delgado, I. Requena

1.

INTRODUCTION

49

2.

MODELS OF (FUZZY) SYSTEMS

50

3.

IDENTIFICATION OF FUZZY RELATIONAL EQUATIONS BY FUZZY NETWORKS WITHOUT ACTIVATION FUNCTION

4.

EXPERIMENTAL COMPARATIVE STUDIES

56 67

5.

REFERENCES

68

2.3.

RELATIONAL CALCULUS IN DESIGNING FUZZY PETRI NETWORKS H. Scarpelli, F. Gomide

1.

INTRODUCTION

71

2. 3. 4.

THE HIGH LEVEL FUZZY PE1RI NET MODEL HLFPN AND RELATIONAL EQUATIONS THE ROLE OF RELATIONAL EQUATIONS IN BACKWARD REASONING

73

84

CONCLUSIONS REFERENCES

87 87

5. 6.

81

2.4. PREDICTION IN RELATIONAL MODELS J. Valente