Uncertainty and Information: Foundations of Generalized Information Theory / Edition 1

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Overview

Deal with information and uncertainty properly and efficiently using tools emerging from generalized information theory

Uncertainty and Information: Foundations of Generalized Information Theory contains comprehensive and up-to-date coverage of results that have emerged from a research program begun by the author in the early 1990s under the name "generalized information theory" (GIT). This ongoing research program aims to develop a formal mathematical treatment of the interrelated concepts of uncertainty and information in all their varieties. In GIT, as in classical information theory, uncertainty (predictive, retrodictive, diagnostic, prescriptive, and the like) is viewed as a manifestation of information deficiency, while information is viewed as anything capable of reducing the uncertainty. A broad conceptual framework for GIT is obtained by expanding the formalized language of classical set theory to include more expressive formalized languages based on fuzzy sets of various types, and by expanding classical theory of additive measures to include more expressive non-additive measures of various types.

This landmark book examines each of several theories for dealing with particular types of uncertainty at the following four levels:
* Mathematical formalization of the conceived type of uncertainty
* Calculus for manipulating this particular type of uncertainty
* Justifiable ways of measuring the amount of uncertainty in any situation formalizable in the theory
* Methodological aspects of the theory

With extensive use of examples and illustrations to clarify complex material and demonstrate practical applications, generous historical and bibliographical notes, end-of-chapter exercises to test readers' newfound knowledge, glossaries, and an Instructor's Manual, this is an excellent graduate-level textbook, as well as an outstanding reference for researchers and practitioners who deal with the various problems involving uncertainty and information.An Instructor's Manual presenting detailed solutions to all the problems in the book is available from the Wiley editorial department.

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Editorial Reviews

From the Publisher
"..will establish a better understanding of the complex concepts…will make significant contributions toward stimulating research in the area of generalized information theory." (Computing Reviews.com, October 17, 2006)

"…contains comprehensive and up-to-date coverage…can serve as a graduate-level text and a reference for researchers and practitioners…" (IEEE Computer Magazine, February 2006)

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Product Details

  • ISBN-13: 9780471748670
  • Publisher: Wiley
  • Publication date: 11/25/2005
  • Edition description: New Edition
  • Edition number: 1
  • Pages: 499
  • Product dimensions: 6.38 (w) x 9.43 (h) x 1.11 (d)

Meet the Author

GEORGE J. KLIR, PhD, is currently Distinguished Professor of Systems Science at Binghamton University, SUNY. Since immigrating to the U.S. in 1966, he has held positions at UCLA, Fairleigh Dickinson University, and Binghamton University. He is a Life Fellow of IEEE, IFSA, and the Netherlands Institute for Advanced Studies. He has served as president of SGSR, IFSR, NAFIPS, and IFSA. He has published over 300 research papers and sixteen books, and has edited ten books. He has also served as Editor in Chief of the International Journal of General Systems since 1974 and of the IFSR International Book Series on Systems Science and Engineering since 1985. He has received numerous professional awards, including five honorary doctoral degrees, Bernard Bolzano's Gold Medal, Arnold Kaufmann's Gold Medal, and the SUNY Chancellor's Award for "Exemplary Contributions to Research and Scholarship." He is listed in Who's Who in America and Who's Who in the World. His current research interests include intelligent systems, soft computing, generalized information theory, systems modeling and design, fuzzy systems, and the theory of generalized measures. He has guided twenty-nine successful doctoral dissertations in these areas. Some of his research has been funded by grants from NSF, ONR, the United States Air Force, NASA, Sandia Labs, NATO, and various industries.

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Table of Contents

Preface.

Acknowledgments.

1 Introduction.

1.1. Uncertainty and Its Significance.

1.2. Uncertainty-Based Information.

1.3. Generalized Information Theory.

1.4. Relevant Terminology and Notation.

1.5. An Outline of the Book.

Notes.

Exercises.

2 Classical Possibility-Based Uncertainty Theory.

2.1. Possibility and Necessity Functions.

2.2. Hartley Measure of Uncertainty for Finite Sets.

2.2.1. Simple Derivation of the Hartley Measure.

2.2.2. Uniqueness of the Hartley Measure.

2.2.3. Basic Properties of the Hartley Measure.

2.2.4. Examples.

2.3. Hartley-Like Measure of Uncertainty for Infinite Sets.

2.3.1. Definition.

2.3.2. Required Properties.

2.3.3. Examples.

Notes.

Exercises.

3 Classical Probability-Based Uncertainty Theory.

3.1. Probability Functions.

3.1.1. Functions on Finite Sets.

3.1.2. Functions on Infinite Sets.

3.1.3. Bayes’ Theorem.

3.2. Shannon Measure of Uncertainty for Finite Sets.

3.2.1. Simple Derivation of the Shannon Entropy.

3.2.2. Uniqueness of the Shannon Entropy.

3.2.3. Basic Properties of the Shannon Entropy.

3.2.4. Examples.

3.3. Shannon-Like Measure of Uncertainty for Infinite Sets.

Notes.

Exercises.

4 Generalized Measures and Imprecise Probabilities.

4.1. Monotone Measures.

4.2. Choquet Capacities.

4.2.1. Möbius Representation.

4.3. Imprecise Probabilities: General Principles.

4.3.1. Lower and Upper Probabilities.

4.3.2. Alternating Choquet Capacities.

4.3.3. Interaction Representation.

4.3.4. Möbius Representation.

4.3.5. Joint and Marginal Imprecise Probabilities.

4.3.6. Conditional Imprecise Probabilities.

4.3.7. Noninteraction of Imprecise Probabilities.

4.4. Arguments for Imprecise Probabilities.

4.5. Choquet Integral.

4.6. Unifying Features of Imprecise Probabilities.

Notes.

Exercises.

5 Special Theories of Imprecise Probabilities.

5.1. An Overview.

5.2. Graded Possibilities.

5.2.1. Möbius Representation.

5.2.2. Ordering of Possibility Profiles.

5.2.3. Joint and Marginal Possibilities.

5.2.4. Conditional Possibilities.

5.2.5. Possibilities on Infinite Sets.

5.2.6. Some Interpretations of Graded Possibilities.

5.3. Sugeno l-Measures.

5.3.1. Möbius Representation.

5.4. Belief and Plausibility Measures.

5.4.1. Joint and Marginal Bodies of Evidence.

5.4.2. Rules of Combination.

5.4.3. Special Classes of Bodies of Evidence.

5.5. Reachable Interval-Valued Probability Distributions.

5.5.1. Joint and Marginal Interval-Valued Probability Distributions.

5.6. Other Types of Monotone Measures.

Notes.

Exercises.

6 Measures of Uncertainty and Information.

6.1. General Discussion.

6.2. Generalized Hartley Measure for Graded Possibilities.

6.2.1. Joint and Marginal U-Uncertainties.

6.2.2. Conditional U-Uncertainty.

6.2.3. Axiomatic Requirements for the U-Uncertainty.

6.2.4. U-Uncertainty for Infinite Sets.

6.3. Generalized Hartley Measure in Dempster–Shafer Theory.

6.3.1. Joint and Marginal Generalized Hartley Measures.

6.3.2. Monotonicity of the Generalized Hartley Measure.

6.3.3. Conditional Generalized Hartley Measures.

6.4. Generalized Hartley Measure for Convex Sets of Probability Distributions.

6.5. Generalized Shannon Measure in Dempster-Shafer Theory.

6.6. Aggregate Uncertainty in Dempster–Shafer Theory.

6.6.1. General Algorithm for Computing the Aggregate Uncertainty.

6.6.2. Computing the Aggregated Uncertainty in Possibility Theory.

6.7. Aggregate Uncertainty for Convex Sets of Probability Distributions.

6.8. Disaggregated Total Uncertainty.

6.9. Generalized Shannon Entropy.

6.10. Alternative View of Disaggregated Total Uncertainty.

6.11. Unifying Features of Uncertainty Measures.

Notes.

Exercises.

7 Fuzzy Set Theory.

7.1. An Overview.

7.2. Basic Concepts of Standard Fuzzy Sets.

7.3. Operations on Standard Fuzzy Sets.

7.3.1. Complementation Operations.

7.3.2. Intersection and Union Operations.

7.3.3. Combinations of Basic Operations.

7.3.4. Other Operations.

7.4. Fuzzy Numbers and Intervals.

7.4.1. Standard Fuzzy Arithmetic.

7.4.2. Constrained Fuzzy Arithmetic.

7.5. Fuzzy Relations.

7.5.1. Projections and Cylindric Extensions.

7.5.2. Compositions, Joins, and Inverses.

7.6. Fuzzy Logic.

7.6.1. Fuzzy Propositions.

7.6.2. Approximate Reasoning.

7.7. Fuzzy Systems.

7.7.1. Granulation.

7.7.2. Types of Fuzzy Systems.

7.7.3. Defuzzification.

7.8. Nonstandard Fuzzy Sets.

7.9. Constructing Fuzzy Sets and Operations.

Notes.

Exercises.

8 Fuzzification of Uncertainty Theories.

8.1. Aspects of Fuzzification.

8.2. Measures of Fuzziness.

8.3. Fuzzy-Set Interpretation of Possibility Theory.

8.4. Probabilities of Fuzzy Events.

8.5. Fuzzification of Reachable Interval-Valued Probability Distributions.

8.6. Other Fuzzification Efforts.

Notes.

Exercises.

9 Methodological Issues.

9.1. An Overview.

9.2. Principle of Minimum Uncertainty.

9.2.1. Simplification Problems.

9.2.2. Conflict-Resolution Problems.

9.3. Principle of Maximum Uncertainty.

9.3.1. Principle of Maximum Entropy.

9.3.2. Principle of Maximum Nonspecificity.

9.3.3. Principle of Maximum Uncertainty in GIT.

9.4. Principle of Requisite Generalization.

9.5. Principle of Uncertainty Invariance.

9.5.1. Computationally Simple Approximations.

9.5.2. Probability–Possibility Transformations.

9.5.3. Approximations of Belief Functions by Necessity Functions.

9.5.4. Transformations Between l-Measures and Possibility Measures.

9.5.5. Approximations of Graded Possibilities by Crisp Possibilities.

Notes.

Exercises.

10 Conclusions.

10.1. Summary and Assessment of Results in Generalized Information Theory.

10.2. Main Issues of Current Interest.

10.3. Long-Term Research Areas.

10.4. Significance of GIT.

Notes.

Appendix A Uniqueness of the U-Uncertainty.

Appendix B Uniqueness of Generalized Hartley Measure in the Dempster–Shafer Theory.

Appendix C Correctness of Algorithm 6.1.

Appendix D Proper Range of Generalized Shannon Entropy.

Appendix E Maximum of GSa in Section 6.9.

Appendix F Glossary of Key Concepts.

Appendix G Glossary of Symbols.

Bibliography.

Subject Index.

Name Index.

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