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Fuzzy Reasoning in Decision Making and Optimization

  • Book
  • © 2002

Overview

Authors:
  1. Christer Carlsson

    1. Institute for Advanced Management Systems Research, Åbo Akademi University, Åbo, Finland

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  2. Robert Fullér

    1. Institute for Advanced Management Systems Research, Åbo Akademi University, Åbo, Finland
      Department of Operations Research, Eötvös Loránd University, Budapest, Hungary

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  • Mathematical concepts with applications in management and information systems
  • Comprehensible for practitioners
  • Includes supplementary material: sn.pub/extras

Part of the book series: Studies in Fuzziness and Soft Computing (STUDFUZZ, volume 82)

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Table of contents (7 chapters)

  1. Front Matter

    Pages I-XIII
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  2. Fuzzy Sets and Fuzzy Logic

    • Christer Carlsson, Robert Fullér
    Pages 1-63

  3. Fuzzy Multicriteria Decision Making

    • Christer Carlsson, Robert Fullér
    Pages 65-99

  4. Fuzzy Reasoning

    • Christer Carlsson, Robert Fullér
    Pages 101-121

  5. Fuzzy Optimization

    • Christer Carlsson, Robert Fullér
    Pages 123-155

  6. Fuzzy Reasoning for Fuzzy Optimization

    • Christer Carlsson, Robert Fullér
    Pages 157-205

  7. Applications in Management

    • Christer Carlsson, Robert Fullér
    Pages 207-253

  8. Future Trends in Fuzzy Reasoning and Decision Making

    • Christer Carlsson, Robert Fullér
    Pages 255-318

  9. Back Matter

    Pages 319-338
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Keywords

About this book

Many decision-making tasks are too complex to be understood quantitatively, however, humans succeed by using knowledge that is imprecise rather than precise. Fuzzy logic resembles human reasoning in its use of imprecise informa­ tion to generate decisions. Unlike classical logic which requires a deep under­ standing of a system, exact equations, and precise numeric values, fuzzy logic incorporates an alternative way of thinking, which allows modeling complex systems using a higher level of abstraction originating from our knowledge and experience. Fuzzy logic allows expressing this knowledge with subjective concepts such as very big and a long time which are mapped into exact numeric ranges. Since knowledge can be expressed in a more natural by using fuzzy sets, many decision (and engineering) problems can be greatly simplified. Fuzzy logic provides an inference morphology that enables approximate human reasoning capabilities to be applied to knowledge-based systems. The theory of fuzzy logic provides a mathematical strength to capture the un­ certainties associated with human cognitive processes, such as thinking and reasoning. The conventional approaches to knowledge representation lack the means for representating the meaning of fuzzy concepts. As a consequence, the approaches based on first order logic do not provide an appropriate con­ ceptual framework for dealing with the representation of commonsense knowl­ edge, since such knowledge is by its nature both lexically imprecise and non­ categorical.

Authors and Affiliations

  • Institute for Advanced Management Systems Research, Åbo Akademi University, Åbo, Finland

    Christer Carlsson, Robert Fullér

  • Department of Operations Research, Eötvös Loránd University, Budapest, Hungary

    Robert Fullér

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