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Fuzzifying the Constraint Hierarchies Framework

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Part of the book series:Lecture Notes in Computer Science ((LNCS,volume 1520))

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Abstract

The Constraint Hierarchy (CH) framework is used to tacklemultiple criteria selection (MCS), consisting of a set of candidates and a set of, possibly competing, criteria for selecting the ”best“ candidate(s). In this paper, we identify aspects of the CH framework for further enancement so as to model and solve MCS problems more accurately. We propose the Fuzzy Constraint Hierarchies framework, which allows constraints to belong to, possibly, more than one level in a constraint hierarchy to a varying degree. We also propose to replace the standard equality relation = used in valuation comparators of the CH framework by the α-approximate equality relation =a(α) for providing more flexible control over the handling of valuations with close error values. These proposals result in three new classes of valuation comparators. Formal properties of the new comparators are given, wherever possible.

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References

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Author information

Authors and Affiliations

  1. Department of Computer Science and Engineering, The Chinese University of Hong Kong, Shantin, N.T, Hong Kong, China

    R. W. L. Kam & J. H. M. Lee

Authors
  1. R. W. L. Kam

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  2. J. H. M. Lee

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Editor information

Editors and Affiliations

  1. School of Computing and Information Technology, Griffith University, Nathan, Queensland, 4111, Australia

    Michael Maher

  2. ILOG S.A., 9, rue de Verdun, BP 85, F-94253, Gentilly Cedex, France

    Jean-Francois Puget

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© 1998 Springer-Verlag Berlin Heidelberg

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Kam, R.W.L., Lee, J.H.M. (1998). Fuzzifying the Constraint Hierarchies Framework. In: Maher, M., Puget, JF. (eds) Principles and Practice of Constraint Programming — CP98. CP 1998. Lecture Notes in Computer Science, vol 1520. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-49481-2_21

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Chapter
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eBook
JPY 11439
Price includes VAT (Japan)
  • Available as PDF
  • Read on any device
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Softcover Book
JPY 14299
Price includes VAT (Japan)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
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Purchases are for personal use only


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