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Assessing Similarity between Cases by Means of Fuzzy Rules
Mälardalen University, School of Innovation, Design and Engineering.ORCID iD: 0000-0001-9857-4317
2009 (English)In: 2009 IEEE INTERNATIONAL CONFERENCE ON FUZZY SYSTEMS, VOLS 1-3, 2009, 1953-1958 p.Conference paper, Published paper (Other academic)
Abstract [en]

The concept of similarity plays a fundamental role in case-based reasoning. However, the meaning of "similarity" can vary in different situations and remains an issue. This paper proposes a novel similarity model consisting of fuzzy rules to represent the semantics and evaluation criteria for similarity. We believe that fuzz), if-then rules present a more powerful and flexible means to capture domain knowledge for utility oriented similarity modeling than traditional similarity measures based on feature weighting. Fuzzy rule-based reasoning is utilized as a case matching mechanism to determine whether and to which extent a known case in the case library is similar to a given problem in query. Further, we explain that such fuzzy rules for similarity assessment can be learned from the case library. The key to achieving this is pair-wise comparisons of cases with known solutions in the case library such that sufficient training samples can be derived for fuzzy rule learning. The evaluations conducted have shown that the proposed method yields more precise similarity values to approximate case utility than conventional ways of similarity modeling and that fuzzy similarity rules can be learned from a rather small case base without the risk of over-fitting.

Place, publisher, year, edition, pages
2009. 1953-1958 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:mdh:diva-19994DOI: 10.1109/FUZZY.2009.5277293ISI: 000274242600341Scopus ID: 2-s2.0-71249101724ISBN: 978-1-4244-3596-8 (print)OAI: oai:DiVA.org:mdh-19994DiVA: diva2:635589
Conference
18th IEEE International Conference on Fuzzy Systems Location: Jeju Isl, SOUTH KOREA Date: AUG 20-24, 2009
Available from: 2013-07-04 Created: 2013-06-26 Last updated: 2013-12-03Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf