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A Lattice Structure for the Set of Interval-Valued Fuzzy-Qualitative Labels

  • Francesc Prats
  • , Mónica Sánchez
  • , N. Agell*
  • *Corresponding author for this work

Research output: Book chapterConference contributionpeer-review

Abstract

Order-of-magnitude models in qualitative reasoning are basic theoretical tools to model real-world problems in which only incomplete qualitative knowledge is available. In this paper, we introduce interval-valued fuzzy sets into order-of-magnitude qualitative reasoning, generalizing the order-of-magnitude spaces of both qualitative labels and fuzzy-qualitative labels. We present a new lattice structure of linguistic descriptions in an interval-valued fuzzy framework, and introduce the interval-valued fuzzy-qualitative labels as interval-valued fuzzy sets with certain requirements. We define two operations related to the inclusion in the set of interval-valued fuzzy-qualitative labels. The set of interval-valued fuzzy-qualitative labels is structured as a lattice with these two operations.

Original languageEnglish
Title of host publicationArtificial Intelligence Research and Development
Subtitle of host publicationCurrent Challenges, New Trends and Applications
EditorsZoe Falomir, Enric Plaza, Karina Gibert
PublisherIOS Press
Pages47-56
Number of pages10
ISBN (Print)9781614999171
DOIs
Publication statusPublished - 2018
Externally publishedYes

Publication series

NameFrontiers in Artificial Intelligence and Applications
Volume308
ISSN (Print)0922-6389

Keywords

  • entropy
  • interval-valued fuzzy set
  • lattice
  • qualitative reasoning

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