Encyclopedia of Database Systems

2018 Edition
| Editors: Ling Liu, M. Tamer Özsu

Fuzzy Models

  • Gabriella PasiEmail author
Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-8265-9_925


Aggregation operators; Flexible query languages; Fuzzy information retrieval


The application of fuzzy set theory to information retrieval (IR) is aimed at the definition of retrieval techniques capable of modeling, at least to some extent, the subjectivity, vagueness, and imprecision that is intrinsic to the process of locating information relevant to users’ needs. In the context of IR, fuzzy set theory has been applied to several purposes among which:
  • The definition of generalizations of the Boolean retrieval model and in particular the definition of flexible query languages to address the vagueness that may affect query formulation

  • The definition of flexible approaches to XML retrieval

  • The definition of flexible and personalized indexing algorithms

  • The definition of fuzzy thesauri and fuzzy clustering algorithms, which are often employed to extend the functionalities of a basic information retrieval system

  • The definition of flexible aggregation strategies of...

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Recommended Reading

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Informatics, Systems and CommunicationUniversity of Milano-BicoccaMilanItaly

Section editors and affiliations

  • Giambattista Amati
    • 1
  1. 1.Fondazione Ugo BordoniRomeItaly