Book ChapterDOI
A fuzzy-summary-based approach to faceted search in relational databases
Grégory Smits,Olivier Pivert +1 more
- Vol. 7503, pp 357-370
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This paper presents a faceted search strategy to construct fuzzy queries that relies on precomputed metadata that inform about the data distribution over a predefined vocabulary.Abstract:
Faced with the difficulty of formulating precise queries to retrieve items from large scale databases, interactive interfaces implementing a faceted search strategy help the users navigate through the data by successively selecting facet-value pairs. This paper presents a faceted search strategy to construct fuzzy queries. The interactive query construction process relies on precomputed metadata that inform about the data distribution over a predefined vocabulary.read more
Citations
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Journal ArticleDOI
Fuzziness in database management systems
TL;DR: This comprehensive, bird's view research note combines the state of the art, a brief presentation of the history and some original solutions, and position like views of some prospective future developments of one of the most relevant and interesting areas related to the use of fuzzy logic in database management systems.
Proceedings ArticleDOI
Adequacy of a user-defined vocabulary to the data structure
TL;DR: An approach is proposed to determine and quantify how appropriate a user-defined vocabulary is regarding the structure captured on the data distribution using a clustering method.
Proceedings ArticleDOI
A soft computing approach to agile business intelligence
TL;DR: A novel approach is introduced to let users extract knowledge from a raw dataset in an intuitive way and using their own vocabulary to let domain experts interact with the cluster-based structure and its embedded knowledge.
Mesures d'adéquation entre vocabulaire expert et structure de données
TL;DR: In this article, the authors propose deux mesures for repondre a cette tâche: the premiere est basee sur la comparaison des partitionnements respectivement obtenus a partir de la representation initiale des donnees and a partire des reecrites ; the seconde evalue, dans lespace reecrit, les regroupements identifies dins l'espace initial.
References
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Book
Fuzzy sets
TL;DR: A separation theorem for convex fuzzy sets is proved without requiring that the fuzzy sets be disjoint.
Journal ArticleDOI
A new approach to clustering
TL;DR: A new method of representation of the reduced data, based on the idea of “fuzzy sets,” is proposed to avoid some of the problems of current clustering procedures and to provide better insight into the structure of the original data.
BookDOI
Fundamentals of fuzzy sets
TL;DR: This chapter discusses the development of Fuzzy Set-Theoretic Operators and Quantifiers over time, and some of the techniques used to derive these operators and quantifiers were developed in the 1980s and 1990s.
Journal ArticleDOI
SQLf: a relational database language for fuzzy querying
Patrick Bosc,Olivier Pivert +1 more
TL;DR: This paper deals with imprecise querying of regular relational databases by extending an existing query language, namely SQL, which concerns the integration in the extended language of many propositions that have been made elsewhere.
Journal ArticleDOI
Fuzzy cardinality and the modeling of imprecise quantification
Didier Dubois,Henri Prade +1 more
TL;DR: A systematic investigation of the cardinality of a fuzzy set is performed which unifies and improves previous attempts and the usefulness of fuzzy cardinality for meaning representation of statements or queries involving fuzzy linguistic quantifiers is emphasized.