TítolKnowledge Engineering for a Document Retrieval System
Publication TypeJournal Article
Year of Publication1990
Authorsde Mántaras RLópez, Cortés U, Manero J., Plaza E
JournalFuzzy Sets and Systems

A document retrieval system based on fuzzy set theory is decribed in this paper. Weights, as fuzzy characteristic functions, can be assigned to descriptors in the query expression and to index terms in the document description. Fuzzy set theory allows one to calculate a relevance value for each document from weights assigned to documents and queries. The relevance value for each document is calculated following different models. An elicitation mechanism is used to generate and to enhance the thesaurus structure. The thesaurus guides the retrieval operations.