A Fuzzy Logic intelligent agent for Information Extraction: Introducing a new Fuzzy Logic-based term weighting scheme

Authors:
Jorge Ropero;Ariel Gómez;Alejandro Carrasco;Carlos León
Affiliations:
Department of Electronic Technology, University of Seville, Av. Reina Mercedes s/n 41012, Spain;Department of Electronic Technology, University of Seville, Av. Reina Mercedes s/n 41012, Spain;Department of Electronic Technology, University of Seville, Av. Reina Mercedes s/n 41012, Spain;Department of Electronic Technology, University of Seville, Av. Reina Mercedes s/n 41012, Spain
Venue:
Expert Systems with Applications: An International Journal
Year:
2012

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Abstract

In this paper, we propose a novel method for Information Extraction (IE) in a set of knowledge in order to answer to user consultations using natural language. The system is based on a Fuzzy Logic engine, which takes advantage of its flexibility for managing sets of accumulated knowledge. These sets may be built in hierarchic levels by a tree structure. The aim of this system is to design and implement an intelligent agent to manage any set of knowledge where information is abundant, vague or imprecise. The method was applied to the case of a major university web portal, University of Seville web portal, which contains a huge amount of information. Besides, we also propose a novel method for term weighting (TW). This method also is based on Fuzzy Logic, and replaces the classical TF-IDF method, usually used for TW, for its flexibility.