Evaluation of a thesaurus-based query expansion technique

Authors:
Luiz Augusto Sangoi Pizzato;Vera Lúcia Strube de Lima
Affiliations:
Pontifícia Universidade Católica do Rio Grande do Sul, FACIN - PPGCC, Porto Alegre, RS, Brasil;Pontifícia Universidade Católica do Rio Grande do Sul, FACIN - PPGCC, Porto Alegre, RS, Brasil
Venue:
PROPOR'03 Proceedings of the 6th international conference on Computational processing of the Portuguese language
Year:
2003

Citing 2
Cited 2

Explorations in Automatic Thesaurus Discovery

Explorations in Automatic Thesaurus Discovery
Complementing WordNet with Roget's and corpus-based thesauri for information retrieval

EACL '99 Proceedings of the ninth conference on European chapter of the Association for Computational Linguistics

NLP for Shallow Question Answering of Legal Documents Using Graphs

CICLing '09 Proceedings of the 10th International Conference on Computational Linguistics and Intelligent Text Processing
An empirical analysis of ontology-based query expansion for learning resource searches using MERLOT and the Gene ontology

Knowledge-Based Systems

Quantified Score

Hi-index	0.00

Visualization

Abstract

This paper concerns the use and evaluation of a thesaurusbased query expansion method in information retrieval. The query expansion process assigns weights to different types of relations obtained fom vocabulary structures, providing an efficient way to measure distance measure between different terms. This method, tested for Portuguese, improved the overall information retrieval performance on small corpora and over the Internet.