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In this research work we propose two approaches for query expansion aiming to improve the performance of a Boolean Information Retrieval System (BIRS). Queries are made up of words and integrate the concepts and semantic relationships retrieved from four ontologies of restricted domain. The final purpose is to retrieve relevant information from the domain corpus for each concept and relationship of the ontology of restricted domain. By analyzing the results obtained in the experiments, it can be observed that the precision of the second approach proposed improves the results of the first approximation both, with and without the expansion process.

Aproximaciones para la expansión semántica de consultas de un Sistema de Recuperación de Información Booleano