The purpose of semantic access to information is to go beyond the limits of conventional keyword search, taking into account the problems of polysemy and synonymy that are inherent in natural language vocabularies. Many works are interested in using an ontology to improve access to information, at the intersection of research streams: Semantic Information Retrieval (RIS) and Semantic Web (WS) that diverge in the proposed approaches. The objective of this operation is to propose a hybridization of the methods of indexing and search of semantic information, taking advantage of ontology-based reasoning while managing large collections of documents and returning results sorted by order of relevance.