Le langage de requêtes XFIRM pour la recherche d'information dans les documents XML

One of the key advantages of XML is its capacity to combine structured and unstructured (text) data. Many languages, based on database-oriented approaches or on information retrieval-oriented approaches, have been proposed in the literature for querying XML corpus. However, they respectively accentuate document structure querying or text querying, but they do not manage to combine it in an attractive way. Moreover, in most cases, users have to perfectly know the document structure, and the syntax of the query language is relatively complex. In this paper, we propose the XFIRM query language, allowing the user to express simple queries based on keywords or more complex queries using document structure MOTS-CLÉS : recherche d’information, XML, langage de requête, modèle de représentation