Mapping XML fragments to community web ontologies

International audienceIn this paper we are interested in the publication and querying of XPath enabled XML resources. More precisely, we want to take advantage of the structure of XML documents (generally described by a DTD) for mapping pieces of information contained in XML fragments to domain specific ontologies. The objective here is to be able to forward user queries to diverse XML repositories while hiding their DTD heterogeneity to the end-user. Our contribution is two-fold : (1) we propose a simple mapping language describing sources by a set of rules relating XPath location paths to the concepts and roles of an ontology and (2) a query rewriting algorithm for translating user queries into queries expressed in an XML query language that are sent for evaluation to XML sources

Mapping XML Fragments to Community Web Ontologies

International audienceIn this paper we are interested in the publication and querying of XPath enabled XML resources. More precisely, we want to take advantage of the structure of XML documents (generally described by a DTD) for mapping pieces of information contained in XML fragments to domain specific ontologies. The objective here is to be able to forward user queries to diverse XML repositories while hiding their DTD heterogeneity to the end-user. Our contribution is two-fold : (1) we propose a simple mapping language describing sources by a set of rules relating XPath location paths to the concepts and roles of an ontology and (2) a query rewriting algorithm for translating user queries into queries expressed in an XML query language that are sent for evaluation to XML sources