Section: Application Domains

Semantic metadata

Semantic metadata (i.e., metadata expressed in terms of a formal ontology) are at the core of the applications we have been working on for several years, with our main partners INA (French Institute for Audiovisual, http://www.ina.fr/ ) and ABES (French Agency for Academic Libraries, http://www.abes.fr/ ). Our focus evolved from building semantic annotations and exploiting them to retrieve data, to interlinking problems between individual references in annotations of documents. More specifically, the linkage problem at the core of our current project Qualinca (in Section  9.1 ) consists in identifying an authority (i.e., an element of a referential described by metadata) to be linked with a reference in a bibliographic notice (i.e., metadata describing a document). This problem is an instance of the intensively studied entity resolution problem. In the Semantic Web, it can be recast as the computation of OWL:sameAs links between two metadata bases, clearly a fundamental problem for the Linked Open Data. We use a knowledge-based approach to solve this problem.