Abstract:

Our system OSVIRA (Ontology-based System for Semantic Visio-conference Information Retrieval and Annotation) is devoted to the development of help to the annotation and to the semantic research of multimedia videoconferencing resources. It is founded on the use of dense ontology associated with a thesaurus. OSVIRA allows to describe semantically the content of a pedagogic multimedia resources on the basis of an intuitive model of annotation based on the triplet {Object, Relation, Object}. It formally represents this content with the aid of conceptual graphs.