Improving the Effectiveness of Multimedia Summarization of Judicial Debates through Ontological Query Expansion

The growing amount of multimedia data acquired during courtroom debates makes information and knowledge management in judicial domain a real challenge. In this paper we tackle the problem of summarizing this large amount of multimedia data in order to support fast navigation of the streams, efficient access to the information and effective representation of relevant contents needed during the judicial process. In particular, we propose an ontology enhanced multimedia summarization environment able to derive a synthetic representation of audio/video contents by a limited loss of meaningful information while overcoming the information overload problem.