My research interest include Semantic Web and Multimedia Technologies, Knowledge Representation, Ontology Modeling and Alignment. I have proposed COMM, a Core Ontology for Multimedia derived from MPEG-7 and DOLCE. I'm also working closely with the IPTC standardization body for bringing the NewsML architecture and other IPTC standards to the Semantic Web, building a NewsML ontology.
I have already been involved in W3C activities, participating in the Multimedia and Semantic Web task force of the Semantic Web Best Practices and Deployment WG. I have co-chaired the Multimedia Semantics Incubator Group. I'm now participating in the Media Annotations Working Group and co-chairing the Media Fragments Working Group.