[Project OPERA INFO demo] [Western Des. TRACKING demo] [Spatio-Temporal Rel. demo] Unite de Recherche INRIA Rhone-Alpes UR INRIA Rhone-Alpes, la Position *Rocquencourt *Rennes *Sophia-Antipolis *Lorraine *Rhone-Alpes ZIRST, 655 Ave. de l'Europe, 38330 Montbonnot, France