Abstract de la publi numéro 12288

A recent trend in multimedia information retrieval systems is the integration of users, by their preferences and interests, in the retrieval process. Generally, such systems consider the user only after the query’s execution, while the results’ presentation. We propose to consider the user as a source of metadata, by exploiting his behaviour and to enrich the document’s metadata with a usage metadata. We introduce the concept of temperature, associated to each metadata descriptor, which denotes the popularity of the multimedia document’s metadata. An algorithm for the computation, the increase and the decrease of this temperature is described in details. We present also how this algorithm can be used for the enrichment of each metadata descriptor according to the user’s interactions with the multimedia content and the metadata.