The recent growth of multimedia requires an extensive use of metadata for their management. However, a uniform access to metadata is necessary in order to take advantage of them. In this context, several techniques for achieving metadata interoperability have been developed. These intégration techniques are made by domain experts which is costly and time-consuming. The topic of my thesis is to develop an automatic integration techniques based on schema marching. We have proposed a new schema matching algorithm callad MuMIe (Multilevel Metadata Integration). MuMIe supports schemas from different description languages (XML Schema, RDS Schema, OWL) and makes use of several types of information (linguistic, semantic and structural) in a manner that increases the matching accuracy.
