Schema Evolution publication categorizer

Ontology merging is the process of creating a new ontology from two or more existing ontologies with overlapping parts. Currently, there are many domain areas in Computer Science interested in this topic. Federated Databases and Semantic Web are some of them. In this paper we introduce a three level approach that provides a semi-automatic method to ontology merging. It performs some tasks automatically and guides the user in performing other tasks for which his intervention is required.