Creating Ontologies from Web documents

In this paper we present a methodology to build automatically an ontology, extracting information from the World Wide Web from an initial keyword. This ontology represents a taxonomy of classes and gives to the user a general view of the kind of concepts and the most significant sites that he can find on the Web for the specified keyword's domain. The system uses intensively a publicly available search engine, extracts concepts (based on its relation to the initial one and statistical data about appearance) and represents the result in a standard way.