OntoRefiner, a user query refinement interface usable for Semantic Web Portals

We present a user interface, the OntoRefiner1 system, for helping the user to navigate numerous retrieved documents after a search querying a semantic portal which integrates a very important number of documents. Retrieved answers are filtered and the user could be provided only with the answers which are, according to him, the most relevant. The refinement process is based on two technologies, dynamic clustering close to Galois lattice structure combined to the use of a domain ontology. The Galois lattice structure provides a sound basis for the query refinement process. However, its construction as a whole is a very costly process. So, we propose an approach based on the use of a domain ontology, avoiding the construction of the whole Galois lattice. In the paper, we present the algorithm and experimental results.

• Type: Conference
• Year: 2004
• Where: ECAI
• Authors: Brigitte Safar, Hassen Kefi, Chantal Reynaud
• Keywords: Artificial Intelligence, ECAI 2004, Galois Lattice, Galois Lattice Structure, Refinement Process