FUZZY SETS AND SEMANTIC NETS FOR ON LINE ASSISTANCE Mohamed-Nazih OMRI*, Charles Tijus**, SChastien Poitrenaud** and Bernadette Bouchon-Meunier* *LAFORIA-IBP, UniversitC Paris 6, boite 169 4, Place Jussieu, 75252 Paris Cedex 05 **Laboratoire de PsychologieCognitive, URA CNRS 1297, UniversitC Paris 8 2, rue de la libert$93526 Saint-Denis-France 374 1043-0989/95$4.00@1995IEEE Proceedings of the 11th Conference on Artificial Intelligence for Applications (CAIA '95) 1043-0989/95 $10.00 © 1995 IEEE