From search engines to question-answering systems the need for new tools
L. A. ZADEH · 2004
This paper deals with fuzzy logic based approach to question-answering systems. To achieve significant question answering capability it is necessary to develop methods of dealing 1. with the reality 2.with world knowledge-and especially knowledge about underlying probabilities is perception based. In this approach PNL is employed to represent infornation in the world knowledge database (WKD).