A natural language based legal expert system for consultation and tutoring---the LEX project
F. Haft, Richard P. O. Jones, Th. Wetter · 1987
The LEX (Legal Expert System) project is one of the European based projects investigating legal expert systems from both a professional and a teaching perspective. The project is a cooperative project between the University of Tübingen and IBM Germany and developed out of research into a User Specialty Language system (USL) for natural language queries to a relational data base. The LEX system has as its main components a Natural Language Analyzer for analysis and logic representation of written texts. A Knowledge Base holding; sources from the legal codes, explanations from legal commentaries, some common sense knowledge, and a lexicon of approximately 20000 words. Finally a Deductive Component based upon tableau calculus, conducts inference within the system.