Man-machine communication in Portuguese: A friendly library service system

摘要

This paper enhances some of the main aspects of a system which converses in Portuguese to provide a library service covering the field of Artificial Intelligence. Its central feature is the use of logic as a single uniform language for knowledge and data representation, deductive information retrieval and linguistic analysis. The objective of designing this system was the development of a feasible method for consulting and creating data bases in natural Portuguese. The system is implemented in Prolog, a programming language essentially identical in syntax and semantics to a subset of predicate calculus in clausal form.