Syntactic rule acquisition based on inductive logic programming - (No.2): examination of the optimal values of prolog parameters

摘要

Really useful and practical natural language processing systems must have abilities of acquiring unknown words and syntactic-rules to detect, analyze, and acquire new and unknown linguistic expressions, when the systems encounter them. In this paper, we report some results of syntactic rule acquisition experiments with use of an inductive logic programming system Progol, focussing on effects of Prolog parameters to system performances in terms of processing time. Positive examples were gathered manually from an dictionary 'Concise English Dictionary (Ver.4, Sanseido)," Negative examples were also manually produced with use of the positive examples.