BINOMIAL RELATION EXTRACTION APPARATUS, INFORMATION RETRIEVING APPARATUS USING BINOMIAL RELATION EXTRACTION PROCESSING, METHOD FOR BINOMIAL RELATION EXTRACTION PROCESSING, INFORMATION RETRIEVING PROCESSING METHOD USING BINOMIAL RELATION EXTRACTION PROCESSING, BINOMIAL RELATION EXTRACTION PROCESSING PROGRAM, AND INFORMATION RETRIEVING PROCESSING PROGRAM USING BINOMIAL RELATION EXTRACTION PROCESSING

摘要

PPROBLEM TO BE SOLVED: To provide an apparatus extracting binomial relation at high performance even for a complicated problem. PSOLUTION: In the binomial relation extraction apparatus, a solution-origin pair extraction part 12 extracts origins of cases from a teacher data storage part 11 for storing teacher data including cases to which solutions indicating objects to be extracted in binomial relation appearing in text data are applied, and generates a pair of a set of cases and the solution. A machine learning part 13 mechanically learns what solution is obtained by what set of origins in the group by a prescribed mechanical learning procedure and stores the learned result information in a learned result storage part 14. A candidate extraction part 15 extracts candidates of binomial relation from the text data 2 and an origin extraction part 16 extracts a set of origins of the binomial relation candidates. A solution estimation part 17 estimates the degree of easily becoming solutions in the set of origins of the binomial relation candidates on the basis of the learned result information, and a binomial relation extraction part 18 extracts a binomial relation candidate having a high estimation degree of a correct solution from the estimated result. PCOPYRIGHT: (C)2007,JPO&INPIT