EVALUATION EXPRESSION EXTRACTION DEVICE, PROGRAM, STORAGE MEDIUM, AND EVALUATION EXPRESSION EXTRACTION METHOD

摘要

PPROBLEM TO BE SOLVED: To provide an evaluation expression extraction device capable of extracting a pair of an evaluation object and an evaluation expression corresponding to the evaluation object from a document. PSOLUTION: A text data structure generation means 102 converts a text to a data structure retaining phrase information including at least the notation and modification information of constituting words, based on a language analysis result in a language analysis means 101, which performs a language analysis processing including at least morphological analysis processing and phrase modification analysis processing to the text. A specified phrase pair selection means 104 selects a phrase pair which refers to the evaluation of an article from phrase pairs determined to have a modification relation, and an evaluation object/evaluation expression specifying means 106 specifies the evaluation object and the evaluation expression corresponding to this evaluation object from the selected segment pair. According to this, the pair of the evaluation object and the evaluation expression corresponding to this evaluation object can be extracted from the document. PCOPYRIGHT: (C)2005,JPO&NCIPI