METHOD FOR GENERATING TERM DICTIONARY, AND STORAGE MEDIUM RECORDING TERM DICTIONARY GENERATION PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a term dictionary generating method capable of generating a term dictionary including information necessary for the processing of many documents over a wide object area by generating an ontology capable of recog nizing various relation of words and a recording medium recording a term dictionary generation program. SOLUTION: Respective words in a document are stored together with their positional information and a primary statistic value related to the inclusion of the same word is calculated (step S13). Relative words are selected based on the primary statistic value (step S15) and a graph linked with nodes of respective relative words is generated from the nodes of words expressing the object areas of the relative words (step S17). Then, a cooccurrence statistic value for the combination of two nodes of the graph is calculated (step S19) and similarity between two combined words is calculated (step S21). Then, an ontology is generated by converting the graph based on the cooccurrence statistic value and the similarity and annexing a relative label to the converted graph (step S23) to generate a term dictionary.