BUILDING AND UPDATING OF CO-OCCURRENCE DICTIONARY AND ANALYZING OF CO- OCCURRENCE AND MEANING

A co-occurrence dictionary is built through a process for calculating three kinds of co-occurrence information and a real number vector corresponding to each category. The co-occurrence dictionary is updated through a process for selecting the opposite phrase of the co-occurrence for the additional co-occurrence information and a process for calculating a real number vector corresponding to an additional word on the basis of the additional co-occurrence information. A co-occurrence analysis is effected through a process for calculating in real number the degree of the co-occurrence on the basis of the real number vectors corresponding to two categories to be checked in the co-occurrence relation, and a semantic analysis is effected through a process for indicating, by a numerical value, the propriety of the interpretation on the basis of the degree of each co-occurrence.