On the basis of the compound word dictionary to which the compound word which

摘要

PPROBLEM TO BE SOLVED: To solve a problem in mechanically determining a document and showing only a result, wherein a determination accuracy and the reliability of the determination result are obscure so as to have a possibility that a categorized opinion of a customer is sent around among corresponding divisions according to the determination dependent on an individual and is left aside for a long time. PSOLUTION: This information processor selects a copula of high appearance frequency from a document 10 (S20), creates a determination function 8a for determining a category of a document from the selected copula (S30), determines the category of the document 10 based on the created determined function 8a (S40), creates a classification rule of another result and classifies the determination result (S50-S60), calculates a validity of the determination result for every classification result (S70), and stores the determination function, the classification rule, and the validity in a memory as document determination information. This processor determines the category of a document 6 in a same type of the document 10 based on the document determination information and outputs the determination result 9 including the validity (S110-S140). PCOPYRIGHT: (C)2003,JPO