AUTOMATIC RELATED WORD EXTRACTING METHOD, AUTOMATIC RELATED WORD EXTRACTING DEVICE, PLURAL-IMPORTANT WORD EXTRACTING PROGRAM AND IMPORTANT WORD VERTICAL HIERARCHICAL RELATIONSHIP EXTRACTING PROGRAM

PROBLEM TO BE SOLVED: To provide an automatic related word extracting method and an automatic related word extracting device capable of automatically extracting a technical term, a new word, and a buzz term unrecorded in a general existing thesaurus dictionary, and appearing in a specific field designated by a user, and capable of highly accurately and precisely extracting an important word deeply related to a word designated by the user. SOLUTION: A document group of a field designated by the user is stored in a database part 1. The important word being a high significant word is selected from the document group in the database part 1 by an important word analyzing part 2. A count list is made as statistical information to the important word or a pair of important words by a count part 3. A degree of association of the mutual important words is determined by a related word extracting part 4 on the basis of this count list. COPYRIGHT: (C)2003,JPO