DOCUMENT INFORMATION ANALYZING APPARATUS

摘要

PROBLEM TO BE SOLVED: To accurately obtain keywords for searching documents including the information which a user requires. SOLUTION: The document information analyzing apparatus includes a first feature quantity calculation means for collecting documents which include a main keyword and calculating a first feature quantity which represents importance of each word in the documents, a second feature quantity calculation means for collecting a plurality of documents and calculating a second feature quantity which represents importance of each word in the documents and a relevant keyword output means for calculating a value by reducing the first feature quantity based on the second feature quantity as correlation with the main keyword and obtaining relevant keywords based on the correlation. COPYRIGHT: (C)2004,JPO&NCIPI