WORD IMPORTANCE DEGREE CALCULATION DEVICE, WORD IMPORTANCE DEGREE CALCULATION METHOD, AND COMPUTER PROGRAM

摘要

PROBLEM TO BE SOLVED: To calculate a degree of importance for a user for respective words included in a document more accurately than before.SOLUTION: A profile management server 1 is provided with means including: an interest degree data acquisition part 102 for acquiring profile data 6PD showing interest degrees that are degrees of user's interests in a document at respective times during a view of the document; a change pattern determination part 106 for detecting a pattern of change in the interest degrees; and an importance degree adjustment part 107 for calculating importance degrees that are degrees of interests for the user for respective words included in the document on the basis of the detected pattern.