ITEM INTRODUCTION SYSTEM, ITEM INTRODUCTION METHOD, PROGRAM FOR ITEM INTRODUCTION, AND RECORDING MEDIUM FOR ITEM INTRODUCTION

摘要

PROBLEM TO BE SOLVED: To introduce a second interesting item not experienced in the past history by performing analysis with social filtering to introduce an item to a user.

SOLUTION: An instantaneous change (a differential value) is captured from two or more access logs to recognize the directivity of interest of a user U0, and an item to which interest is directed is introduced. Therefore, for example, if a person taking SF movie information and action movie information as accessed item, when the information having a tendency of directing toward sports information (being interested in sports information) is stored, when the user U0 takes SF movie information and action movie information as accessed items, an item as sports information quite different from the SF movie information can be introduced to the user U0.

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