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1. (WO2001039118) LATENT NEEDS INFERENCE DEVICE, LATENT NEED INFERENCE METHOD, AND RECORDED MEDIUM ON WHICH PROGRAM IS RECORDED

Pub. No.:    WO/2001/039118    International Application No.:    PCT/JP2000/008294
Publication Date: Fri Jun 01 01:59:59 CEST 2001 International Filing Date: Sat Nov 25 00:59:59 CET 2000
IPC: G06F 17/30
Applicants: RECRUIT CO.,LTD.

HIRA, Masanobu

Inventors: HIRA, Masanobu

Title: LATENT NEEDS INFERENCE DEVICE, LATENT NEED INFERENCE METHOD, AND RECORDED MEDIUM ON WHICH PROGRAM IS RECORDED
Abstract:
Information in which a user has an interest unconsciously is inferred from the operation information that the user gives. A latent needs inference device comprises a statistics calculating section for analyzing history information on the user's operation and determining the occurrence frequency, the occurrence interval, and the standard deviation of the occurrence interval so as to infer the latent needs, a score calculating section for calculating a score to infer the latent needs from the determined occurrence frequency, occurrence interval, and standard deviation of the occurrence interval, an event adding section for storing the occurrence frequency, the occurrence interval, and the standard deviation of occurrence interval are stored in a database, and a latent needs inferring section for inferring the information that the user unconsciously have an interest in from the score. The latent needs inferring section finds a keyword having the three features: the high occurrence frequency, the large difference between maximum and minimum values of the occurrence time, and the small standard deviation of the occurrence interval.