Title:
利用者情報処理装置、利用者情報処理方法、及び利用者情報処理プログラム
Document Type and Number:
Japanese Patent JP5447307
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To calculate similarity among users accurately and with a small amount of calculation.SOLUTION: A usage frequency correlation information storage unit stores a between-user inner product value that is an inner product of a usage frequency value that is a value indicating a usage frequency of each content of any two persons among users on the basis of usage information received by a predefined point in time. A correction value calculation unit calculates a corrected inner product indicating a change amount of the between-user inner product value of the two users since a predefined point in time on the basis of usage information received after the predefined time. A similarity calculation unit calculates a similarity between the two users by using a new inner product value obtained by adding the correction value and the between-user inner product value.
Inventors:
Konosuke Matsushita
Ichiro Shishido
Ichiro Shishido
Application Number:
JP2010199724A
Publication Date:
March 19, 2014
Filing Date:
September 07, 2010
Export Citation:
Assignee:
Jvc kenwood corporation
International Classes:
G06F17/30
Domestic Patent References:
| JP2007141135A | ||||
| JP2007323398A | ||||
| JP2006302097A | ||||
| JP2009265754A | ||||
| JP11053381A |