The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 14, 2017

Filed:

Feb. 28, 2012
Applicant:

Nobuharu Kami, Tokyo, JP;

Inventor:

Nobuharu Kami, Tokyo, JP;

Assignee:

NEC CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/30 (2006.01); G06Q 30/02 (2012.01);
U.S. Cl.
CPC ...
G06F 17/3053 (2013.01); G06F 17/30699 (2013.01); G06F 17/30867 (2013.01); G06Q 30/02 (2013.01); G06Q 30/0278 (2013.01); G06Q 30/0282 (2013.01);
Abstract

A recommender system includes: an input sectionconfigured to receive a search request from a user; a user managing sectionconfigured to manage context information representing a characteristic of the user; an index-table managing sectionconfigured to output an information object related to the search request of the user; a user-authority-value managing sectionconfigured to calculate, on the basis of similarity between users calculated from comparison of the context information of the user and another user and reliability from a plurality of users for the other user, an authority value representing reliability from the user for the other user; a rating calculating sectionconfigured to calculate an evaluation value of the user for the information object using a value obtained by weighting an evaluation value of the other user for the information object according to the authority value of the other user; and a ranked-list creating sectionconfigured to output a list of information objects ranked on the basis of the evaluation value of the user.


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