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.
Patent No.:
Date of Patent:
Jan. 21, 2014
Filed:
Feb. 18, 2009
Yasuhide Mori, Kawasaki, JP;
Yoshio Miki, Kodaira, JP;
Masahiro Kato, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Provided is an information recommendation system capable of recommending an unexpected item which a user is interested in but cannot assume easily. A server gives one or more times of initial recommendations of recommending information by a means of a user profile and a behavior history, and narrows down second recommended items to recommend next by using not only information relating to items having responses but also information relating to items having no response together. In narrowing down, the items are arranged by means of an item arrangement program by using the results of the initial recommendations, and it is identified depending on similarity by means of a boundary calculation program where the boundary between user's interest and no interest is positioned in all the items. Then, it is identified where items not recommended yet are positioned in user's interest/no interest the areas, and items in the vicinity of the boundary between the interest and no interest are determined as the second recommended items which are not uninterested and maximize unexpectedness.