Information Processing Apparatus and Method, Program, and Storage Medium

• US 20080114732A1
• Filed: 05/31/2007
• Published: 05/15/2008
• Est. Priority Date: 06/01/2006
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: KOIKE, Hiroyuki, TSUNODA, Tomohiro
• Granted Patent: US 7,680,768 B2
• Time in Patent Office: Days
• US Class Current: 707/3
• CPC Class Codes: G06F 16/335 Filtering based on additional data, e.g. user or group profiles filtering in web context G06F16/9535, G06F16/9536
• CPC Class Codes: G06F 16/9535 Search customisation based on user profiles and personalisation
• CPC Class Codes: Y10S 707/99932 Access augmentation or optimizing

Abstract

Disclosed herein is an information processing apparatus including: storage means for storing a recommendation degree that indicates a degree of recommendation of a content for a user; similarity degree calculation means for calculating a degree of similarity between a part of a user profile as updated and a content profile; recommendation degree variation calculation means for calculating, based on the degree of similarity calculated by the similarity degree calculation means, an amount of variation of the recommendation degree of the content for the user; and recommendation degree calculation means for calculating a new recommendation degree by adding the amount of the variation of the recommendation degree calculated by the recommendation degree variation calculation means to the recommendation degree stored in the storage means.

Claims

1. An information processing apparatus, comprising:

storage means for storing a recommendation degree that indicates a degree of recommendation of a content for a user;

similarity degree calculation means for calculating a degree of similarity between a part, of a user profile as updated and a content profile;

recommendation degree variation calculation means for calculating, based on the degree of similarity calculated by said similarity degree calculation means, an amount of variation of the recommendation degree of the content for the user; and

recommendation degree calculation means for calculating a new recommendation degree by adding the amount of the variation of the recommendation degree calculated by said recommendation degree variation calculation means to the recommendation degree stored in said storage means.

2. The information processing apparatus according to claim 1, wherein the part of the user profile as updated with respect to which said similarity degree calculation means calculates the degree of similarity is a part of the user profile corresponding to a difference between the user profile before update and the user profile as updated.

3. The information processing apparatus according to claim 1, wherein the part of the user profile as updated with respect to which said similarity degree calculation means calculates the degree of similarity is a part of the user profile corresponding to a specific attribute.

4. The information processing apparatus according to claim 3, wherein said similarity degree calculation means calculates the degree of similarity with respect to a plurality of parts of the user profile as updated sequentially, each of the plurality of parts corresponding to a separate group of attributes.

5. The information processing apparatus according to claim 1, wherein the part of the user profile as updated with respect to which said similarity degree calculation means calculates the degree of similarity is a part, of the user profile corresponding to a part of a difference between the user profile before update and the user profile as updated, the part of the difference corresponding to a specific attribute.

6. An information processing method, comprising the steps of:

a) storing a recommendation degree that indicates a degree of recommendation of a content for a user;

b) calculating a degree of similarity between a part of a user profile as updated and a content profile;

c) based on the degree of similarity calculated by said step b), calculating an amount of variation of the recommendation degree of the content for the user; and

d) calculating a new recommendation degree by adding the amount of the variation of the recommendation degree calculated by said step c) to the recommendation degree stored by said step a).

7. A program for causing a computer to execute the steps of:

a) storing a recommendation degree that indicates a degree of recommendation of a content for a user;

b) calculating a degree of similarity between a part of a user profile as updated and a content profile;

c) based on the degree of similarity calculated by said step b), calculating an amount, of variation of the recommendation degree of the content for the user; and

d) calculating a new recommendation degree by adding the amount of the variation of the recommendation degree calculated by said step c) to the recommendation degree stored by said step a).

8. A storage medium having the program of claim 7 stored therein.

9. An information processing apparatus, comprising:

a storage section configured to store a recommendation degree that indicates a degree of recommendation of a content for a user;

a similarity degree calculation section configured to calculate a degree of similarity between a part of a user profile as updated and a content profile;

a recommendation degree variation calculation section configured to calculate, based on the degree of similarity calculated by said similarity degree calculation section, an amount of variation of the recommendation degree of the content for the user; and

a recommendation degree calculation section configured to calculate a new recommendation degree by adding the amount of the variation of the recommendation degree calculated by said recommendation degree variation calculation section to the recommendation degree stored in said storage section.