Information processing apparatus and method, program, and storage medium

• US 7,680,768 B2
• Filed: 05/31/2007
• Issued: 03/16/2010
• Est. Priority Date: 06/01/2006
• Status: Expired due to Fees

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Koike, Hiroyuki, Tsunoda, Tomohiro
• Primary Examiner(s): Rones; Charles
• Assistant Examiner(s): CAO, PHUONG THAO
• Application Number:
  US11/756,477
• Publication Number:
  US 20080114732A1
• Time in Patent Office: 1,020 Days
• Field of Search: 707/2, 707/3, 707/7
• US Class Current: 1/1
• 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:

storing means for storing a previously calculated recommendation degree that indicates a degree to which a content is recommended for a user, the previously calculated recommendation degree being based on an existing user profile for the user and a content profile for the content;

similarity degree calculation means for calculating, based on an update to an attribute of the user profile, a degree of similarity between the updated attribute of the user profile and a corresponding attribute of the content profile;

recommendation degree variation calculation means for calculating, based on the degree of similarity, an amount of variation of the previously calculated recommendation degree due to the update to the attribute of the user profile; and

recommendation degree calculation means for calculating an updated recommendation degree by adding the amount of variation due to the update to the attribute of the user profile to the previously calculated recommendation degree.

2. The information processing apparatus according to claim 1, wherein the updated attribute of the user profile is also an attribute of the content.

3. The information processing apparatus according to claim 2, wherein said similarity degree calculation means calculates a plurality of degrees of similarity between a plurality of attributes of the user profile and a plurality of corresponding attributes of the content.

4. An information processing method, comprising the steps implemented by a computer of:

storing, in a storage device, a previously calculated recommendation degree that indicates a degree to which a content is recommended for a user, the previously calculated recommendation degree being based on an existing user profile for the user and a content profile for the content;

calculating, based on an update to an attribute of the user profile, a degree of similarity between the updated attribute of the user profile and a corresponding attribute of the content profile;

calculating, based on the degree of similarity, an amount of variation of the previously calculated recommendation degree due to the update to the attribute of the user profile; and

calculating an updated recommendation degree by adding the amount of variation due to the update to the attribute of the user profile to the previously calculated recommendation degree.

5. A computer-readable storage medium storing instructions for causing a computer to perform a method comprising:

storing a previously calculated recommendation degree that indicates a degree to which a content is recommended for a user, the previously calculated recommendation degree being based on an existing user profile for the user and a content profile for the content;

calculating, based on an update to an attribute of the user profile, a degree of similarity between the updated attribute of the user profile and a corresponding attribute of the content profile;

calculating, based on the degree of similarity, an amount of variation of the previously calculated recommendation degree due to the update to the attribute of the user profile; and

calculating an updated recommendation degree by adding the amount of variation due to the update to the attribute of the user profile to the previously calculated recommendation degree.

6. An information processing apparatus, comprising:

a storage section configured to store a previously calculated recommendation degree that indicates a degree to which a content is recommended for a user, the previously calculated recommendation degree being based on an existing user profile for the user and a content profile for the content;

a similarity degree calculation section configured to calculate, based on an update to an attribute of the user profile, a degree of similarity between the updated attribute of the user profile and a corresponding attribute of the content profile;

a recommendation degree variation calculation section configured to calculate, based on the degree of similarity, an amount of variation of the previously calculated recommendation degree due to the update to the attribute of the user profile; and

a recommendation degree calculation section configured to calculate an updated recommendation degree by adding the amount of variation due to the update to the attribute of the user profile to the previously calculated recommendation degree.