Information processing apparatus and method, and program

• US 7,827,198 B2
• Filed: 09/11/2007
• Issued: 11/02/2010
• Est. Priority Date: 09/12/2006
• Status: Active Grant

• Current Assignee: Saturn Licensing LLC (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Narahara, Tatsuya, Watanabe, Akihiro
• Primary Examiner(s): Wong; Don
• Assistant Examiner(s): HO, BINH VAN
• Application Number:
  US11/900,380
• Publication Number:
  US 20080183697A1
• Time in Patent Office: 1,148 Days
• Field of Search: 707/100, 707/791
• US Class Current: 707/791
• CPC Class Codes: G06F 16/48 Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
• CPC Class Codes: G06F 16/95 Retrieval from the web
• CPC Class Codes: H04N 21/443 OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
• CPC Class Codes: H04N 21/4532 involving end-user characteristics, e.g. viewer profile, preferences monitoring of user activities for profile generation for accessing a video database G06F16/739; user profiles in network data switching protocols H04L67/306; processing of user preferences or user profiles in wireless networks H04W8/18
• CPC Class Codes: H04N 21/466 Learning process for intelligent management, e.g. learning user preferences for recommending movies services using the results of monitoring in broadcast systems H04H60/61
• CPC Class Codes: H04N 21/4668 for recommending content, e.g. movies
• CPC Class Codes: H04N 21/47214 for content reservation or setting reminders; for requesting event notification, e.g. of sport results or stock market stock exchange data over packet-switching network H04L12/1804; push services over packet-switching network H04L12/1859; notification of incoming messages in packet switching networks H04L51/224
• CPC Class Codes: H04N 21/84 Generation or processing of descriptive data, e.g. content descriptors systems specially adapted for using meta-information in broadcast systems H04H60/73
• CPC Class Codes: H04N 5/782 on tape

Abstract

An information processing apparatus including an identifying unit that identifies a group to which content belongs from one or more predetermined groups based on metadata describing descriptions of the content; and a clustering unit that clusters a first set of the contents that is not identified and classifying the first set into a cluster based on the metadata.

Claims

1. An information processing apparatus, including a processor, comprising:

identifying means for identifying a group to which content belongs from one or more predetermined groups based on metadata describing the content; and

clustering means for clustering a first set of the content that has been not identified and classifying the first set into a cluster based on the metadata,

wherein the identified group to which the content belongs has a relevance ratio of the content, the value of the relevance ratio of the content being equal to or greater than a predetermined threshold,

wherein the relevance ratio of the content is calculated based on values of a plurality of keywords of the content, the plurality of keywords of the content matching with identifier words in the identified group.

2. The information processing apparatus according to claim 1,

wherein the clustering means clusters a second set of the content that belongs to a selected group selected by a user or a selected cluster selected by the user into a second cluster.

3. The information processing apparatus according to claim 1, further comprising:

retrieving means for retrieving related content that relates to the content that is a base point for retrieval based on the metadata,

wherein the identifying means identifying a group to which the related content belongs.

4. The information processing apparatus according to claim 1, further comprising a presentation control means for controlling the presentation of the contents after the contents are classified into each of the groups and the clusters.

5. An information processing method, executed by a processor, comprising the steps of:

identifying a group to which a content belongs from one or more predetermined groups based on metadata describing descriptions of a content; and

clustering a set of the contents that has not been identified and classifying the set into a cluster based on the metadata,

wherein the identified group to which the content belongs has a relevance ratio of the content, the value of the relevance ratio of the content being equal to or greater than a predetermined threshold,

wherein the relevance ratio of the content is calculated based on values of a plurality of keywords of the content, the plurality of keywords of the content matching with identifier words in the identified group.

6. A computer-readable medium storing a computer program executed by a computer, the program comprising the steps of:

identifying a group to which a content belongs from one or more predetermined groups based on metadata describing descriptions of a content; and

clustering a set of the contents that has not been identified and classifying the set into a cluster based on the metadata,

wherein the identified group to which the content belongs has a relevance ratio of the content, the value of the relevance ratio of the content being equal to or greater than a predetermined threshold,

wherein the relevance ratio of the content is calculated based on values of a plurality of keywords of the content, the plurality of keywords of the content matching with identifier words in the identified group.

7. An information processing apparatus, including a processor, comprising:

an identifying unit which identifies a group to which a content belongs from one or more predetermined groups based on metadata describing descriptions of a content; and

a clustering unit which clusters a first set that is a set of the contents that has not been identified and classifies the first set into a cluster based on the metadata,

wherein the identified group to which the content belongs has a relevance ratio of the content, the value of the relevance ratio of the content being equal to or greater than a predetermined threshold,

wherein the relevance ratio of the content is calculated based on values of a plurality of keywords of the content, the plurality of keywords of the content matching with identifier words in the identified group.