Content recommendation system, content recommendation method, and information storage medium

• US 10,459,948 B2
• Filed: 09/12/2014
• Issued: 10/29/2019
• Est. Priority Date: 09/05/2008
• Status: Expired due to Fees

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Sakamoto, Takayuki, Kato, Hiroki, Takagi, Tsuyoshi
• Primary Examiner(s): Hutton, Nan
• Application Number:
  US14/485,601
• Publication Number:
  US 20150006539A1
• Time in Patent Office: 1,873 Days
• CPC Class Codes: G06F 16/285 Clustering or classification
• CPC Class Codes: G06F 16/637 Administration of user profiles, e.g. generation, initialization, adaptation or distribution
• CPC Class Codes: G06F 16/68 Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
• CPC Class Codes: G06F 16/683 using metadata automatically derived from the content
• CPC Class Codes: G06F 16/907 Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
• CPC Class Codes: G06Q 30/02 Marketing; Price estimation or determination; Fundraising

Abstract

A content recommendation system includes: an attribute value storage means which stores one or more attribute values of attributes for each content; a preference distribution storage means which stores a user preference degree for each attribute value; an attribute value acquisition means which acquires an attribute value of at least one attribute for each content; a preference distribution update means which updates the storage contents in the preference distribution storage means in accordance with the acquired attribute value; a condition determination means which selects an attribute value of one or more attributes in accordance with probability based on the user preference degree stored in the preference distribution storage means and determines the condition of the attribute value of the one or more attributes in accordance with the selected attribute value; and a content selection means which selects some or all of the contents in accordance with the determined condition.

Claims

1. A system, comprising:

a memory configured to store;

metadata of content, wherein the metadata includes first metadata and second metadata;

a plurality of templates, wherein each template of the plurality of templates is associated with the first metadata of the content; and

a degree of preference of a user for each template of the plurality of templates and for each attribute value of a plurality of attribute values for attributes of the content, wherein the attributes correspond to the first metadata; and

circuitry configured to;

select a template from the plurality of templates based on the degree of preference of the user for each template of the plurality of templates;

select at least one attribute value of an attribute which is associated with the selected template, based on the degree of preference of the user for each attribute value of the plurality of attribute values;

select a list of content from the content based on the selected at least one attribute value;

filter the selected list of content based on the second metadata that correspond to a plurality of feature quantities of features of the content; and

transmit the filtered list of content to a user apparatus via a communication network.

2. The system of claim 1, wherein the circuitry is further configured to obtain the degree of preference for each attribute value of the plurality of attribute values for the attributes of the content.

3. The system of claim 1, wherein the circuitry is further configured to update the degree of preference for each attribute value of the plurality of attribute values stored in the memory.

4. The system of claim 1, wherein the user apparatus:

displays the filtered list of content on a display screen of the user apparatus, wherein the user apparatus is associated with the user; and

selects at least one content from the displayed list of content based on a selection request received from the user.

5. The system of claim 1, wherein the circuitry is further configured to:

receive at least one random number from the user apparatus; and

select the template from the plurality of templates based on the received at least one random number.

6. A method, comprising:

metadata of content, wherein the metadata includes first metadata and second metadata;

a plurality of templates, wherein each template of the plurality of templates is associated with the first metadata of the content;

a degree of preference of a user for each template of the plurality of templates and for each attribute value of a plurality of attribute values for attributes of the content, wherein the attributes correspond to the first metadata;

selecting a template from the plurality of templates based on the degree of preference of the user for each template of the plurality of templates;

selecting at least one attribute value of an attribute which is associated with the selected template, based on the degree of preference of the user for each attribute value of the plurality of attribute values;

selecting a list of content from the content based on the selected at least one attribute value;

filtering the selected list of content based on the second metadata that correspond to a plurality of feature quantities of features of the content; and

transmitting the filtered list of content to a user apparatus via a communication network.

7. The method of claim 6, further comprising:

obtaining the degree of preference for each attribute value of the plurality of attribute values for the attributes of the content.

8. The method of claim 6, further comprising:

updating the degree of preference for each attribute value of the plurality of attribute values stored in a memory.

9. The method of claim 6, wherein the user apparatus:

displays the filtered list of content on a display screen of the user apparatus, wherein the user apparatus is associated with the user, and

selects at least one content from the displayed list of content based on a selection request received from the user.

10. The method of claim 6, further comprising:

receiving at least one random number from the user apparatus; and

selecting the template from the plurality of templates based on the received at least one random number.

11. A non-transitory computer-readable medium having stored thereon, computer-executable instructions, which when executed by a computer, cause the computer to execute operations, the operations comprising:

metadata of content, wherein the metadata includes first metadata and second metadata;

a plurality of templates, wherein each template of the plurality of templates is associated with the first metadata of the content;

a degree of preference of a user for each template of the plurality of templates and for each attribute value of a plurality of attribute values for attributes of the content, wherein the attributes correspond to the first metadata;

selecting a template from the plurality of templates based on the degree of preference of the user for each template of the plurality of templates;

selecting at least one attribute value of an attribute which is associated with the selected template, based on the degree of preference of the user for each attribute value of the plurality of attribute values;

selecting a list of content from the content based on the selected at least one attribute value;

filtering the selected list of content based on the second metadata that correspond to a plurality of feature quantities of features of the content; and

transmitting the filtered list of content to a user apparatus via a communication network.

12. The non-transitory computer-readable medium of claim 11, further comprising obtaining the degree of preference for each attribute value of the plurality of attribute values for the attributes of the content.

13. The non-transitory computer-readable medium of claim 11, further comprising

updating the degree of preference for each attribute value of the plurality of attribute values stored in a memory.

14. The non-transitory computer-readable medium of claim 11, wherein the user apparatus:

displays the filtered list of content on a display screen of the user apparatus, wherein the user apparatus is associated with the user, and

selects at least one content from the displayed list of content based on a selection request received by the user.

15. The non-transitory computer-readable medium of claim 11, further comprising:

receiving at least one random number from the user apparatus; and

selecting the template from the plurality of templates based on the received at least one random number.