Yi Wu

7383260, Jun 3, 2008

Aug 3, 2004

10/910118

John R. Smith - New York NY, US
Belle L. Tseng - Cupertino CA, US
Yi Wu - Goleta CA, US

International Business Machines Corporation - Armonk NY

G07F 17/30
G06F 15/16

707 5, 707102

A method and apparatus for ontology-based classification of media content are provided. With the method and apparatus, initial confidence values of classifiers in a hierarchical classification structure are modified based on relationships between classifiers. A confidence value for a classifier is boosted by a boosting factor based on a correspondence between the confidence value and confidence values of ancestor classifiers in the hierarchical classification structure. A confidence value for a classifier is modified by a confusion factor based on a correspondence between the confidence value of the classifier and the confidence values of mutually exclusive classifiers in the hierarchical classification structure. In this way, a more accurate representation of the actual confidence that media content falls within the classification associated with the classifier is obtained. From this improved classification mechanism, indices for media content may be generated for use in accessing the media content at a later time.

7873642, Jan 18, 2011

Jan 9, 2008

11/971252

John R. Smith - New York NY, US
Belle L. Tseng - Cupertino CA, US
Yi Wu - Goleta CA, US

International Business Machines Corporation - Armonk NY

G06F 17/20
G06F 15/16

707748, 707688

A method and apparatus for ontology-based classification of media content are provided. With the method and apparatus, initial confidence values of classifiers in a hierarchical classification structure are modified based on relationships between classifiers. A confidence value for a classifier is boosted by a boosting factor based on a correspondence between the confidence value and confidence values of ancestor classifiers in the hierarchical classification structure. A confidence value for a classifier is modified by a confusion factor based on a correspondence between the confidence value of the classifier and the confidence values of mutually exclusive classifiers in the hierarchical classification structure. In this way, a more accurate representation of the actual confidence that media content falls within the classification associated with the classifier is obtained. From this improved classification mechanism, indices for media content may be generated for use in accessing the media content at a later time.

7953693, May 31, 2011

Apr 17, 2008

12/105192

John R. Smith - New York NY, US
Belle L. Tseng - Cupertino CA, US
Yi Wu - Goleta CA, US

International Business Machines Corporation - Armonk NY

G06F 9/44
G06N 7/02
G06N 7/06

706 52

A method and apparatus for ontology-based classification of media content are provided. With the method and apparatus, initial confidence values of classifiers in a hierarchical classification structure are modified based on relationships between classifiers. A confidence value for a classifier is boosted by a boosting factor based on a correspondence between the confidence value and confidence values of ancestor classifiers in the hierarchical classification structure. A confidence value for a classifier is modified by a confusion factor based on a correspondence between the confidence value of the classifier and the confidence values of mutually exclusive classifiers in the hierarchical classification structure. In this way, a more accurate representation of the actual confidence that media content falls within the classification associated with the classifier is obtained. From this improved classification mechanism, indices for media content may be generated for use in accessing the media content at a later time.