Information Processing Apparatus, Feature Extraction Method, Recording Media, and Program
AssigneeSony Corporation
InventorMitsuhiro Miyazaki
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Abstract
The present invention relates to an information processing apparatus, a feature extraction method, a recording media, and a program that are adapted to easily and correctly extract features of classes in which a plurality of elements are classified. Of all combinations of metadata for each piece of content belonging to each class subject to feature extraction, a combination extraction block 83 extracts a metadata combination that does not exist in any metadata combinations for each piece of content belonging to another class, as the feature of the class in which a content classification block 81 classifies a plurality of pieces of content as instructed by the user. The present invention is applicable to recommendation systems.
Claims18
An information processing apparatus comprising:
- feature extraction means for extracting, as a feature of a class in which a plurality of elements related with data indicative of a feature of each of said plurality of elements are classified, of all combinations of said data obtained by taking out one or more pieces of said data related with said plurality of elements for each thereof belonging to said class subject to feature extraction, a combination of said data that does not exist in any combinations of said data obtained by taking out one or more pieces of said data related with said plurality of elements for each thereof belonging to another class.
A feature extraction method comprising the step of:
- extracting, as a feature of a class in which a plurality of elements associated with data representative of a feature of each of said plurality of elements are classified, of all combinations of said data obtained by taking one or more pieces of said data associated with each of said plurality of elements for each of said plurality of elements belonging to said class subject to feature extraction, a combination of said data that does not exist in the combinations of said data obtained by taking one or more pieces of said data associated with each of said plurality of elements for each of said plurality of elements belonging to said class subject to feature extraction.
A program for making a computer execute the step of:
- extracting, as a feature of a class in which a plurality of elements associated with data representative of a feature of each of said plurality of elements are classified, of all combinations of said data obtained by taking one or more pieces of said data associated with each of said plurality of elements for each of said plurality of elements belonging to said class subject to feature extraction, a combination of said data that does not exist in the combinations of said data obtained by taking one or more pieces of said data associated with each of said plurality of elements for each of said plurality of elements belonging to said class subject to feature extraction.
Dependencies are inferred from the claim text.