Patent ID: 8826315
Filing Date: 2014-09-02
Classification: G06F,H04N

Abstract:
1. An estimation apparatus that estimates an association between content and a user who performed an operation on the content, the apparatus comprising: a processor; a receiving unit configured to receive an operation performed on content; a determining unit configured to determine, using said processor, whether or not an operating user who has performed the operation on the content can be identified based on the operation received by the receiving unit; a first association information generation unit configured to, when it is determined by the determining unit that the operating user can be identified, generate first association information in which the content subjected to the operation performed by the operating user and the operating user are associated with each other; a learning unit configured to generate learnt information for associating a given user with content likely to be operated by the given user by using the first association information; an estimation unit configured to estimate a user who has performed an operation on unidentified content by using the unidentified content and the learnt information generated by the learning unit, the unidentified content being content subjected to the operation when it is determined by the determining unit that the operating user cannot be identified; and a second association information generation unit configured to generate second association information in which the unidentified content and the user estimated by the estimation unit are associated with each other, wherein the learning unit is configured to update the learnt information by preferentially using the first association information over the second association information, and wherein the learning unit is configured to weight the first association information and the second association information such that a weight of the second association information is smaller than a weight of the first association information, and update the learnt information by using the first association information and the second association information that have been weighted.