Patent ID: 8271482

Claim:
An information processing device, comprising: an access history acquiring unit which, for each of accessed contents, acquires and stores access history information showing access history for the contents accessed by a user terminal by utilizing a content access application installed to the user terminal; and a relevancy setting unit which relates the contents accessed by the user terminal based on the access history information acquired by the access history acquiring unit, and stores relevance information showing a relevance state between the contents, wherein: as the access history information, the access history acquiring unit acquires content identification information which identifies the accessed content, access date and time information which shows date and time at which the content is accessed, a user ID for identifying the user terminal accessing the content, and application identification information for identifying a browser screen as the content access application making access to the content, which is different for each browser screen operated on the user terminal; and the relevancy setting unit generates and stores the relevance information by relating the plural content identification information having the same user ID and the same application identification information to each other among the content identification information contained in each piece of the access history information corresponding to each of the different contents based on the access date and time information and the user ID and the application identification information contained in each piece of the access history information corresponding to each of the different contents.