| 摘要 |
PROBLEM TO BE SOLVED: To present a content for which user interest is high. SOLUTION: A selection input reception means 1a receives an input of selection of the content by the user. A retrieval means 1b retrieves the content to be presented to the user, including another kind of content in a retrieval target, based on the metadata of the content selected from among a plurality of kinds of contents that are providable to the user by the user, received by the selection input reception means 1a, and stored in a metadata storage means 1d. A display information output means 1c outputs display information for displaying the content retrieved by the retrieval means 1b. The metadata storage means 1d stores the metadata of each content regarding the plurality of kinds of contents. COPYRIGHT: (C)2011,JPO&INPIT
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