| 摘要 |
An information processor includes: extraction means for extracting metadata from contents; first storage means for storing a candidate metadata list in which candidate metadata becoming candidates for typical metadata having higher extraction frequencies out of the extracted metadata and a first frequency at which the candidate metadata were extracted are interrelatedly stored; first updating means for adding the extracted metadata as the candidate metadata to the candidate metadata list, thus updating the candidate metadata list; second storage means for storing a typical metadata list in which the typical metadata and a second frequency at which the typical metadata were extracted are interrelatedly stored; and second updating means which, when the first frequency stored in the candidate metadata list is in excess of a given frequency, adds the candidate metadata associated with the first frequency as the typical metadata to the typical metadata list, thus updating the typical metadata list. |
