| 摘要 |
A genre generation device (200) includes a calculating part (235) that calculates a co-occurrence level of a first keyword representing a first genre to be generated and a second keyword representing a second genre that is an attended genre in a search query in a genre hierarchy, and a generating part (265) that generates the first genre in a different layer from a layer where the second genre belongs when a difference between the co-occurrence level of the first keyword and the second keyword, and, a threshold for a level is smaller than a threshold for a disparity. |
