| 摘要 |
PROBLEM TO BE SOLVED: To provide a classification device, method, and program capable of extracting features corresponding to accompanying information and features occurring in common to sentence information of the same category other than the features corresponding to the accompanying information on the basis of the sentence information and the accompanying information corresponding to the sentence information.SOLUTION: The classification device comprises: an association extraction unit for extracting words associated with accompanying information from sentence information, to the sentence information and the accompanying information corresponding to the sentence information; and a common extraction unit for extracting words which are words other than the words associated with the accompanying information extracted by the association extraction unit, and are common in the sentence information of the same category, and occur at high frequency. |
