| 摘要 |
<p>PROBLEM TO BE SOLVED: To extract a daily word with high accuracy.SOLUTION: From a document including at least one sentence having undergone a morphological analysis, a daily word extracting unit 32 extracts a character string in which a part matching the regular expression does not indicate the time, as a daily word which is a character string showing an event, by using a regular expression representing a character string pattern simultaneously including a character string which does not indicate time, a date expression regarding a character string, and an intrinsic expression regarding a character string, or a number.</p> |
