| 摘要 |
<p>PROBLEM TO BE SOLVED: To highly accurately extract a burst word.SOLUTION: A burst word extraction device is configured to: receive, by an input part 1, a plurality of documents transmitted during an extraction target period; perform, by a morphological analysis part 12, a morphological analysis each of the plurality of received documents; count, by a co-occurrence counting part 16, the number of sentences co-occurring with at least one of a plurality of daily words in which a burst word candidate is stored in a daily word list storage part 5 in a sentence as to each of a plurality of burst word candidates stored in an initial burst word list storage part 3 on the basis of the document subjected to the morphological analysis; and extract, by a burst word extraction part 18, a burst word candidate having the counted number of sentences more than a prescribed threshold value from the plurality of burst word candidates as a burst word.</p> |
