In this paper, we introduce an automatic method for classifying a given question using broad semantic categories in an existing lexical database (i.e., WordNet) as the class tagset. For this, we also constructed a large scale entity supersense database that contains over 1.5 million entities to the 25 WordNet lexicographer's files (supersenses) from titles of Wikipedia entry. To show the usefulness of our work, we implement a simple redundancy-based system that takes the advantage of the large scale semantic database to perform question classification and named entity classification for open domain question answering. Experimental results show that the proposed method outperform the baseline of not using question classification.
|出版狀態||已出版 - 2009|
|事件||21st Conference on Computational Linguistics and Speech Processing, ROCLING 2009 - Taichung, Taiwan|
持續時間: 1 9月 2009 → 2 9月 2009
|???event.eventtypes.event.conference???||21st Conference on Computational Linguistics and Speech Processing, ROCLING 2009|
|期間||1/09/09 → 2/09/09|