Extraction of Daily Changing Words for Question Answering

Kugatsu Sadamitsu, Ryuichiro Higashinaka, Yoshihiro Matsuo


Abstract
This paper proposes a method for extracting Daily Changing Words (DCWs), words that indicate which questions are real-time dependent. Our approach is based on two types of template matching using time and named entity slots from large size corpora and adding simple filtering methods from news corpora. Extracted DCWs are utilized for detecting and sorting real-time dependent questions. Experiments confirm that our DCW method achieves higher accuracy in detecting real-time dependent questions than existing word classes and a simple supervised machine learning approach.
Anthology ID:
L14-1247
Volume:
Proceedings of the Ninth International Conference on Language Resources and Evaluation (LREC'14)
Month:
May
Year:
2014
Address:
Reykjavik, Iceland
Editors:
Nicoletta Calzolari, Khalid Choukri, Thierry Declerck, Hrafn Loftsson, Bente Maegaard, Joseph Mariani, Asuncion Moreno, Jan Odijk, Stelios Piperidis
Venue:
LREC
SIG:
Publisher:
European Language Resources Association (ELRA)
Note:
Pages:
2608–2612
Language:
URL:
http://www.lrec-conf.org/proceedings/lrec2014/pdf/271_Paper.pdf
DOI:
Bibkey:
Cite (ACL):
Kugatsu Sadamitsu, Ryuichiro Higashinaka, and Yoshihiro Matsuo. 2014. Extraction of Daily Changing Words for Question Answering. In Proceedings of the Ninth International Conference on Language Resources and Evaluation (LREC'14), pages 2608–2612, Reykjavik, Iceland. European Language Resources Association (ELRA).
Cite (Informal):
Extraction of Daily Changing Words for Question Answering (Sadamitsu et al., LREC 2014)
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PDF:
http://www.lrec-conf.org/proceedings/lrec2014/pdf/271_Paper.pdf