USING DEPENDENCY PATHS FOR ANSWERING DEFINITION QUESTIONS ON THE WEB

Alejandro Figueroa, John Atkinson

Abstract

This work presents a new approach to automatically answer definition questions from the Web. This approach learns n-gram language models from lexicalised dependency paths taken from abstracts provided byWikipedia and uses context information to identify candidate descriptive sentences containing target answers. Results using a prototype of the model showed the effectiveness of lexicalised dependency paths as salient indicators for the presence of definitions in natural language texts.

References

  1. Belkin, M. and Goldsmith, J. (2002). Using eigenvectors of the bigram graph to infer gram- matical features and categories. In Proceedings of the Morphology/Phonology Learning Workshop of ACL-02.
  2. Bunescu, R. and Mooney, R. J. (2005). A shortest path dependency kernel for relation extraction. In Proceedings of HLT/EMNLP.
  3. Chen, S. and Goodman, J. (1996). An empirical study of smoothing techniques for language modeling. In Proceedings of the 34th Annual Meeting of the ACL, pages 310-318.
  4. Chen, Y., Zhon, M., and Wang, S. (2006). Reranking answers for definitional qa using language modeling. In Coling/ACL-2006, pages 1081-1088.
  5. Chiu, A., Poupart, P., and DiMarco, C. (2007). Generating lexical analogies using dependency relations. In Proceedings of the 2007 Joint Conference on EMNLP and Computational Natural Language Learning, pages 561-570.
  6. Church, K. W. and Hanks, P. (1990). Word association norms, mutual information, and lexicography. In Computational Linguistics, Vol. 16, No. 1, pages 22- 29.
  7. Cui, T., Kan, M., and Xiao, J. (2004). A comparative study on sentence retrieval for definitional question answering. In SIGIR Workshop on Information Retrieval for Question Answering (IR4QA), pages 383-390.
  8. Figueroa, A. and Neumann, G. (2007). A Multilingual Framework for Searching Definitions on Web Snippets. In KI, pages 144-159.
  9. Harris, Z. (1954). Distributional structure. In Distributional structure. Word, 10(23), pages 146-162.
  10. Hildebrandt, W., Katz, B., and Lin, J. (2004). Answering definition questions using multiple knowledge sources. In Proceedings of HLT-NAACL, pages 49- 56.
  11. Joho, H. and Sanderson, M. (2000). Retrieving descriptive phrases from large amounts of free text. In 9th ACM conference on Information and Knowledge Management, pages 180-186.
  12. Joho, H. and Sanderson, M. (2001). Large scale testing of a descriptive phrase finder. In 1st Human Language Technology Conference, pages 219-221.
  13. Lin, D. and Pantel, P. (2001). Discovery of inference rules for question answering. In Journal of Natural Language Engineering, Volume 7, pages 343-360.
  14. Lin, J. and Demner-Fushman, D. (2006). Will pyramids built of nuggets topple over? In Proceedings of the main conference on HTL/NAACL, pages 383-390.
  15. Rose, D. E. and Levinson, D. (2004). Understanding user goals in web search. In WWW 7804: Proceedings of the 13th international conference on World Wide Web, pages 13-19.
  16. Soubbotin, M. M. (2001). Patterns of potential answer expressions as clues to the right answers. In Proceedings of the TREC-10 Conference.
  17. Xu, J., Cao, Y., Li, H., and Zhao, M. (2005). Ranking definitions with supervised learning methods. In WWW2005, pages 811-819.
  18. Zhai, C. and Lafferty, J. (2004). A study of smoothing methods for language models applied to information retrieval. In ACM Transactions on Information Systems, Vol. 22, No. 2, pages 179-214.
Download


Paper Citation


in Harvard Style

Figueroa A. and Atkinson J. (2009). USING DEPENDENCY PATHS FOR ANSWERING DEFINITION QUESTIONS ON THE WEB . In Proceedings of the Fifth International Conference on Web Information Systems and Technologies - Volume 1: WEBIST, ISBN 978-989-8111-81-4, pages 638-645. DOI: 10.5220/0001833806380645


in Bibtex Style

@conference{webist09,
author={Alejandro Figueroa and John Atkinson},
title={USING DEPENDENCY PATHS FOR ANSWERING DEFINITION QUESTIONS ON THE WEB},
booktitle={Proceedings of the Fifth International Conference on Web Information Systems and Technologies - Volume 1: WEBIST,},
year={2009},
pages={638-645},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001833806380645},
isbn={978-989-8111-81-4},
}


in EndNote Style

TY - CONF
JO - Proceedings of the Fifth International Conference on Web Information Systems and Technologies - Volume 1: WEBIST,
TI - USING DEPENDENCY PATHS FOR ANSWERING DEFINITION QUESTIONS ON THE WEB
SN - 978-989-8111-81-4
AU - Figueroa A.
AU - Atkinson J.
PY - 2009
SP - 638
EP - 645
DO - 10.5220/0001833806380645