[1] Yuan Xiaojie, Yu Shitao, Shi Jianxing, Chen Qiushuang, et al. Question classification in question answeringbased on real-world web data sets [J]. Journal of Southeast University (English Edition), 2008, 24 (3): 272-275. [doi:10.3969/j.issn.1003-7985.2008.03.005]

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Question classification in question answeringbased on real-world web data sets()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

24

Issue:

2008 3

Page:

272-275

Research Field:

Computer Science and Engineering

Publishing date:

2008-09-30

Info

Title:

Question classification in question answeringbased on real-world web data sets

Author(s):

Yuan Xiaojie;  Yu Shitao;  Shi Jianxing;  Chen Qiushuang

College of Information Technical Science, Nankai University, Tianjin 300071, China

Keywords:

question classification;  question answering;  real-world web data sets;  question and answer web forums;  re-ranking model

PACS:

TP391

DOI:

10.3969/j.issn.1003-7985.2008.03.005

Abstract:

To improve question answering(QA)performance based on real-world web data sets, a new set of question classes and a general answer re-ranking model are defined.With pre-defined dictionary and grammatical analysis, the question classifier draws both semantic and grammatical information into information retrieval and machine learning methods in the form of various training features, including the question word, the main verb of the question, the dependency structure, the position of the main auxiliary verb, the main noun of the question, the top hypernym of the main noun, etc.Then the QA query results are re-ranked by question class information.Experiments show that the questions in real-world web data sets can be accurately classified by the classifier, and the QA results after re-ranking can be obviously improved.It is proved that with both semantic and grammatical information, applications such as QA, built upon real-world web data sets, can be improved, thus showing better performance.

References:

[1] Sun R, Jiang J, Tan Y F, et al.Using syntactic and semantic relation analysis in question answering [C]//Proc of the 14th Text REtrieval Conference.Gaithersburg, Maryland, 2005.
[2] Harabagiu S, Moldovan D, Clark C, et al.Employing two question answering systems in TREC 2005 [C]//Proc of the 14th Text REtrieval Conference.Gaithersburg, Maryland, 2005.
[3] Wen Xu, Zhang Yu, Liu Ting, et al.Syntactic structure parsing based Chinese question classification [J].Journal of Chinese Information Processing, 2006, 20(2):33-39.(in Chinese)
[4] Lin Xudong, Peng Hong, Lin Piyuan, et al.Question interpretation and question classification based on dependency relations [J].Computer Science, 2007, 34(7):208-210.(in Chinese)
[5] Lo Ka Kan, Lam Wai.Using semantic relations with world knowledge for question answering [C]//Proc of the 15th Text REtrieval Conference.Gaithersburg, Maryland, 2006.
[6] Soricut R, Brill E.Automatic question answering using the web: beyond the factoid [J].Information Retrieval, 2006, 9(2):191-206.
[7] Bilotti Matthew W, Ogilvie Paul, Callan Jamie, et al.Structured retrieval for question answering [C]//Proc of the 30th ACM SIGIR Conference.Amsterdam, the Netherlands, 2007:351-358.
[8] Jijkoun V, de Rijke M.Retrieving answers from frequently asked questions pages on the web [C]//Proc of the 14th ACM CIKM Conference.Bremen, Germany, 2005:76-83.
[9] Li Xin, Roth Dan.Learning question classifiers [C]//Proc of the 19th International Conference on Computational Linguistics.Taipei, China, 2002:556-562.
[10] Li Xin, Roth Dan, Small Kevin.The role of semantic information in learning question classifiers [C]//Proc of the 1st International Joint Conference on Natural Language Processing.Cambridge University Press, 2006:229-249.

Memo

Memo:

Biography: Yuan Xiaojie(1963—), female, doctor, professor, yuanxj@nankai.edu.cn.
Foundation items: Microsoft Research Asia Internet Services in Academic Research Fund(No.FY07-RES-OPP-116), the Science and Technology Development Program of Tianjin(No.06YFGZGX05900).
Citation: Yuan Xiaojie, Yu Shitao, Shi Jianxing, et al.Question classification in question answering based on real-world web data sets[J].Journal of Southeast University(English Edition), 2008, 24(3):272-275.

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