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31

ACL
2008

154views Computational Linguistics» more ACL 2008»

Using Conditional Random Fields to Extract Contexts and Answers of Questions from Online Forums

13 years 11 months ago

Online forum discussions often contain vast amounts of questions that are the focuses of discussions. Extracting contexts and answers together with the questions will yield not on...

Shilin Ding, Gao Cong, Chin-Yew Lin, Xiaoyan Zhu

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24

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LREC
2008

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Cost-Sensitive Learning in Answer Extraction

13 years 11 months ago

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One problem of data-driven answer extraction in open-domain factoid question answering is that the class distribution of labeled training data is fairly imbalanced. This imbalance...

Michael Wiegand, Jochen L. Leidner, Dietrich Klako...

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32

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TREC
2004

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THUIR at TREC 2004: QA

13 years 11 months ago

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In this paper, we describe ideas and related experiments of Tsinghua University IR group in TREC 2004 QA track. In this track, our system consists three components: Question analy...

Wei Tan 0002, Qunxiu Chen, Shaoping Ma

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26

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NAACL
2007

112views Computational Linguistics» more NAACL 2007»

Question Answering Using Integrated Information Retrieval and Information Extraction

13 years 11 months ago

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This paper addresses the task of providing extended responses to questions regarding specialized topics. This task is an amalgam of information retrieval, topical summarization, a...

Barry Schiffman, Kathleen McKeown, Ralph Grishman,...

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28

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AWIC
2007
Springer

100views Internet Technology» more AWIC 2007»

A Proposal for a Web Information Extraction and Question-Answer System

14 years 3 months ago