661 search results - page 26 / 133 » Toward a Document Model for Question Answering Systems |
ACL
2009
14 years 7 months ago
2009
This paper introduces the concepts of asking point and expected answer type as variations of the question focus. They are of particular importance for QA over semistructured data,...
KDD
2004
ACM
15 years 10 months ago
2004
ACM
Information retrieval systems, based on keyword match, are evolving to question answering systems that return short passages or direct answers to questions, rather than URLs point...
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CLEF
2008
Springer
14 years 11 months ago
2008
Springer
The QA campaign at CLEF [1], was manly the same as that proposed last year. The results and the analyses reported by last year's participants suggested that the changes introd...
DIS
2001
Springer
15 years 2 months ago
2001
Springer
Abstract. It is an up-to-date challenge to get answers for novel questions which nobody has ever considered. Such a question is too rare to be satisfied with a past single documen...
UAI
2003
14 years 11 months ago
2003
We investigate the use of probabilistic models and cost-benefit analyses to guide the operation of a Web-based question-answering system. We first provide an overview of research ...