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CIKM
2004
Springer
15 years 3 months ago
Approximating the top-m passages in a parallel question answering system
We examine the problem of retrieving the top-m ranked items from a large collection, randomly distributed across an n-node system. In order to retrieve the top m overall, we must ...
Charles L. A. Clarke, Egidio L. Terra
SIGIR
2003
ACM
15 years 3 months ago
Structured use of external knowledge for event-based open domain question answering
One of the major problems in question answering (QA) is that the queries are either too brief or often do not contain most relevant terms in the target corpus. In order to overcom...
Hui Yang, Tat-Seng Chua, Shuguang Wang, Chun-Keat ...
CIKM
2010
Springer
14 years 8 months ago
Rank learning for factoid question answering with linguistic and semantic constraints
This work presents a general rank-learning framework for passage ranking within Question Answering (QA) systems using linguistic and semantic features. The framework enables query...
Matthew W. Bilotti, Jonathan L. Elsas, Jaime G. Ca...
ACL
2010
14 years 8 months ago
Optimizing Question Answering Accuracy by Maximizing Log-Likelihood
In this paper we demonstrate that there is a strong correlation between the Question Answering (QA) accuracy and the log-likelihood of the answer typing component of our statistic...
Matthias H. Heie, Edward W. D. Whittaker, Sadaoki ...
IRI
2008
IEEE
15 years 4 months ago
An alignment-based surface pattern for a question answering system
In this paper, we propose an alignment-based surface pattern approach, called ABSP, which integrates semantic information into syntactic patterns for question answering (QA). ABSP...
Cheng-Lung Sung, Cheng-Wei Lee, Hsu-Chun Yen, Wen-...