296 search results - page 4 / 60 » Learning the Relative Usefulness of Questions in Community Q... |
ACL
2009
13 years 6 months ago
2009
We present a graph-based semi-supervised learning for the question-answering (QA) task for ranking candidate sentences. Using textual entailment analysis, we obtain entailment sco...
CIKM
2010
Springer
13 years 7 months ago
2010
Springer
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...
CICLING
2006
Springer
14 years 4 days ago
2006
Springer
Abstract. In this paper, we present a method for the automatic acquisition of semantic-based reformulations from natural language questions. Our goal is to find useful and generic ...
SIGIR
2004
ACM
14 years 1 months ago
2004
ACM
Answer patterns have been shown to improve the performance of open-domain factoid QA systems. Their use, however, requires either constructing the patterns manually or developing ...
EACL
2003
ACL Anthology
13 years 9 months ago
2003
ACL Anthology
One of the major challenges in TRECstyle question-answering (QA) is to overcome the mismatch in the lexical representations in the query space and document space. This is particul...