130 search results - page 13 / 26 » NTT Question Answering System in TREC 2001 |
111
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EMNLP
2009
14 years 9 months ago
2009
In this paper, we investigate how an accurate question classifier contributes to a question answering system. We first present a Maximum Entropy (ME) based question classifier whi...
109
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NAACL
2004
15 years 1 months ago
2004
Definition questions represent a largely unexplored area of question answering--they are different from factoid questions in that the goal is to return as many relevant "nugg...
103
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SIGIR
2004
ACM
15 years 5 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 ...
TREC
2003
15 years 1 months ago
2003
CL Research’s question-answering system for TREC 2003 was modified away from reliance on database technology to the core underlying technology of using massive XML-tagging for p...
NAACL
2003
15 years 1 months ago
2003
In this paper we investigate the use of surface text patterns for a Maximum Entropy based Question Answering (QA) system. These text patterns are collected automatically in an uns...