130 search results - page 13 / 26 » NTT Question Answering System in TREC 2001 |
EMNLP
2009
13 years 5 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...
NAACL
2004
13 years 8 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...
SIGIR
2004
ACM
14 years 27 days 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
13 years 8 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
13 years 8 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...