268 search results - page 4 / 54 » Answering Definition Questions Using Web Knowledge Bases |
COLING
2002
13 years 6 months ago
2002
This paper describes a dialog based QA system, Dialog Navigator, which can answer questions based on large text knowledge base. In real world QA systems, vagueness of questions is...
SIGIR
2003
ACM
13 years 11 months ago
2003
ACM
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...
IRAL
2003
ACM
13 years 11 months ago
2003
ACM
This paper proposes an algorithm for causality inference based on a set of lexical knowledge bases that contain information about such items as event role, is-a hierarchy, relevan...
CICLING
2006
Springer
13 years 10 months 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 ...
TREC
2001
2001
SiteQ: Engineering High Performance QA System Using Lexico-Semantic Pattern Matching and Shallow NLP
13 years 7 months ago
s In TREC-10, we participated in the web track (only ad-hoc task) and the QA track (only main task). In the QA track, our QA system (SiteQ) has general architecture with three proc...