573 search results - page 2 / 115 » A Semantic Approach to Question Answering Systems |
DKE
2008
13 years 5 months ago
2008
In this paper, we discuss a novel technique based on semantic constraints to improve the performance and portability of a reformulation-based question answering system. First, we ...
ACSC
2006
IEEE
13 years 12 months ago
2006
IEEE
In the current state of the rapid growth of information resources and the huge number of requests submitted by users to existing information retrieval systems; recently, Question ...
CLEF
2010
Springer
13 years 6 months ago
2010
Springer
Classic textual question answering (QA) approaches that rely on statistical keyword relevance scoring without exploiting semantic content are useful to a certain extent, but are li...
RIAO
2004
13 years 7 months ago
2004
This paper presents our experiments in applying semantic information to improve the precision of the information retrieval module in a closed-domain question-answering system. Tha...
TREC
2007
13 years 7 months ago
2007
We describe recent extensions to the Ephyra question answering (QA) system and their evaluation in the TREC 2007 QA track. Existing syntactic answer extraction approaches for fact...