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» A Noisy-Channel Approach to Question Answering
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DKE
2008
104views more  DKE 2008»
13 years 6 months ago
Improving the performance of question answering with semantically equivalent answer patterns
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 ...
Leila Kosseim, Jamileh Yousefi
EC
2008
102views ECommerce» more  EC 2008»
13 years 6 months ago
Genetic Algorithms for Data-Driven Web Question Answering
We present1 an evolutionary approach for the computation of exact answers to Natural Languages (NL) questions. Answers are extracted directly from the N
Alejandro Figueroa, Günter Neumann
FINTAL
2006
13 years 10 months ago
Experiments in Passage Selection and Answer Identification for Question Answering
Question Answering (QA) aims at providing users with short text units that answer specific, well-formed natural language questions. A two stage architecture is widely adopted for t...
Horacio Saggion, Robert J. Gaizauskas
SIGIR
2004
ACM
14 years 15 hour ago
Answer models for question answering passage retrieval
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 ...
Andrés Corrada-Emmanuel, W. Bruce Croft
CICLING
2008
Springer
13 years 8 months ago
Improving Question Answering by Combining Multiple Systems Via Answer Validation
Nowadays there exist several kinds of question answering systems. According to recent evaluation results, most of these systems are complementary (i.e., each one is better than the...
Alberto Téllez-Valero, Manuel Montes-y-G&oa...