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» Using Semantic Roles to Improve Question Answering
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CLEF
2008
Springer
14 years 11 months ago
Assessing the Impact of Thesaurus-Based Expansion Techniques in QA-Centric IR
In this paper, we assess the impact of using thesaurus-based query expansion methods, at the Information Retrieval (IR) stage of a Question Answering (QA) system. We focus on expan...
Luís Sarmento, Jorge Teixeira, Eugén...
EJC
2007
14 years 11 months ago
Comparing the Use of Feature Structures in Nativism and in Database Semantics
Linguistics has always been a field with a great diversity of schools and sub-schools. This has naturally led to the question of whether different grammatical analyses of the sam...
Roland Hausser
CIKM
2011
Springer
13 years 10 months ago
Improved answer ranking in social question-answering portals
Community QA portals provide an important resource for non-factoid question-answering. The inherent noisiness of user-generated data makes the identification of high-quality cont...
Felix Hieber, Stefan Riezler
LICS
2002
IEEE
15 years 2 months ago
Semantic Minimization of 3-Valued Propositional Formulae
This paper presents an algorithm for a non-standard logicminimization problem that arises in £ -valued propositional logic. The problem is motivated by the potential for obtainin...
Thomas W. Reps, Alexey Loginov, Shmuel Sagiv
ACL
2011
14 years 1 months ago
Learning Dependency-Based Compositional Semantics
Compositional question answering begins by mapping questions to logical forms, but training a semantic parser to perform this mapping typically requires the costly annotation of t...
Percy Liang, Michael I. Jordan, Dan Klein