Title
Cogex: A semantically and contextually enriched logic prover for question answering
Abstract
This paper presents the architecture and functionality of a logic prover designed for question answering. The approach transforms questions and answer passages into logic representations based on syntactic, semantic and contextual information. World knowledge supplements the linguistic, ontological, and temporal axioms supplied to the prover which renders a deep understanding of the relationship between the question and answer text. The trace of the proofs provides a basis for generating human comprehensible answer justifications. The results show that the prover boosts the performance of the Question Answering system on TREC 2004 questions by 12%.
Year
DOI
Venue
2007
10.1016/j.jal.2005.12.005
Journal of Applied Logic
Keywords
Field
DocType
Question answering,Natural language processing,Temporal reasoning,Automated reasoning,Ontologies
Ontology (information science),Automated reasoning,Ontology,Question answering,Information retrieval,Axiom,Computer science,Mathematical proof,Natural language processing,Artificial intelligence,Gas meter prover,Syntax
Journal
Volume
Issue
ISSN
5
1
1570-8683
Citations 
PageRank 
References 
26
1.16
8
Authors
4
Name
Order
Citations
PageRank
Dan I. Moldovan12924482.82
Christine Clark224527.41
Sanda Harabagiu32203221.65
Daniel Hodges4454.32