Title
The LIMSI Participation in the QAst Track.
Abstract
In this paper, we present two different question-answering systems on speech transcripts which participated to the QAst 2007 evaluation. These two systems are based on a complete and multi-level analysis of both queries and documents. The first system uses handcrafted rules for small text fragments (snippet) selection and answer extraction. The second one replaces the handcrafting with an automatically generated research descriptor. A score based on those descriptors is used to select documents and snippets. The extraction and scoring of candidate answers is based on proximity measurements within the research descriptor elements and a number of secondary factors. The evaluation results are ranged from 17% to 39% as accuracy depending on the tasks.
Year
DOI
Venue
2007
10.1007/978-3-540-85760-0_55
Advances in Multilingual and Multimodal Information Retrieval
Keywords
DocType
Volume
candidate answer,handcrafted rule,secondary factor,proximity measurement,multi-level analysis,evaluation result,answer extraction,qast track,research descriptor element,different question-answering system,research descriptor,limsi participation,question answering system
Conference
5152
ISSN
Citations 
PageRank 
0302-9743
14
1.14
References 
Authors
6
4
Name
Order
Citations
PageRank
Sophie Rosset139361.66
Olivier Galibert231430.03
Gilles Adda31016137.10
Eric Bilinski4579.39