Gómez, José M., Buscaldi, Davide, Rosso, Paolo, Sanchis Arnal, Emilio
JIRS language-independent passage retrieval system: a comparative study
URI: http://ltrc.iiit.net/icon2007/acceptedpapers.htm
DOI: 
ISSN: 
Abstract: 
Passage Retrieval (PR) systems are used
as the first step of the actual Question Answering (QA) systems. Usually, PR systems
are traditional information retrieval
systems which are not oriented to the specific problematic of QA. In fact, these systems only search for the question keywords.
We have developed a QA-oriented
PR system which searches the question
structures in the document collection in
order to find the passages with the greatest
probability to contain the answer. In this paper, we have carried out a comparative
study of our system with other well-known PR models. The experiments show that with our language-independent n-gram model is possible to improve the coverage of the correct answers using natural language questions. The JIRS Distance Density N-gram system has been
already adapted to several European languages.
At the moment, we have been adapting it also to some of the official Indian languages in order to prove further the independence of the language.
Keywords:Information retrieval, Question answering, Information extraction, JIRS
info:eu-repo/semantics/article