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Indexing on Semantic Roles for Question Answering

by: Luiz Pizzato, and Diego Mollá

In: Proc. COLING Workshop on Information Retrieval for Question Answering (2008) , p. 8 pages.

Abstract

Semantic Role Labeling SRL has been used successfully in several stages of automated Question Answering QA systems but its inherent slow procedures make it difficult to use at the indexing stage of the document retrieval component. In this paper we confirm the intuition that SRL at indexing stage improves the performance of QA and propose a simplified technique named the Question Prediction Language Model QPLM, which provides similar information with a much lower cost. The methods were tested on four different QA systems and the results suggest that QPLM can be used as a good compromise between speed and accuracy.

BibTeX record

@inproceedings{Pizzato:2008,
  abstract = {Semantic Role Labeling (SRL) has been used successfully in several stages of automated Question Answering (QA) systems but its inherent slow procedures make it difficult to use at the indexing stage of the document retrieval component. In this paper we confirm the intuition that SRL at indexing stage improves the performance of QA and propose a simplified technique named the Question Prediction Language Model (QPLM), which provides similar information with a much lower cost. The methods were tested on four different QA systems and the results suggest that QPLM can be used as a good compromise between speed and accuracy.},
  added-at = {2008-07-01T10:45:03.000+0200},
  author = {Pizzato, Luiz and Moll{\'a}, Diego},
  biburl = {http://www.bibsonomy.org/bibtex/2cc132a9e1fda44b9f205512d8975952c/diego_ma},
  booktitle = {Proc. COLING Workshop on Information Retrieval for Question Answering},
  interhash = {12bafd7d5a0de7c44be5cc5dcb54f512},
  intrahash = {cc132a9e1fda44b9f205512d8975952c},
  keywords = {question_answering molla_publication AnswerFinder inf_retrieval},
  pages = {8 pages},
  timestamp = {2008-07-01T10:45:03.000+0200},
  title = {Indexing on Semantic Roles for Question Answering},
  year = 2008
}

Endnote record