Pseudo relevance feedback using named entities for question answering

Luiz Augusto Pizzato; Diego Mollá; Cécile Paris

Pseudo relevance feedback using named entities for question answering

Luiz Augusto Pizzato, Diego Mollá, Cécile Paris

School of Computing

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

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Abstract

Relevance feedback has already proven its usefulness in probabilistic information retrieval (IR). In this research we explore whether a pseudo relevance feedback technique on IR can improve the Question Answering task (QA). The basis of our exploration is the use of relevant named entities from the top retrieved documents as clues of relevance. We discuss two interesting findings from these experiments: the reasons the results were not improved, and the fact that today’s metrics of IR evaluation on QA do not reflect the results obtained by a QA system.

Original language	English
Title of host publication	Proceedings of the 2006 Australasian language technology workshop 2006, November 30-December 1, 2006, Sancta Sophia College, Sydney
Editors	Lawrence Cavedon, Ingrid Zukerman
Place of Publication	Sydney
Publisher	Australasian Language Technology Association
Pages	83-90
Number of pages	8
ISBN (Print)	1741081467
Publication status	Published - 2006
Event	Australasian Language Technology Association Workshop - Sydney Duration: 30 Nov 2006 → 1 Dec 2006

Publication series

Name	Proceedings of the Australasian Language Technology Workshop
Publisher	Australasian Language Technology Association
ISSN (Print)	1834-7037

Workshop

Workshop	Australasian Language Technology Association Workshop
City	Sydney
Period	30/11/06 → 1/12/06

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Pizzato, L. A., Mollá, D., & Paris, C. (2006). Pseudo relevance feedback using named entities for question answering. In L. Cavedon, & I. Zukerman (Eds.), Proceedings of the 2006 Australasian language technology workshop 2006, November 30-December 1, 2006, Sancta Sophia College, Sydney (pp. 83-90). (Proceedings of the Australasian Language Technology Workshop). Australasian Language Technology Association.

Pizzato, Luiz Augusto ; Mollá, Diego ; Paris, Cécile. / Pseudo relevance feedback using named entities for question answering. Proceedings of the 2006 Australasian language technology workshop 2006, November 30-December 1, 2006, Sancta Sophia College, Sydney. editor / Lawrence Cavedon ; Ingrid Zukerman. Sydney : Australasian Language Technology Association, 2006. pp. 83-90 (Proceedings of the Australasian Language Technology Workshop).

@inproceedings{ed9ff0532c3f4ae884f9472923f3e97b,

title = "Pseudo relevance feedback using named entities for question answering",

abstract = "Relevance feedback has already proven its usefulness in probabilistic information retrieval (IR). In this research we explore whether a pseudo relevance feedback technique on IR can improve the Question Answering task (QA). The basis of our exploration is the use of relevant named entities from the top retrieved documents as clues of relevance. We discuss two interesting findings from these experiments: the reasons the results were not improved, and the fact that today{\textquoteright}s metrics of IR evaluation on QA do not reflect the results obtained by a QA system.",

author = "Pizzato, {Luiz Augusto} and Diego Moll{\'a} and C{\'e}cile Paris",

year = "2006",

language = "English",

isbn = "1741081467",

series = "Proceedings of the Australasian Language Technology Workshop",

publisher = "Australasian Language Technology Association",

pages = "83--90",

editor = "Lawrence Cavedon and Ingrid Zukerman",

booktitle = "Proceedings of the 2006 Australasian language technology workshop 2006, November 30-December 1, 2006, Sancta Sophia College, Sydney",

note = "Australasian Language Technology Association Workshop ; Conference date: 30-11-2006 Through 01-12-2006",

}

Pizzato, LA, Mollá, D & Paris, C 2006, Pseudo relevance feedback using named entities for question answering. in L Cavedon & I Zukerman (eds), Proceedings of the 2006 Australasian language technology workshop 2006, November 30-December 1, 2006, Sancta Sophia College, Sydney. Proceedings of the Australasian Language Technology Workshop, Australasian Language Technology Association, Sydney, pp. 83-90, Australasian Language Technology Association Workshop, Sydney, 30/11/06.

Pseudo relevance feedback using named entities for question answering. / Pizzato, Luiz Augusto; Mollá, Diego ; Paris, Cécile.
Proceedings of the 2006 Australasian language technology workshop 2006, November 30-December 1, 2006, Sancta Sophia College, Sydney. ed. / Lawrence Cavedon; Ingrid Zukerman. Sydney: Australasian Language Technology Association, 2006. p. 83-90 (Proceedings of the Australasian Language Technology Workshop).

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

TY - GEN

T1 - Pseudo relevance feedback using named entities for question answering

AU - Pizzato, Luiz Augusto

AU - Mollá, Diego

AU - Paris, Cécile

PY - 2006

Y1 - 2006

N2 - Relevance feedback has already proven its usefulness in probabilistic information retrieval (IR). In this research we explore whether a pseudo relevance feedback technique on IR can improve the Question Answering task (QA). The basis of our exploration is the use of relevant named entities from the top retrieved documents as clues of relevance. We discuss two interesting findings from these experiments: the reasons the results were not improved, and the fact that today’s metrics of IR evaluation on QA do not reflect the results obtained by a QA system.

AB - Relevance feedback has already proven its usefulness in probabilistic information retrieval (IR). In this research we explore whether a pseudo relevance feedback technique on IR can improve the Question Answering task (QA). The basis of our exploration is the use of relevant named entities from the top retrieved documents as clues of relevance. We discuss two interesting findings from these experiments: the reasons the results were not improved, and the fact that today’s metrics of IR evaluation on QA do not reflect the results obtained by a QA system.

M3 - Conference proceeding contribution

SN - 1741081467

T3 - Proceedings of the Australasian Language Technology Workshop

SP - 83

EP - 90

BT - Proceedings of the 2006 Australasian language technology workshop 2006, November 30-December 1, 2006, Sancta Sophia College, Sydney

A2 - Cavedon, Lawrence

A2 - Zukerman, Ingrid

PB - Australasian Language Technology Association

CY - Sydney

T2 - Australasian Language Technology Association Workshop

Y2 - 30 November 2006 through 1 December 2006

ER -

Pizzato LA, Mollá D , Paris C. Pseudo relevance feedback using named entities for question answering. In Cavedon L, Zukerman I, editors, Proceedings of the 2006 Australasian language technology workshop 2006, November 30-December 1, 2006, Sancta Sophia College, Sydney. Sydney: Australasian Language Technology Association. 2006. p. 83-90. (Proceedings of the Australasian Language Technology Workshop).

Pseudo relevance feedback using named entities for question answering

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