License: Creative Commons Attribution 3.0 Unported license (CC BY 3.0)
When quoting this document, please refer to the following
DOI: 10.4230/OASIcs.SLATE.2014.215
URN: urn:nbn:de:0030-drops-45713
URL: http://dagstuhl.sunsite.rwth-aachen.de/volltexte/2014/4571/
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Mbarek, Rabeb ; Tmar, Mohamed ; Hattab, Hawete

Rocchio's Model Based on Vector Space Basis Change for Pseudo Relevance Feedback

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Abstract

Rocchio's relevance feedback model is a classic query expansion method and it has been shown to be effective in boosting information retrieval performance. The main problem with this method is that the relevant and the irrelevant documents overlap in the vector space because they often share same terms (at least the terms of the query). With respect to the initial vector space basis (index terms), it is difficult to select terms that separate relevant and irrelevant documents. The Vector Space Basis Change is used to separate relevant and irrelevant documents without any modification on the query term weights. In this paper, first, we study how to incorporate Vector Space Basis Change into the Rocchio's model. Second, we propose Rocchio's models based on Vector Space Basis Change, called VSBCRoc models. Experimental results on a TREC collection show that our proposed models are effective.

BibTeX - Entry

@InProceedings{mbarek_et_al:OASIcs:2014:4571,
  author =	{Rabeb Mbarek and Mohamed Tmar and Hawete Hattab},
  title =	{{Rocchio's Model Based on Vector Space Basis Change for Pseudo Relevance Feedback}},
  booktitle =	{3rd Symposium on Languages, Applications and Technologies},
  pages =	{215--224},
  series =	{OpenAccess Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-68-2},
  ISSN =	{2190-6807},
  year =	{2014},
  volume =	{38},
  editor =	{Maria Jo{\~a}o Varanda Pereira and Jos{\'e} Paulo Leal and Alberto Sim{\~o}es},
  publisher =	{Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{http://drops.dagstuhl.de/opus/volltexte/2014/4571},
  URN =		{urn:nbn:de:0030-drops-45713},
  doi =		{10.4230/OASIcs.SLATE.2014.215},
  annote =	{Keywords: Rocchio model, vector space basis change, pseudo relevance feedback}
}

Keywords: Rocchio model, vector space basis change, pseudo relevance feedback
Collection: 3rd Symposium on Languages, Applications and Technologies
Issue Date: 2014
Date of publication: 18.06.2014

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