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Author, Editor

Author(s):

Broschart, Andreas
Schenkel, Ralf

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Editor(s):

BibTeX Citekey*:	BroschartSchenkel_MPIR2010
Language:	English

Title, Institution

Title*:	Real-time text queries with tunable term pair indexes
Institution*:	Max-Planck-Institut Informatik
Publishers or Institutions Address*:	Saarbruecken, Germany
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No, Year, pp.,

Number*:	MPI-I-2010-5-006	Pages*:	41
Month:		VG Wort Pages*:	.
Year*:	2010	ISBN/ISSN:

DOI:

Note, Abstract, ©

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(LaTeX) Abstract:	Term proximity scoring is an established means in information retrieval for improving result quality of full-text queries. Integrating such proximity scores into efficient query processing, however, has not been equally well studied. Existing methods make use of precomputed lists of documents where tuples of terms, usually pairs, occur together, usually incurring a huge index size compared to term-only indexes. This paper introduces a joint framework for trading off index size and result quality, and provides optimization techniques for tuning precomputed indexes towards either maximal result quality or maximal query processing performance, given an upper bound for the index size. The framework allows to selectively materialize lists for pairs based on a query log to further reduce index size. Extensive experiments with two large text collections demonstrate runtime improvements of several orders of magnitude over existing text-based processing techniques with reasonable index sizes.
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Correlation

MPG Unit:	Max-Planck-Institut für Informatik

MPG Subunit:	Databases and Information Systems Group
Audience:	experts only
Appearance:	MPII WWW Server, MPII FTP Server, MPG publications list, university publications list, working group publication list, Fachbeirat

BibTeX Entry:

@TECHREPORT{BroschartSchenkel_MPIR2010,
AUTHOR = {Broschart, Andreas and Schenkel, Ralf},
TITLE = {Real-time text queries with tunable term pair indexes},
YEAR = {2010},
INSTITUTION = {Max-Planck-Institut Informatik},
NUMBER = {MPI-I-2010-5-006},
PAGES = {41},
ADDRESS = {Saarbruecken, Germany},
}

Entry last modified by Ralf Schenkel, 08/17/2011

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	Editor(s) Ralf Schenkel	Created 08/17/2011 12:33:08 PM
Revision 0.	Editor Ralf Schenkel	Edit Date 17.08.2011 12:33:08

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