ACM SIGMOD Anthology SIGIR dblp.uni-trier.de

Efficient Processing of Vague Queries using a Data Stream Approach.

Ulrich Pfeifer, Norbert Fuhr: Efficient Processing of Vague Queries using a Data Stream Approach. SIGIR 1995: 189-197
@inproceedings{DBLP:conf/sigir/PfeiferF95,
  author    = {Ulrich Pfeifer and
               Norbert Fuhr},
  editor    = {Edward A. Fox and
               Peter Ingwersen and
               Raya Fidel},
  title     = {Efficient Processing of Vague Queries using a Data Stream Approach},
  booktitle = {SIGIR'95, Proceedings of the 18th Annual International ACM SIGIR
               Conference on Research and Development in Information Retrieval.
                Seattle, Washington, USA, July 9-13, 1995 (Special Issue of
               the SIGIR Forum)},
  publisher = {ACM Press},
  year      = {1995},
  isbn      = {0-89791-714-6},
  pages     = {189-197},
  ee        = {db/conf/sigir/PfeiferF95.html},
  crossref  = {DBLP:conf/sigir/95},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}
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Abstract

In this paper, we consider vague queries in text and fact databases. A vague query can be formulated as a combination of vague criterta. A single database object can meet a vague criterion to a certain degree. We confine ourselves to queries for which the answer can be computed efficiently by (perhaps repetitive) combination of rankings to new rankings. Since users usually will inspect some of the best answer objects only, the corresponding rankings need to be computed just as far as necessary to generate these first answer objects. In this contribution we describe an approach for estimating the number of elements needed from the basic rankings to compute a given number of elements of the resulting ranking. Experiments with a large text database prove the applicability of our approach.

Copyright © 1995 by the ACM, Inc., used by permission. Permission to make digital or hard copies is granted provided that copies are not made or distributed for profit or direct commercial advantage, and that copies show this notice on the first page or initial screen of a display along with the full citation.


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Edward A. Fox, Peter Ingwersen, Raya Fidel (Eds.): SIGIR'95, Proceedings of the 18th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval. Seattle, Washington, USA, July 9-13, 1995 (Special Issue of the SIGIR Forum). ACM Press 1995, ISBN 0-89791-714-6
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