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The choice of reference points in best-match file searching

Published:01 May 1977Publication History
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Abstract

Improvements to the exhaustive search method of best-match file searching have previously been achieved by doing a preprocessing step involving the calculation of distances from a reference point. This paper discusses the proper choice of reference points and extends the previous algorithm to use more than one reference point. It is shown that reference points should be located outside of data clusters. The results of computer simulations are presented which show that large improvements can be achieved by the proper choice and location of multiple reference points.

References

  1. 1 Burkhard, W.A. and Keller, R.M.: Some approaches to bestmatch file searching. Comm. ACM, 16, 4 (April 1973), 230-236. Google ScholarGoogle ScholarDigital LibraryDigital Library
  2. 2 Cover, T.M. and Hart, P.E.: Nearest neighbor pattern classification. IEEE Trans. Info. Theory, IT-13 (January 1967), 21-27.Google ScholarGoogle ScholarCross RefCross Ref

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  • Published in

    cover image Communications of the ACM
    Communications of the ACM  Volume 20, Issue 5
    May 1977
    69 pages
    ISSN:0001-0782
    EISSN:1557-7317
    DOI:10.1145/359581
    Issue’s Table of Contents

    Copyright © 1977 ACM

    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    Association for Computing Machinery

    New York, NY, United States

    Publication History

    • Published: 1 May 1977

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