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The Application of Restricted Counter Schemes to Three Models of Linear Search

Published online by Cambridge University Press:  27 July 2009

Micha Hofri  and
Hadas Shachnai
Micha Hofri
Affiliation:
Department of Computer ScienceUniversity of Houston Houston, Texas 77204-3475
Hadas Shachnai
Affiliation:
Department of Computer ScienceTechnion-Israel Institute of Technology, Haifa 32000, Israel
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Abstract

The mechanism of the Counter Scheme (CS) has been shown to be an effective statistical approach for the reorganization of linear lists, where the records in the list are referenced independently with a time homogeneous multinomial distribution. In this paper we show that derivative schemes can be used effectively in other contexts as well. Specifically, we consider (a) linear lists that are doubly linked, so that they may be accessed at both ends, (b) multilists, which result from dissecting a linear list into several pieces that are accessed independently and reside in WORM (write-once-read-many) store, and (c) reorganizing a disk, by copying its contents to another disk, so as to minimize the expected seek time required to access a record.

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Type
Articles
Information
Probability in the Engineering and Informational Sciences , Volume 6 , Issue 3 , July 1992 , pp. 371 - 389
Copyright
Copyright © Cambridge University Press 1992

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