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On some multi-request move-to-front heuristics

Published online by Cambridge University Press:  14 July 2016

R. M. Phatarfod*
Affiliation:
Monash University
A. J. Pryde*
Affiliation:
Monash University
*
Postal address: Department of Mathematics and Statistics, Monash University, Clayton, Victoria 3168, Australia.
Postal address: Department of Mathematics and Statistics, Monash University, Clayton, Victoria 3168, Australia.

Abstract

We consider the problem of self-organizing a linear list when the list is subjected to a random number of requests. Three separate move-to-front heuristics are considered. The difference between them lies in whether the items in the requested set are moved to the front in random order, or the same order as they were in originally, or in the order opposite to the one they were in originally. The eigenvalues of the transition probability matrices corresponding to the three heuristics are explicitly derived.

Type
Research Papers
Copyright
Copyright © Applied Probability Trust 1998 

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