Discrete Mathematics & Theoretical Computer Science, Vol 5 (2002)

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DMTCS vol 5 no 1 (2002), pp. 1-16

Discrete Mathematics & Theoretical Computer Science


Volume 5 n° 1 (2002), pp. 1-16

author:Markus E. Nebel
title:The Stack-Size of Combinatorial Tries Revisited
keywords:Tries, Blockcodes, Stack-Size, Analytical Combinatorics
abstract:In the present paper we consider a generalized class of extended binary trees in which leaves are distinguished in order to represent the location of a key within a trie of the same structure. We prove an exact asymptotic equivalent to the average stack-size of trees with α internal nodes and β leaves corresponding to keys; we assume that all trees with the same parameters α and β have the same probability. The assumption of that uniform model is motivated for example by the usage of tries for the compression of blockcodes. Furthermore, we will prove asymptotics for the r-th moments of the stack-size and we will show that a normalized stack-size possesses a theta distribution in the limit.

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reference: Markus E. Nebel (2002), The Stack-Size of Combinatorial Tries Revisited, Discrete Mathematics and Theoretical Computer Science 5, pp. 1-16
bibtex:For a corresponding BibTeX entry, please consider our BibTeX-file.
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Automatically produced on Thu Jan 24 21:14:49 CET 2002 by ifalk