A precise asymptotic expansion of the variance of the size of a trie built on random binary strings is presented. This data structure appears in some hashing schemes and communications protocols. The variance is asymptotically linear, and numerical results are given. The reader is referred to an earlier work for formal proofs.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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Régnier et al. (1989) studied this question.
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