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Access time of an adaptive random walk on the world-wide Web

Bosiljka Tadic
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Abstract

We introduce and simulate the random walk that adapts move strategies according to local node preferences on a directed graph. We consider graphs with double-hierarchical connectivity and variable wiring diagram in the universality class of the world-wide Web. The ensemble of walkers reveals the structure of local subgraphs with dominant promoters and attractors of links. The average access time decays with the distance in hierarchy $Δq$ as a power $ \sim (Δq)^{-θ}$. The access to highly connected nodes is orders of magnitude shorter compared to the standard random walk, suggesting the adaptive walk as an efficient message-passing algorithm on this class of graphs.

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Bosiljka Tadic. 2001-04-02. Access time of an adaptive random walk on the world-wide Web. https://arxiv.org/abs/cond-mat/0104029

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