Maximal dispersion of adaptive random walks

Maximum entropy random walks (MERWs) are maximally dispersing and play a key role in optimizing information spreading in various contexts. However, building MERWs comes at the cost of knowing beforehand the global structure of the network, a requirement that makes them totally inadequate in real cas...

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Bibliographic Details
Published in:arXiv.org 2023-01
Main Authors: Gabriele Di Bona, Leonardo Di Gaetano, Latora, Vito, Coghi, Francesco
Format: Article
Language:English
Subjects:
Dispersion
Maximum entropy
Random walk
Online Access:Get full text
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Summary:Maximum entropy random walks (MERWs) are maximally dispersing and play a key role in optimizing information spreading in various contexts. However, building MERWs comes at the cost of knowing beforehand the global structure of the network, a requirement that makes them totally inadequate in real case scenarios. Here, we propose an adaptive random walk (ARW), which instead maximizes dispersion by updating its transition rule on the local information collected while exploring the network. We show how to derive ARW via a large-deviation representation of MERW and study its dynamics on synthetic and real world networks.
ISSN:2331-8422
DOI:10.48550/arxiv.2202.13923