Download Markov Chain Aggregation for Agent-Based Models by Sven Banisch PDF

By Sven Banisch

This self-contained textual content develops a Markov chain procedure that makes the rigorous research of a category of microscopic types that designate the dynamics of complicated structures on the person point attainable. It offers a basic framework of aggregation in agent-based and similar computational versions, one that uses lumpability and data thought with a view to hyperlink the micro and macro degrees of remark. the place to begin is a microscopic Markov chain description of the dynamical strategy in entire correspondence with the dynamical habit of the agent-based version (ABM), that's acquired via contemplating the set of all attainable agent configurations because the country house of an immense Markov chain. An specific formal illustration of a ensuing “micro-chain” together with microscopic transition charges is derived for a category of versions by utilizing the random mapping illustration of a Markov technique. the kind of likelihood distribution used to enforce the stochastic a part of the version, which defines the updating rule and governs the dynamics at a Markovian point, performs a vital half within the research of “voter-like” types utilized in inhabitants genetics, evolutionary video game idea and social dynamics. The publication demonstrates that the matter of aggregation in ABMs - and the lumpability stipulations particularly - could be embedded right into a extra common framework that employs details concept to be able to determine various degrees and proper scales in advanced dynamical systems

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