OPTIMIZING WEIGHTED ENSEMBLE SAMPLING OF STEADY STATES.
OPTIMIZING WEIGHTED ENSEMBLE SAMPLING OF STEADY STATES.
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DOI:
10.1137/18m1212100
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Zuckerman DM
中科院分区:
文献类型:
--
作者:
Aristoff D;Zuckerman DM
We propose parameter optimization techniques for weighted ensemble sampling of Markov chains in the steady-state regime. Weighted ensemble consists of replicas of a Markov chain, each carrying a weight, that are periodically resampled according to their weights inside of each of a number of bins that partition state space. We derive, from first principles, strategies for optimizing the choices of weighted ensemble parameters, in particular the choice of bins and the number of replicas to maintain in each bin. In a simple numerical example, we compare our new strategies with more traditional ones and with direct Monte Carlo.
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