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arXiv 1903.06960stat.AP
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油藏模拟问题的可逆和不可逆马尔可夫链蒙特卡罗算法

Reversible and non-reversible Markov Chain Monte Carlo algorithms for reservoir simulation problems

P. Dobson, I. Fursov, G. Lord, M. Ottobre

摘要:

我们数值比较可逆和不可逆的马尔可夫链蒙特卡罗算法高维油藏问题的性能,因为手头的问题的性质,我们的样本的目标措施支持有界域。我们比较了两种策略来处理有界域,即反映建议的边界和拒绝他们时,他们落在域之外。我们观察到,对于复杂的高维问题,反射机制优于拒绝的方法,并引入不可逆性的马尔可夫链用于采样的优势是越来越明显的参数空间的维数增加。

英文摘要:

We compare numerically the performance of reversible and non-reversible Markov Chain Monte Carlo algorithms for high dimensional oil reservoir problems; because of the nature of the problem at hand, the target measures from which we sample are supported on bounded domains. We compare two strategies to deal with bounded domains, namely reflecting proposals off the boundary and rejecting them when they fall outside of the domain. We observe that for complex high dimensional problems reflection mechanisms outperform rejection approaches and that the advantage of introducing non-reversibility in the Markov Chain employed for sampling is more and more visible as the dimension of the parameter space increases.

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