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arXiv 2007.00096stat.COmath.PRstat.ME
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序贯蒙特卡罗谱系收敛的简单条件及其应用

Simple conditions for convergence of sequential Monte Carlo genealogies with applications

Suzie Brown, Paul A. Jenkins, Adam M. Johansen, Jere Koskela

摘要:

我们提出了简单的条件下,限制系谱过程与一类相互作用的粒子系统与非中性的选择机制,随着粒子数量的增长,是一个时间重新缩放的金曼合并。序贯蒙特卡罗算法是在诸如非线性滤波和平滑等问题中近似积分的流行方法,这些问题采用这种类型的粒子系统。它们的表现强烈依赖于诱导谱系过程的性质。我们验证了我们的主要结果的标准序贯蒙特卡罗算法与广泛的一类低方差reservation计划,以及有条件的序贯蒙特卡罗与多项式reservation的条件。

英文摘要:

We present simple conditions under which the limiting genealogical process associated with a class of interacting particle systems with non-neutral selection mechanisms, as the number of particles grows, is a time-rescaled Kingman coalescent. Sequential Monte Carlo algorithms are popular methods for approximating integrals in problems such as non-linear filtering and smoothing which employ this type of particle system. Their performance depends strongly on the properties of the induced genealogical process. We verify the conditions of our main result for standard sequential Monte Carlo algorithms with a broad class of low-variance resampling schemes, as well as for conditional sequential Monte Carlo with multinomial resampling.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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