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arXiv 2102.10583stat.COstat.ME
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无似然推理的逆高斯过程回归

Inverse Gaussian Process regression for likelihood-free inference

Hongqiao Wang, Ziqiao Ao, Tengchao Yu, Jinglai Li

摘要:

在这项工作中,我们考虑贝叶斯推断问题与棘手的似然函数。我们提出了一种方法来计算一个近似的后验与有限数量的模型模拟。该方法的特征在于逆高斯过程回归(IGPR),即,在该方法中,我们提供了一个自适应算法与回火过程来构造边缘后验分布的近似。通过算例,我们证明了IGPR与一些常用算法相比具有竞争力的性能,特别是在统计稳定性和计算效率方面,而付出的代价是它只能计算边缘后验的加权高斯近似。

英文摘要:

In this work we consider Bayesian inference problems with intractable likelihood functions. We present a method to compute an approximate of the posterior with a limited number of model simulations. The method features an inverse Gaussian Process regression (IGPR), i.e., one from the output of a simulation model to the input of it. Within the method, we provide an adaptive algorithm with a tempering procedure to construct the approximations of the marginal posterior distributions. With examples we demonstrate that IGPR has a competitive performance compared to some commonly used algorithms, especially in terms of statistical stability and computational efficiency, while the price to pay is that it can only compute a weighted Gaussian approximation of the marginal posteriors.

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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