arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1001.0175stat.COstat.ML
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椭圆切片采样

Elliptical slice sampling

Iain Murray, Ryan Prescott Adams, David J. C. MacKay

摘要:

许多概率模型使用潜在多变量高斯分布或高斯过程在变量之间引入强依赖性。提出了一种新的马尔可夫链蒙特卡罗算法,用于对具有多元高斯先验的模型进行推理。其主要特性是:1)它有简单的通用代码,适用于许多模型,2)它没有自由参数,3)它适用于各种基于高斯过程的模型。这些属性使我们的方法非常适合在模型构建时使用,无需花费时间来推导和调整更复杂算法的更新。

英文摘要:

Many probabilistic models introduce strong dependencies between variables using a latent multivariate Gaussian distribution or a Gaussian process. We present a new Markov chain Monte Carlo algorithm for performing inference in models with multivariate Gaussian priors. Its key properties are: 1) it has simple, generic code applicable to many models, 2) it has no free parameters, 3) it works well for a variety of Gaussian process based models. These properties make our method ideal for use while model building, removing the need to spend time deriving and tuning updates for more complex algorithms.

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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