Herding is a technique to sequentially generate deterministic samples from a probability distribution. In this work, we propose a continuous herded Gibbs sampler, that combines kernel herding on continuous densities with Gibbs sampling. Our algorithm allows for deterministically sampling from high-dimensional multivariate probability densities, without directly sampling from the joint density. Experiments with Gaussian mixture densities indicate that the L2 error decreases similarly to kernel herding, while the computation time is significantly lower, i.e., linear in the number of dimensions.
翻译:放牧是一种根据概率分布顺序生成确定性样本的技术。 在这项工作中,我们建议使用一个连续放牧的Gibbs采样器,将连续密度的内脏放牧与Gibbs采样结合起来。我们的算法允许从高维多变概率密度中进行确定性采样,而不直接从联合密度中取样。与高斯混合物密度进行的实验表明,L2误差与内核放牧类似,而计算时间则大大降低,即尺寸数线性。