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arXiv 2104.09185cs.LGstat.ML
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多先验分布下回归的混合高斯过程

Mixtures of Gaussian Processes for regression under multiple prior distributions

Otto-Friedrich-University(奥托-弗里德里希大学)

Sarem Seitz

摘要:

在构建贝叶斯机器学习模型时,我们可能会面临多个不同的先验分布,因此需要在模型中以合理的方式适当考虑它们。虽然这种情况在经典贝叶斯统计中得到了很好的探索,但对于复杂的机器学习问题,开发相应的方法似乎很有用。考虑到它们的基本贝叶斯框架及其广泛的流行性,高斯过程是解决这一任务的良好候选者。因此,我们扩展了高斯过程回归的混合模型的思想,以便同时处理多个先验信念-分析回归公式和稀疏变分方法都被考虑。此外,我们考虑使用我们的方法,另外占功能回归问题中的先验误指定的问题。

英文摘要:

When constructing a Bayesian Machine Learning model, we might be faced with multiple different prior distributions and thus are required to properly consider them in a sensible manner in our model. While this situation is reasonably well explored for classical Bayesian Statistics, it appears useful to develop a corresponding method for complex Machine Learning problems. Given their underlying Bayesian framework and their widespread popularity, Gaussian Processes are a good candidate to tackle this task. We therefore extend the idea of Mixture models for Gaussian Process regression in order to work with multiple prior beliefs at once - both a analytical regression formula and a Sparse Variational approach are considered. In addition, we consider the usage of our approach to additionally account for the problem of prior misspecification in functional regression problems.

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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