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arXiv 1205.2629cs.LGstat.ML
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分数匹配的解释与推广

Interpretation and Generalization of Score Matching

University at Albany, SUNY(纽约州立大学奥尔巴尼分校)

Siwei Lyu

摘要:

分数匹配是近年来发展起来的一种参数学习方法,它对具有复杂划分函数的高维密度模型特别有效。在本文中,我们研究了两个问题,尚未完全解决的分数匹配。首先,我们提供了一个正式的最大似然和得分匹配之间的联系。我们的分析表明,分数匹配发现模型参数,更强大的噪声训练数据。其次,我们开发了一个泛化的分数匹配。基于这种推广,我们进一步证明了扩展的分数匹配模型的离散数据。

英文摘要:

Score matching is a recently developed parameter learning method that is particularly effective to complicated high dimensional density models with intractable partition functions. In this paper, we study two issues that have not been completely resolved for score matching. First, we provide a formal link between maximum likelihood and score matching. Our analysis shows that score matching finds model parameters that are more robust with noisy training data. Second, we develop a generalization of score matching. Based on this generalization, we further demonstrate an extension of score matching to models of discrete data.

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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