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arXiv 1503.00214stat.ML
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带噪声和离群值的矩阵完备化

Matrix Completion with Noisy Entries and Outliers

Raymond K. W. Wong, Thomas C. M. Lee

摘要:

本文研究了当观测数据中含有噪声和野值时的矩阵完备化问题。首先介绍了一种新的优化准则,其中恢复矩阵被定义为它的解决方案。该标准使用了稳健统计文献中著名的Huber函数来降低离群值的影响。一个实用的算法来解决所涉及的优化。该算法速度快,实现简单,且单调收敛。此外,所提出的方法理论上被证明是稳定的,在一个明确的意义。通过一系列仿真实验,包括图像修复,证明了其有前途的经验性能。

英文摘要:

This paper considers the problem of matrix completion when the observed entries are noisy and contain outliers. It begins with introducing a new optimization criterion for which the recovered matrix is defined as its solution. This criterion uses the celebrated Huber function from the robust statistics literature to downweigh the effects of outliers. A practical algorithm is developed to solve the optimization involved. This algorithm is fast, straightforward to implement, and monotonic convergent. Furthermore, the proposed methodology is theoretically shown to be stable in a well defined sense. Its promising empirical performance is demonstrated via a sequence of simulation experiments, including image inpainting.

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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