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arXiv 1707.02090math.STstat.TH
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结构矩阵估计与完备化

Structured Matrix Estimation and Completion

Olga Klopp, Yu Lu, Alexandre B. Tsybakov, Harrison H. Zhou

摘要:

在一般框架下研究了矩阵估计和矩阵完备化问题。该框架包括几个重要的模型作为特例,如高斯混合模型,混合隶属度模型,双聚类模型和字典学习。我们考虑了Frobenius范数和谱范数下信号矩阵估计的最优收敛速度。作为我们的一般结果的后果,我们得到了各种特殊模型的最小最大最优收敛速度。

英文摘要:

We study the problem of matrix estimation and matrix completion under a general framework. This framework includes several important models as special cases such as the gaussian mixture model, mixed membership model, bi-clustering model and dictionary learning. We consider the optimal convergence rates in a minimax sense for estimation of the signal matrix under the Frobenius norm and under the spectral norm. As a consequence of our general result we obtain minimax optimal rates of convergence for various special models.

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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