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arXiv 1711.02151math.OC
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矩阵完备化和稀疏恢复问题交替Projection Method算法的收敛性

On Convergence of the Alternating Projection Method for Matrix Completion and Sparse Recovery Problems

Ming Jun Lai, Abraham Varghese

摘要:

本文研究了交替投影(AP)算法在矩阵完备化和压缩感知问题中的收敛性。我们还提出了计算证据的算法的优异性能。在最后一节中,我们还利用代数几何技巧证明了,在已知的位置不变的情况下,如果一个秩为r的矩阵可以用一组已知元素以多种方式完成,那么,对于几乎所有已知元素的集合,该矩阵只能以多种方式完成为一个秩为r的矩阵。

英文摘要:

In this paper, we study the convergence of Alternating Projection (AP) algorithm for the matrix completion and compressed sensing problems. We also present computational evidence for the excellent performance of the algorithm. Also, in the last section, we prove using algebraic-geometric techniques that, fixing the known positions, if a rank r matrix can be completed in finitely many ways using one given set of known entries, then, for almost all set of known entries, the matrix can be only completed into a rank r matrix in finitely many ways.

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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