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- W2949934932 abstract "A new algorithm, termed subspace evolution and transfer (SET), is proposed for solving the consistent matrix completion problem. In this setting, one is given a subset of the entries of a low-rank matrix, and asked to find one low-rank matrix consistent with the given observations. We show that this problem can be solved by searching for a column space that matches the observations. The corresponding algorithm consists of two parts -- subspace evolution and subspace transfer. In the evolution part, we use a line search procedure to refine the column space. However, line search is not guaranteed to converge, as there may exist barriers along the search path that prevent the algorithm from reaching a global optimum. To address this problem, in the transfer part, we design mechanisms to detect barriers and transfer the estimated column space from one side of the barrier to the another. The SET algorithm exhibits excellent empirical performance for very low-rank matrices." @default.
- W2949934932 created "2019-06-27" @default.
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- W2949934932 date "2009-09-14" @default.
- W2949934932 modified "2023-09-26" @default.
- W2949934932 title "SET: an algorithm for consistent matrix completion" @default.
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- W2949934932 doi "https://doi.org/10.48550/arxiv.0909.2705" @default.
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