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[求助]
low rank approximate 已有2人參與
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證明,矩陣A秩為n,用秩k(小于n)矩陣可以很好近似A. [ 發(fā)自手機(jī)版 http://www.gaoyang168.com/3g ] |

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Basic low-rank approximation problem Seems have been very well studied. https://en.wikipedia.org/wiki/Low-rank_approximation |

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