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6 年
matrix_SVD_decomposition.md
SVD分解即奇异值分解, 可以从特征值分解推导而来。先理解特征值分解 特征值和特征向量 对矩阵A,存在特征向量 和特征值 满足: 如果把矩阵A理解为线性变换,那么上式表示:可以找到向量 使得A只能对它进行 倍的拉伸。 以基变换来理解。我们先构建一个 ...
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