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推荐系统之矩阵分解模型-原理篇
source link: https://zhuanlan.zhihu.com/p/360689325
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矩阵求导术（下）
本文承接上篇 https://zhuanlan.zhihu.com/p/24709748，来讲矩阵对矩阵的求导术。使用小写字母x表示标量，粗体小写字母\boldsymbol{x} 表示列向量，大写字母X表示矩阵。矩阵对矩阵的求导采…
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