实现主成分分析和白化
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xZCAwhite = U * diag(1./sqrt(diag(S) + epsilon)) * U' * x; | xZCAwhite = U * diag(1./sqrt(diag(S) + epsilon)) * U' * x; | ||
+ | ==中英文对照== | ||
+ | :主成分分析 Principal Components Analysis (PCA) | ||
+ | :白化 whitening | ||
+ | :均值为零 zero-mean | ||
+ | :均值 mean value | ||
+ | :特征值 eigenvalue | ||
+ | :特征向量 eigenvector | ||
+ | :对称半正定矩阵 symmetric positive semi-definite matrix | ||
+ | :数值计算上稳定 numerically reliable | ||
+ | :降序排列 sorted in decreasing order | ||
+ | :奇异值 singular value | ||
+ | :奇异向量 singular vector | ||
+ | :向量化实现 vectorized implementation | ||
+ | :对角线 diagonal | ||
{{PCA}} | {{PCA}} | ||
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==中文译者== | ==中文译者== | ||
- | + | 周思远(visualzhou@gmail.com),张力(emma.lzhang@gmail.com),@谭晓阳_南航 |