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是统计分析的一个重要理论.
1 {6 l. ~6 Z+ M) q' n+ C( QPrincipal ComponentsAnalysis (PCA). PCA is a useful statistical technique that has found application in, L, u8 s" v" l2 _% {" m$ r" v5 [0 k
fields such as face recognition and image compression, and is a common technique for: s. J6 @7 ^4 J0 k9 E; N
finding patterns in data of high dimension. |
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