Unverified50% confidenceFactExact time
SVD中Σ对角线上的奇异值按从大到小排列，最大的奇异值对应数据中最重要的变化方向，较小的奇异值往往对应噪声或次要信息
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50%
Confidence
Long-term
Relevance
8/28/2026
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