Unsupervised Learning：Neighbor Embedding
Unsupervised Learning：Neighbor Embedding （非線性降維） Manifold Learning 將高維空間的 Manifold 映射到低維空間「攤平」，這樣就可以計算他的直線距離，以便於聚類和監督學習 Locally Linear Embedding (LLE) 也就是說，我們先在高維空間中通過minimize 找到Xi和Xj的關係Wij，然後在低維空間中通過
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相關文章
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