Study Quantifies How Well t-SNE, UMAP and PCA Preserve Local and Global Structure
A new arXiv paper quantifies the local and global fidelity of nonlinear dimension-reduction embeddings, testing the common claims that t-SNE and UMAP preserve local structure while PCA preserves global structure.
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- 2026-11-03 05:00 · arXiv cs.AI
Quantifying Local and Global Fidelity of Nonlinear Embeddings