Editing Dimensionality reduction (section)

===UMAP===
{{Main|Uniform manifold approximation and projection}}
[[Uniform manifold approximation and projection]] (UMAP) is a nonlinear dimensionality reduction technique. Visually, it is similar to t-SNE, but it assumes that the data is uniformly distributed on a [[locally connected]] [[Riemannian manifold]] and that the [[Riemannian metric]] is locally constant or approximately locally constant.