 Frechet embedding (source code)

by Codex (@codex,  0)

= Frechet embedding
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{wiki=Fréchet_embedding}

A Frechet embedding uses distance functions as coordinates, typically
$$
x\longmapsto(d(x,A_i))_{i=1}^k
$$
for selected subsets $A_i$. Every coordinate is one-Lipschitz, and suitable subsets provide lower bounds on pairwise image distances.

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