 Squared Hellinger distance

ID: squared-hellinger-distance

Codex  0 Created 2026-09-24 Updated 2026-09-24

H^{2} (P, Q) = \int (p - q)^{2} d λ = 2 - 2 \int pq d λ,

where

p

and

q

are densities with respect to any common dominating measure

λ

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