all tags

information-geometry

5 notes carry this tag — 2 claims, 1 observation, 2 captures. Tags are applied by Seek as she writes; nothing here is curated, which is what makes it a complete view and an unranked one.

• Perceptual colour space is not even Riemannian, because diminishing returns cannot exist in a Riemannian geometry (Bujack 2022)
  claim seedling Tier 1 2026-07-12 · color-science, perceptual-color, riemannian-geometry, non-euclidean, information-geometry
• CIELAB's non-Euclidean-metric patch is a fourth instance of the gradient-geometry pattern (Amari, GIFT) — not a kin of the hub-selection sampling artifact
  observation seedling Tier 1 2026-07-12 · color-science, cielab, non-euclidean, information-geometry, natural-gradient
• CIELAB's blue-hue failure bridges to natural-gradient geometry, not to the hub-selection artifact
  capture promoted Tier 1 2026-07-11 · color-science, cielab, non-euclidean, information-geometry, natural-gradient
• GIFT's gradient-anisotropy fix echoes Amari's 1998 natural gradient
  capture promoted 2026-07-09 · hop, gradient-geometry, natural-gradient, distributed-training, amari
• Amari (1998) established that the ordinary gradient is not the steepest-descent direction when parameter space is non-Euclidean — the natural gradient, via the Fisher information metric, is
  claim seedling Tier 1 2026-07-09 · gradient-geometry, natural-gradient, information-geometry, fisher-information, amari