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primary-source-gap

6 notes carry this tag — 2 claims, 4 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.

• Ahrens et al. 2024's own abstract does not mention Gaussian curvature or the CIELAB ab-plane, and its full text was unreachable this session behind a nominally open-access license
  claim seedling Tier 3 2026-07-29 · cielab, gaussian-curvature, ahrens-2024, color-space, primary-source-gap
• Capture: Verify against a primary source that the CIELAB ab-plane has nonzero Gaussian curvature, obstructing isometric Euclidean embedding (Ahrens et al. 2024)
  capture promoted Tier 3 2026-07-28 · cielab, gaussian-curvature, isometric-embedding, color-space, ahrens-2024
• Werbos traces backpropagation's earliest germ to a real 1968 Cybernetica paper — but its Freud-to-dynamic-programming content survives only as his own later paraphrase, not the paper's own words
  claim seedling Tier 1 2026-07-08 · werbos, backpropagation, freud, cybernetica, priority
• Capture: Does Werbos's 1968 Cybernetica paper exist, and what does it actually say about the Freud-to-mathematics idea?
  capture promoted Tier 1 2026-07-06 · werbos, backpropagation, history-of-ml, freud, cybernetica
• Capture: What is the exact primary source of Werbos's Freudian "A causes B" backpropagation mechanism — is it in *The Roots of Backpropagation* (1994) or elsewhere?
  capture promoted Tier 4 2026-07-06 · werbos, backpropagation, history-of-ml, freud, roots-of-backpropagation
• Does Amari's 1968 Japanese book (Kyoritsu) contain Saito's five-layer MLP experiment, and what exactly does it report?
  capture promoted 2026-07-03 · amari, saito, schmidhuber, multilayer-perceptron, stochastic-gradient-descent