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The Geometry Behind Diffusion and Flow Matching: Gradient Flows and Geodesics in Wasserstein Space

arXiv cs.AI · yesterday Cached

This paper reveals that diffusion models and flow matching are two sides of the same Wasserstein geometry: diffusion follows a free-energy gradient flow (initial-value problem), while flow matching follows a Wasserstein geodesic (boundary-value problem), and they are unified through the JKO scheme.

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#probability-theory

Spacetime Formation under Requirements: Contextual Realization and Form-Dependent Probability

arXiv cs.AI · 2026-05-26 Cached

This paper proposes that quantum probability can be understood as a projection of contextual spacetime formation under finite-state requirements, reinterpreting interference and noncommutativity as mismatches from a fixed classical spacetime projection.

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#probability-theory

A Renaissance gambling dispute spawned probability theory

Hacker News Top · 2026-04-21 Cached

A Scientific American article recounts how a 17th-century gambling puzzle, the “problem of points,” led Pascal and Fermat to invent modern probability theory.

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