Research

My work studies the order structure of learning problems: the order among the answers a learner proposes, among the corruption states a generative model passes through, and among the noise levels a diffusion model is trained on.

Order among answers

2026

Minimal Witness Reinforcement Learning

MWRL credits each proposal for the coverage the group’s union of certified sets would lose without it. The credit, derived from the problem definition, asks for minimality and for every alternative at once, and MWRL recovers most minimal witnesses where other methods return redundant supersets or a single witness.

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Order among corruption states

2026

The Lattice of Transition Laws

Diffusion, autoregression and the models between them are paths on one corruption lattice. The fewest steps of a zero-cost decoding schedule are set by the geometry of the data, and below that bound the ranking of schedules is predicted before decoding.

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Order among noise levels

2026

Noise-Level Adjacency in Diffusion Training

One network shared across noise levels benefits from their adjacency in the noise-level embedding, not from their direction: reversing the embeddings leaves the fitting error unchanged, while shuffling them raises it.

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Bayesian filtering

2026

Mori–Zwanzig Formulation of Bayesian Filtering

The information a projected filter discards bounds its cost only on average. Through the Mori–Zwanzig formalism, assumed-density filtering is the Markovian closure and every other projected filter adds a defect; its error is the propagated sum of its defects and of the returns of what it discards.

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