Author

Masayuki Ohzeki

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Preprint Sep 2026

Boundary-Cancelled Score-Hamiltonian Sampling

Diffusion sampling can be viewed as imaginary-time annealing of probability densities. From a forward/backward Euclidean Schr\"odinger pair, we show that fixing the noising drift forces the reverse score term, and that the same logarithmic force is the one-sided imaginary-time counterdiabatic connection of a supersymme...

Masayuki Ohzeki · 0 citations

#machine learning Preprint Aug 2026

Simulation-free and finite-time diffusion model

A framework for designing the reference process that achieves tractable time-dependent conditional distributions and then construct the reference process realizing them as its marginals is proposed, revealing that score matching is not fundamental to diffusion-model training but instead emerges naturally through revers...

Kentaro Kaba, Masayuki Ohzeki, Yuki Sughiyama · 0 citations