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Byoungwoo Park

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#machine learning Preprint Sep 2026

Proper Scoring Rule-based Diffusion for Probabilistic Weather Forecasting

Recent probabilistic weather forecasters train stochastic predictors with the continuous ranked probability score (CRPS) to generate each ensemble member in a single forward pass. These models learn the predictive distribution from the forecast context alone, which becomes difficult at longer forecast horizons where un...

Joonhyeong Park, G. Nam, Hyungi Lee et al. · 1 citation
#artificial intelligence Preprint Sep 2026

Diffusion Policy Improvement with Proposal-Conditioned Refinement Flows

This work forms a KL-regularized objective whose optimum induces a Gibbs policy over final actions under a Gaussian-smoothed behavior prior, and introduces Proposal-Conditioned Refinement Flows (PReFlow), a policy extraction method combining critic-based proposal selection with a conditional refinement flow.

Junhyun Ha, Ju-Ho Lee, Byoungwoo Park · 0 citations
Preprint Jul 2026

Function-Space Diffusion for Motion Planning

This work proposes Function-Space Diffusion for Motion Planning (FSD-MP), a diffusion-based motion planner that models trajectories as continuous functions and performs diffusion directly in function space, achieving discretization-invariant trajectory generation.

Zinuo Chang, Yipu Chen, Byoungwoo Park et al. · 0 citations

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