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Minjong Cheon

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#machine learning Preprint Nov 2026

Rescene-ESM: an Earth system model built around a frozen AI weather model

Earth system models underpin climate projections, but their cost limits how many scenarios, ensemble members and impact pathways can be explored. Machine-learning weather models forecast as skillfully as physics-based models at a fraction of the cost, yet coupled to an ocean they have produced weak El Nino variability...

Minjong Cheon, Kaoru Kakinuma · 0 citations
Preprint Nov 2026

Sonny-ENS: demystifying machine-learning ensemble weather forecasting

Every weather forecast is uncertain, and decisions from flood warnings to energy trading depend on how well that uncertainty is quantified. Machine-learning (ML) ensembles now quantify it better than the best physics-based ensemble, yet two things about them remain opaque: whether their skill requires hundreds to thous...

Minjong Cheon · 0 citations
#machine learning Preprint Oct 2026

KNOU-Flood: Advancing global streamflow forecasting with lead-aware probabilistic machine learning

Global streamflow forecasting supports flood preparedness, yet data-driven models trained on reanalysis lose skill when driven by operational forecasts, increasingly so with lead time. AIFL addresses this shift with a two-stage transfer-learning recipe and a deterministic LSTM, but it feeds one forecast lead time into...

Minjong Cheon · 0 citations
#machine learning Preprint Oct 2026

Low-Rank Kolmogorov-Arnold Generator Flows for Interpretable Operator Learning

Neural operators that learn physical laws from data should generalize beyond their training distribution and expose the learned law in closed form. The Kolmogorov-Arnold neural operator achieves both for position-dependent dynamics by learning a dense pseudo-differential symbol over all positions and frequencies, at a...

Minjong Cheon · 0 citations
Preprint Jul 2026

Rescene: band-limited stochastic forcing turns a frozen neural weather operator into a climate emulator

Rescene is presented, a 0.4 M-parameter wrapper around a frozen 1.5 degree, 6-hourly vision-transformer operator developed using ERA5 reanalysis data and comprising a deterministic"slow clock"(0.33 M) that blends the forecast toward a lead-aware day-of-year climatology and a generative head (0.06 M) that adds a spectra...

Minjong Cheon · 0 citations

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