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Chu-Gang Yi

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#machine learning Preprint Sep 2026

Evaluating Cross-region Generalization for Wavelet-Diffusion Precipitation Downscaling

Diffusion models have shown strong potential for kilometer-scale precipitation downscaling, but their performance in geographically unseen regions and event regimes remains insufficiently understood. Building on the wavelet diffusion model (WDM) framework, this study evaluates cross-region and cross-event generalizatio...

Wei-Kang Qian, Yi-Xin Wen, Chu-Gang Yi et al. · 0 citations
Review Aug 2026

AgonAlpha: Autonomous Alpha Discovery via Prompt Economy and Scalable Agentic Search

To the knowledge, AgonAlpha is the first alpha-mining system to combine verified artifact search, a fresh-context adversarial reviewer with re-execution and veto authority, and pending-aware parallel budget allocation, together with a complete public evidence trail.

Wei-Chen Ye, You-Ran Sun, Xingyu Ren et al. · 0 citations
Review Aug 2026

AutoSR: Automatic Symbolic Regression by Searching Research States

We introduce Automatic Symbolic Regression (AutoSR), a fully automated system that instantiates Research-Space Symbolic Regression by searching persistent scientific investigations rather than isolated equations. Finite, noisy data often yield numerically competitive expressions that imply very different behavior outsi...

Ke-Jia Zhang, You-Ran Sun, Xinyu Ren et al. · 0 citations

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