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You-Ran Sun

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#artificial intelligence Preprint Sep 2026

Scoring the Wrong Question: Readout Failures in Constrained-Option Evaluation

Constrained-option scoring reads a model's probabilities for a fixed set of permitted answers, so it returns a score even when the model is about to write something else. We study a prompt that quotes a multiple-choice item, ending in the item's own answer instruction, and asks for a forecast of whether a reader model...

Jia-Xuan Guo, Ke-Jia Zhang, Shuo Xin et al. · 0 citations
#machine learning Preprint Aug 2026

Staged Depth Training: A Representation Curriculum for PINNs

Staged Depth Training (SDT), which trains a shallow prefix under a temporary physics-informed head, discards the head, and freezes the learned prefix while adding depth, supports representation curriculum as a promising training strategy for improving PINNs while preserving the deployed architecture and inference cost.

Ke-Jia Zhang, You-Ran Sun, Hai-Zhao Yang · 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

Automatic Symbolic Regression (AutoSR), a fully automated system that instantiates Research-Space Symbolic Regression by searching persistent scientific investigations by searching persistent scientific investigations rather than isolated equations, is introduced.

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

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