Authors

Yufei Guo

Publications 2

Preprint Open access

EvoGen-Harness: Learning Where and How to Evolve Image-Generation Harnesses

Jiabin Luo, Yinan Liu, Chunlei Meng et al. · 2026

Modern text-to-image (T2I) systems can be improved without modifying generator parameters by adapting the external system around frozen generators. However, existing approaches typically optimize a predefined dimension, such as prompts, routing, or workflows, restricting the space in which generation failures can be co …

Preprint Open access

RESCUE: Repairing Language Model Errors to Sparse Circuits via Reinforcement Learning

Chuanpu Liu, Miao Yu, Yikai Cai et al. · 2026

Large language models (LLMs) exhibit strong general capabilities that mechanistic interpretability has attributed to sparse computational circuits. However, existing circuit studies emphasize preserving functionality or explaining safety, leaving the mechanisms underlying failures across a broader range of tasks largel …

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