Author

Xin Guan

Southeast University

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#natural language process... May 2026

EvoRubric: Self-Evolving Rubric-Driven RL for Open-Ended Generation

EvoRubric is proposed, a co-evolutionary RL framework that combines criterion-validity feedback, response discrimination, and peer agreement to learn rubrics for open-ended generation and improves over matched static and external evolving-rubric baselines across five benchmarks in Medical, Writing, and Science.

Xin Guan, Xiaomeng Hu, Shen Huang et al. · arXiv.org · 15 citations · ⚡5

2026

EcoReason: A Graph-Guided Evolutionary and Negative-Aware Reinforcement Learning Framework for LLM Commonsense Reasoning

While large language models (LLMs) have achieved impressive gains in commonsense reasoning, they often fall into “associative shortcuts,” failing to distinguish correct answers from plausible but constraint-violating hard negatives. This reliance on semantic priors rather than specific situational constraints limits th...

Xin Guan, Jiu-Xin Cao, Biwei Cao et al. · IEEE Transactions on Audio,... · 0 citations