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Wen-Zhi Fang

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#machine learning Preprint Sep 2026

Theory of Scene: Breaking the Symmetry Trap in Multi-Agent LLM Coordination

Multi-agent systems built on large language models (LLMs) are largely homogeneous, as their agents behave alike even across distinct LLMs. We show that when such agents act concurrently without communication, they collide on targets they must split and diverge on targets they must take together, a double failure we ter...

Liang-Qi Yuan, Wen-Zhi Fang, Shi-Qiang Wang et al. · 0 citations
#artificial intelligence Preprint Sep 2026

Reasoning-Preserving Fine-Tuning of Post-RL LLMs with Null-Basis LoRA

Reinforcement learning (RL)-based post-training has become an effective approach for eliciting reasoning capabilities in large language models (LLMs). However, adapting post-RL models to new knowledge domains or behaviors through subsequent supervised fine-tuning (SFT) can severely overwrite these capabilities. Existin...

Wen-Zhi Fang, Nicholas Tzou, L. Valkov et al. · 0 citations

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