collaborators

5 papers

cs.LG2026

WDL-OPD: Weak-Driven On-Policy Distillation via Mixture-Constrained Co-Training

Zehao Chen, Gongxun Li, Tianxiang Ai +9

On-policy distillation (OPD) aligns a student with a teacher on trajectories sampled from the student itself, reducing the train-test state mismatch of offline distillation. The sa…

cs.AI2026

Weak-Driven Learning: How Weak Agents make Strong Agents Stronger

Zehao Chen, Gongxun Li, Tianxiang Ai +9

As post-training optimization becomes central to improving large language models, we observe a persistent saturation bottleneck: once models grow highly confident, further training…

cs.AI2026

Does Your Reasoning Model Implicitly Know When to Stop Thinking?

Zixuan Huang, Xin Xia, Yuxi Ren +11

Recent advancements in large reasoning models (LRMs) have greatly improved their capabilities on complex reasoning tasks through Long Chains of Thought (CoTs). However, this approa…

cs.IR2026

LASAR: Latent Adaptive Semantic Aligned Reasoning for Generative Recommendation

Yiwen Chen, Fuwei Zhang, Zehao Chen +8

Large Language Models (LLMs) have demonstrated powerful reasoning capabilities through Chain-of-Thought (CoT) in various tasks, yet the inefficiency of token-by-token generation hi…

cs.LG2025

LLMBoost: Make Large Language Models Stronger with Boosting

Zehao Chen, Tianxiang Ai, Yifei Li +11

Ensemble learning of LLMs has emerged as a promising alternative to enhance performance, but existing approaches typically treat models as black boxes, combining the inputs or fina…