most citedREINFORCE++: Stabilizing Critic-Free Policy Optimization with Global Advantage Normalization

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cs.LG2025

Rethinking KL Regularization in RLHF: From Value Estimation to Gradient Optimization

Kezhao Liu, Jason Klein Liu, Mingtao Chen +1

Reinforcement Learning from Human Feedback (RLHF) leverages a Kullback-Leibler (KL) divergence loss to stabilize training and prevent overfitting. However, in methods such as GRPO,…

cs.LG2025

LeetCodeDataset: A Temporal Dataset for Robust Evaluation and Efficient Training of Code LLMs

Yunhui Xia, Wei Shen, Yan Wang +5

We introduce LeetCodeDataset, a high-quality benchmark for evaluating and training code-generation models, addressing two key challenges in LLM research: the lack of reasoning-focu…