AI Research

AI & ML Research Papers

A comprehensive index of artificial intelligence and machine-learning research with AI-generated summaries, citation metrics, and direct links to papers and code.

All Papers

2 papers

PreprintarXiv.org2025

Geometric-Mean Policy Optimization

Yuzhong Zhao, Yue Liu, Junpeng Liu, et al.

GMPO improves GRPO stability by replacing arithmetic mean with geometric mean of token rewards, reducing outlier sensitivity and boosting reasoning performance.

95Jul 28, 2025Large Language ModelsReasoning

arXiv

Preprint2023

Reward rAnked FineTuning (RAFT)

Unknown

RAFT iteratively fine-tunes generative models on top-ranked samples to align them with a reward function, improving stability and efficiency over RLHF.

0Apr 1, 2023Fine TuningDiffusion Models