Angles Don’t Lie: Unlocking Training‑Efficient RL Through the Model’s Own Signals - Wang, Qinsi; Ke, Jinghan; Ye, Hancheng; Lin, Yueqian; Fu, Yuzhe; Zhang, Jianyi; Keutzer, Kurt; Xu, Chenfeng; Chen, Yiran (Advances in Neural Information Processing Systems, 2025)