Count Counts: Motivating Exploration in LLM Reasoning with Count-based Intrinsic Rewards - Zhang, Xuan; Li, Ruixiao; Zhou, Zhijian; Li, Long; Qin, Yulei; Li, Ke; Sun, Xing; Tan, Xiaoyu; Qu, Chao; Qi, Yuan (International Conference on Learning Representations, 2026)