MemAgent: Reshaping Long-Context LLM with Multi-Conv RL-based Memory Agent - Yu, Hongli; Chen, Tinghong; Feng, Jiangtao; Chen, Jiangjie; Dai, Weinan; Yu, Qiying; Zhang, Ya-Qin; Ma, Wei-Ying; Liu, Jingjing; Wang, Mingxuan; Zhou, Hao (International Conference on Learning Representations, 2026)