Collaborative Learning of On-Device Small Model and Cloud-Based Large Model: Advances and Future Directions. - Chaoyue Niu; Yucheng Ding; Junhui Lu; Zhengxiang Huang; Hang Zeng; Yutong Dai 005; Xuezhen Tu; Chengfei Lv; Fan Wu 006; Guihai Chen (CoRR, 2025)