You Only Communicate Once: One-shot Federated Low-Rank Adaptation of MLLM - Xu, Binqian; Mei, Haiyang; Bai, Zechen; Gong, Jinjin; Yan, Rui; Xie, Guosen; Yao, Yazhou; Fernando, Basura; Shu, Xiangbo (Advances in Neural Information Processing Systems, 2025)