KVCOMM: Online Cross-context KV-cache Communication for Efficient LLM-based Multi-agent Systems - Ye, Hancheng; Gao, Zhengqi; Ma, Mingyuan; Wang, Qinsi; Fu, Yuzhe; Chung, Ming-Yu; Lin, Yueqian; Liu, Zhijian; Zhang, Jianyi; Zhuo, Danyang; Chen, Yiran (Advances in Neural Information Processing Systems, 2025)