CrowdAgent: Multi-Agent Managed Multi-Source Annotation System. - Maosheng Qin; Renyu Zhu; Mingxuan Xia; Chenkai Chen; Zhen Zhu 007; Minmin Lin; Junbo Zhao 002; Lu Xu; Changjie Fan; Runze Wu 001; Haobo Wang 001 (CoRR, 2025)