MR-COGraphs: Communication-Efficient Multi-Robot Open-Vocabulary Mapping System via 3D Scene Graphs. - Qiuyi Gu; Zhaocheng Ye; Jincheng Yu; Jiahao Tang; Tinghao Yi; Yuhan Dong; Jian Wang 030; Jinqiang Cui; Xinlei Chen; Yu Wang 002 (IEEE Robotics Autom. Lett., 2025)