Spatial data and intelligence 4th international conference, SpatialDI 2023, Nanchang, China, April 13–15, 2023, proceedings - Meng, Xiaofeng 1964-; Li, Xiang; Xu, Jianqiu; Zhang, Xueying; Fang, Yuming; Zheng, Bolong; Li, Yafei (Lecture notes in computer science, 2023)