Non-linear relationships between the built environment and walking to school: Applying extreme gradient boosting method
LIU Jixiang, XIAO Longzhu, ZHOU Jiangping, GUO Yuanyuan, YANG Linchuan
PROGRESS IN GEOGRAPHY . 2022, (2): 251 -263 .  DOI: 10.18306/dlkxjz.2022.02.006