TY - GENERIC DO - 10.20944/preprints201912.0015.v1 UR - http://dx.doi.org/10.20944/preprints201912.0015.v1 TI - Evaluation on Sports Facility Resource in Primary School Using a Combined Approach of Unsupervised Machine Learning: a Case Study of Shanghai, China T2 - Preprints AU - Xia, Jun AU - Chen, Pei-Jie AU - Wang, Ji-Hong AU - Zhuang, Jie AU - Cao, Zhen-Bo AU - Zhang, Qiang PY - 2019 DA - 2019/12/03 PB - Preprints