@article{201912.0015,
	doi = {10.20944/preprints201912.0015.v1},
	url = {https://doi.org/10.20944/preprints201912.0015.v1},
	year = 2019,
	month = {December},
	publisher = {Preprints},
	author = {Jun Xia and Pei-Jie Chen and Ji-Hong Wang and Jie Zhuang and Zhen-Bo Cao and Qiang Zhang},
	title = {Evaluation on Sports Facility Resource in Primary School Using a Combined Approach of Unsupervised Machine Learning: a Case Study of Shanghai, China},
	journal = {Preprints}
}