About the Authors
- Xiaohang Zhang
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* E-mail: zhangxiaohang@bupt.edu.cn
Affiliation School of Economics and Management, Beijing University of Posts and Telecommunications, Beijing, China
- Zecong Zhang
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Affiliation School of Economics and Management, Beijing University of Posts and Telecommunications, Beijing, China
- Han Zhao
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Affiliation School of Economics and Management, Beijing University of Posts and Telecommunications, Beijing, China
- Qi Wang
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Affiliation School of Economics and Management, Beijing University of Posts and Telecommunications, Beijing, China
- Ji Zhu
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Affiliation Department of Statistics, University of Michigan, Ann Arbor, Michigan, United States of America
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: XZ QW JZ. Performed the experiments: XZ ZZ HZ. Analyzed the data: XZ HZ ZZ. Contributed reagents/materials/analysis tools: XZ ZZ HZ. Wrote the paper: XZ QW JZ.