Affiliation:
1. Department of Statisics University of Wisconsin‐Madison Madison WI 53706 USA
2. School of Mathematics and Statistics Xidian University Xi'an Shaanxi 710071 China
3. School of Management Northwestern Polytechnical University Xi'an Shaanxi 710072 China
Funder
National Science Foundation
Fundamental Research Funds for the Central Universities
National Social Science Fund of China
Wisconsin Alumni Research Foundation
Subject
Statistics, Probability and Uncertainty,Statistics and Probability