1 Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100190, China; 2 Department of Computer Science, University of Alberta, Edmonton, AB T6G 2R3, Canada; 3 Department of Mathematics, Shanghai University, Shanghai 200444, China; 4 College of Computer Science and Technology, Zhengjiang University, Houzhou 310027, China
Xiao-Dong Hu, Guo-Hui Lin, Li-Ying Kang, Guo-Chuan Zhang. Preface: Special Issue on Combinatorial Optimization[J]. Journal of the Operations Research Society of China, 2019, 7(3): 395-397.