School of Mechanical Science and Engineering Huazhong University of Science and Technology Wuhan 430074 China;
School of Mechanical Science and Engineering Huazhong University of Science and Technology Wuhan 430074 China;
School of Mechanical Science and Engineering Huazhong University of Science and Technology Wuhan 430074 China;
School of Mechanical Science and Engineering Huazhong University of Science and Technology Wuhan 430074 China;
School of Mechanical Science and Engineering Huazhong University of Science and Technology Wuhan 430074 China;
College of Life Science and Technology Huazhong University of Science and Technology Wuhan 430074 China;
metamodel; ensemble of metamodels; hybrid error measure; stochastic problem;