1. Department of Automation, Tsinghua University, Beijing, China
2. Department of Automation, Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing, China
3. Guangdong Provincial Key Laboratory of Petrochemical Equipment Fault Diagnosis, Guangdong University of Petrochemical Technology, Maoming, China
4. College of Electrical Engineering and Automation, Shandong University of Science and Technology, Qingdao, China