Ruqiang Yan is a Professor and phd supervisor at Xi’an Jiaotong University, China. His main research interests include machine learning with emphasis on deep learning, transfer learning and their applications, data analytics, multi-domain signal processing, non-linear time-series analysis, structural health monitoring, and diagnosis and prognosis. He serves as the associate editor-in-chief in of IEEE Transactions on Instrumentation and Measurement. Dr. Yan has published over 10 Journal Papers related to transfer learning-based machine fault diagnosis and prognosis. He was the Principal Investigator of a project titled ? Transfer Learning Based Rotating Machine Fault Diagnosis and Remaining Useful Life Prediction?, sponsored by the National Natural Science Foundation of China