Zengkun Liu is currently working toward the Ph.D. degree in Industrial Artificial Intelligence with the Mechanical Engineering Department of the University of Auckland, Auckland, New Zealand. He received the B.S. degree in Mechanical Engineering from Shandong University of Science and Technology, Qingdao, China, in 2015 and the M.S. degree in Mechanical Engineering University of Electronic Science and Technology of China, Chengdu, China, in 2018. His research aims to bring intelligent techniques to maintenance automation. His research interests include knowledge graph, natural language, and industrial AI.