Risk and reliability analysis for maritime autonomous surface ship: A bibliometric review of literature from 2015 to 2022

•The knowledge structure of MASS’s risk and reliability analysis since 2015 is revealed.•A multi-aspects scientometric analysis model is constructed.•The hot research topics are discussed, including mechanical reliability and maintenance, software failure, hazard assessment, collision avoidance, communication, and human element.•The current research gaps are identified, and future research directions are proposed from the above five aspects.