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About

Ing-Ray Chen is a leading researcher in the reliability and security of complex, dynamic systems, with a particular focus on mobile cyber-physical systems (MCPS) and trust management. His work addresses the critical challenge of ensuring system dependability when components—such as robots, vehicles, or human actors—must operate under uncertainty, failure, or attack. Chen pioneered the concept of "fuzzy-failure criterion," moving beyond binary success/failure models to more accurately assess reliability in contexts like robot path planning and automated manufacturing. His highly cited research on dynamic hierarchical trust management (over 40 citations) provides foundational methods for detecting misbehaving nodes in mobile groups, essential for military and emergency response operations. He has also made significant contributions to the survivability of MCPS, developing mathematical models to evaluate system resilience against intrusions and component failures. With a career spanning from early work on software reliability for AI programs to contemporary studies on cyber-physical security, Chen’s research has garnered substantial impact, with his most influential papers accumulating hundreds of citations. His work is instrumental for engineers and scientists designing robust, trustworthy autonomous systems in high-stakes environments.