AI and Data Talk Series- Dr Hak Keung Lam

Explainable Control Systems: From Interpretable Fuzzy Models to Explainable Control Frameworks Abstract Modern control systems increasingly rely on mathematically sophisticated or data-driven controllers whose behaviour can be difficult for humans to understand. While fuzzy systems provide interpretable rule-based structures, interpretability alone does not fully address the need to explain controller decisions, behavioural mechanisms, and operating patterns in a systematic way. This talk reviews the development from interpretable fuzzy model-based control to broader explainable control frameworks. It highlights key advances in fuzzy control, including model-based analysis and membership-function-dependent methods, and discusses both the strengths and limitations of fuzzy logic for explainability. The talk then presents the concept of explainable control frameworks, with particular focus on the Explainable Control Framework (XCF), which integrates fuzzy model-agnostic explanation, explanation indicators, and language-based explanation interfaces to generate human-understandable accounts of controller behaviour. Finally, future research directions and open challenges in explainable control are discussed. Biography Hak-Keung Lam is a Reader in the Department of Engineering at King’s College London. His research focuses on control theory and intelligent systems, particularly fuzzy modelling, fuzzy-model-based control, neural-network-based control, and stability and robustness analysis. He is an IEEE Fellow for contributions to the analysis and design of fuzzy model-based control systems, and has been recognised as a Clarivate Highly Cited Researcher since 2018. He is the author or co-author of several books, including Stability Analysis of Fuzzy-Model-Based Control Systems, Polynomial Fuzzy Model Based Control Systems, and Interval Type-2 Fuzzy-Model-Based Systems. He has served and continues to serve in editorial roles for a number of international journals, including as Section Editor for the Journal of Engineering, Senior Editor for IEEE Access (Systems, Man, and Cybernetics Section), and Associate Editor for journals such as IEEE Transactions on Fuzzy Systems, IEEE Transactions on Circuits and Systems II: Express Briefs, Neurocomputing, Nonlinear Dynamics, the International Journal of Fuzzy Systems, and Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering. His full publication list is available at https://scholar.google.com/citations?....