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About

Yasuo Narukawa is a leading figure in the fields of computational intelligence, information fusion, and decision modeling. His most significant contribution is the seminal book *Modeling Decisions: Information Fusion and Aggregation Operators* (2007), which has garnered over 515 citations and serves as a cornerstone text for researchers working on aggregation operators and multi-criteria decision-making. Beyond theoretical frameworks, Narukawa has made impactful strides in robotics, particularly in the study of passive-dynamic walking. His pioneering work on biped locomotion demonstrated that a robot with a torso could achieve efficient, natural walking on level ground by coordinating torso and swing-leg control—a breakthrough that balances mechanical simplicity with active control. He further advanced the field by developing a simple 3D straight-legged passive walker with flat feet and ankle springs, challenging conventional designs that relied on arc-shaped feet. Narukawa’s interdisciplinary research bridges abstract decision theory and tangible robotic systems, offering profound insights into how intelligent systems can model, fuse, and act upon complex information. His work continues to inspire students and researchers in AI, robotics, and operations research.