CHAPTER SIXTEEN · INTERVIEW WITH GEORGIOS YANNAKAKIS Georgios Yannakakis is the chair of the newly-formed IEEE (Institute for Electrical and Electronics Engineers) task force on player satisfaction modeling. His current research interest lies in the investigation of intelli- gent mechanisms and cognitive models for optimizing player satisfaction within human-machine interactive systems (for example, computer and augmented-real- ity games). More specifically, he investigates the cor- relation between the user's perceived satisfaction from play, player models of different levels of human response (cognitive, physiological, emotional) and adaptive online learning. The IEEE task force on player satisfaction modeling (PSM) is a community of aca- demics and game developers interested in heterogeneous approaches for capturing and optimizing player satisfaction in human-computer interactive systems. Games, a prime example of such systems, constitute the main application test-bed for the approaches investigated by the members of the task force. Georgios, what exactly is this PSM task force and why might it be valuable to game developers?