- Cognitive and physical modeling of crowds - Crowds are pervasive and typically begin as a heterogeneous set of individuals. However, even a relatively undifferentiated heterogeneous set of individuals will rapidly form a cohesive unit and perceive themselves as part of the larger group when faced with an external threat. It is important to understand the factors that drive the behavior of such crowds from a physical as well as psychological perspective. This talk presents research in the area of crowd modeling, and in particular a real-time agent-based approach to modeling crowd behavior that is based on complementary psychological and engineering principles. The cognitive model utilizes a closed loop feedback system that uses stimuli as a means to affect future cognitive state; current cognitive state affects actions which in turn affect the agent as well as surrounding agents in the environment. A physical model is responsible for implementing actions. The presentation will include results from using an enhanced social forces model for implementing movement actions driven by different cognitive levels. Future research and plans will be discussed. --- Speaker bio. Yiannis Papelis is an Associate research Professor at Virginia Modeling Analysis and Simulation Center. Dr. Papelis has over 18 years experience in modeling and simulation, including immersive person-in-the-loop driving and flight simulation. His research interests include virtual environment representation and simulation and agent-based modeling.