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September 09, 2003

Movies Demonstrating Emotional Agent Architecture

Dr. Barry Silverman and his team at Ackoff Center for Advancement of Systems Approaches (ACASA) have just completed a series of movies demonstrating their emotional agent architecture, PMFserv, running in a 3D video game environment. The videos are available online (see below).

Dr. Silverman’s group has been researching and modeling the impact of stress and emotion upon rationality over the past several years. Their approach draws together facets of subjective expected utility theory, social decision conflict theory, somatic marker theory, stress and fatigue models, and cognitive complexity theory to create agents that make realistic decisions based on their physical and emotional state. For this demonstration, they embedded their PMFserv agents into characters in a video game environment designed to represent Mogadishu during American support of the UN’s Somalian relief mission of 1993. This agent modeling approach involves no scripting. Instead, each PMFserv agent can choose what behaviors satisfy their internal objectives (e.g., observe, flee, swarm, flock, attack, loot, blow themselves up, act as human shields, etc.). As the world around these agents evolves and as a US Ranger (controlled by the player) and his companions take actions in this world, one can observe how agent micro-decisions effect other agents and ripple across to macro-behaviors and new crowd equilibria. The player’s goal is to leave his/her Humvee, advance to the crash site, secure and destroy a helicopter, and return safely without making tactical errors that arouse the mobs and incur the wrath of the locals - Somalian male, female, and militia agents controlled by PMFserv agents.

The result of their work is summarized in six video clips just completed and viewable at the bottom of the page on the ACASA website. A further output of this effort is a toolset for studying complex adaptive systems behaviors where humans are involved.

Posted by ACASA on September 9, 2003 at 01:33 PM in ACASA News | Permalink

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