Cognitive Architectures and Virtual Intelligent Agents

 

Cognitive Architectures and Virtual Intelligent Agents

SAGE 2704

January 26, 2010 2:30 PM - 2:30 PM

ABSTRACT: In this talk I review the notion of cognitive architectures as unified theories , cognition and the role of such frameworks in building virtual agents that exhibit intelligent behavior. I present one such architecture, Icarus, that combines ideas from a number, traditions. Icarus shares some core assumptions with older theories, but it also makes distinctive claims about the hierarchical organization of memory, the difference between concepts and skills, and relationships among inference, execution, problem solving and learning. In addition to incorporating many ideas from cognitive psychology, Icarus also borrows from work on logic and reactive control. The architecture also differs from its predecessors in its strong focus on embodied behavior, which in tum makes it a natural candidate for constructing virtual agents that operate in synthetic environments. I report our experiences with Icarus agenls in a number of such settings that include a first-person shooter task, an urban driving simulator, and a multi-agent foolball game. In each case, I describe the challenges we encountered and the architectural changes we adopted in response. In closing, I outline plans for future work on computational models of social cognition. This talk describes joint work with Dongkyu Choi, Tolga Konik, Nan li, Daniel Shapiro, and David Stracuuzi.

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