cognitive science in virtual worlds
DESCRIPTION
TRANSCRIPT
COGNITIVE SCIENCE IN VIRTUAL WORLDS
Learning, memory, and cognition in virtual worlds
Designing learning for artificial agents: Transferring kinaesthetic learners’ procedural skills in virtual environments to embodied artificial intelligent agents
Research Focus
Synopsis
Human Memory Atkinson-Shiffrin model
A taxonomy of mammalian long-term memory systems (1980 – present)
Squire, L.R. Memory and Brain, New York: Oxford University Press, 1987.
Going to the Pizza Shop
History of implicit memory
Descartes (1649), Maine de Biran (1804)
Implicit memory is based on implicit learning. It is an unconscious, non intentional form of memory that is expressed through performance rather than recollection
In our every day language we refer to explicit memory not implicit
Motor Skills Learning
Learning how to ride a bike
Where is it?
Cognitive Architecture Definition
A Cognitive Architecture specifies the underlying infrastructure of an intelligent systems
The short-term and long term memory that store content about the agent’s belief, goals and knowledge
The representation and organization of structures that are embedded in these memories
The functional process that operate on these structures (performance and learning mechanisms)
A programming language that lets one construct knowledge-based systems which embody the architecture’s assumptions.
Cognitive Architecture Taxonomy
Symbolic Architecture
Symbolic AI: the hypothesis that
all intelligent thoughts are
symbolic manipulation.
Symbolic Processor
Emergent Architecture
Based on Subsymbolic artificial intelligence
Used as a metaphor of the human brain, where cognitive
activities of the brain are interpreted by
theoretical concepts that have their origin
in neuroscience
Subsymbolic network
Hybrid Architecture
Comparison of Cognitive architectures
Key Design Properties for Cognitive Architectures
Soar (Symbolic)
Investigating transfer learning in the urban combat testbed.
Integrating soar with a real-time strategy game
Efficiently implementing episodic memory.
Interface Application
Memory structure in Soar
OpenCog Prime (Hybrid)
Intelligent virtual agents for MMOGs, serious games and training simulations.
Some natural language applications
Artificial General Intelligence (AGI)
Interface Application
OpenCog Prime Memory
Paradigm for Implicit Learning
Artificial Grammar LearningSerial Reaction TimeDynamic System Control
Sequence LearningThe Serial Reaction Time Task
The task requires learning a sequence of motor responses to visual clues
The dependent measure is reaction time
Implicit Learning and Motor Learning
Why Cognitive Science in Virtual Worlds?
Human interacting via the virtual world and run the experiment with the avatar pushing the buttons, adding an extra Layer?
Too complex to design such a test in a Virtual World (Kinematics? Latencies?)
What hypothesis? Run a comparative study?
Cognitive relationship between a human user and his or her on-line representation, Embodiment
Gardner Multiple Intelligence theory (1993)
Which World?
How to bridge link from experimental results to an AI agent?
?