Architectures that Maintain a Symbolic World Model
Symbolic world models are required by architectures which attempt
to understand their environment and predict the effects of
their actions. Allen Newell argues that symbol systems are necessary bases of
cognitive architectures that approximate knowledge systems. Symbolic models typically take the form of global
databases which maintain a list of objects, their properties
and locations. The disadvantage of utilizing world models is
that a sufficiently complex and dynamic environment can never
be accurately modelled. Brooks
avoids this difficulty by not requiring a world model to
perform its tasks.
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