Uniform Access to Knowledge
Since all knowledge in PRODIGY is
represented uniformly, all the
learning modules can have access to the
knowledge. This leads to
a
glass box
representation in which all knowledge is explicitly made
available to every process in the system. This is contrast to
black box
representations in which learned knowledge is not available for inspection
or modification. The glass box approach allows complete knowledge of what
preconditions can lead to what actions but forces an immediate interpretation
-- there is no temporal extent. Thus, the operator actions require a
complete and
consistent representation of the
world.
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