Blackboard Systems
Daniel D.
Corkill
Blackboard Technology Group, Inc.
Blackboard systems are not new technology.
The first blackboard system, the Hearsay-II speech
understanding system [1], was developed nearly twenty years ago.
While the basic features...
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Blackboard Systems
Daniel D.
Corkill
Blackboard Technology Group, Inc.
Blackboard systems are not new technology.
The first blackboard system, the Hearsay-II speech
understanding system [1], was developed nearly twenty years ago.
While the basic features of
Hearsay-II remain in today’s blackboard systems, numerous advances and enhancements have
been made as a result of experience gained in using blackboard systems in widely varying
application areas.
Unlike most AI problem-solving techniques that implement formal models, the blackboard
approach was designed as a means for dealing with ill-defined, complex applications.
Unconstrained by formal requirements, researchers and developers have had considerable flexibility
in inventing and applying advanced techniques to blackboard architectures.
However, the lack
of formal specifications has also contributed to confusion about blackboard systems and their
proper place in the AI problem-solving toolkit.
This article describes the characte
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