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An Overview of the RALPH-MEA Architecture

 
Philosophy


The RALPH-MEA (Rational Agents with Limeted Performance
Hardware-Multiple Execution Architectures) agent architecture was
designed to handle decision-making in complex, real-time domains. It
used decision theory, specifically
as presented by Russell in his work. This theory is further expanded
by the use of multiple execution architectures, each one
characterized by the different knowledge type that they use. The
architectue also implements metalevel control of planning as
explainded in the architectural details document.

The actual implementation of this architecture consists of a simulated
submarine that tries to do gather data about its environment while
avoiding the enemy radar.




Characteristics






Sources and References
 
Russel. S.J., Wefald, E.Decision-Theoretic
Control of Reasoning: General Theory and an Application to
Game-Playing

Ogasaware, G.H., RALPH-MEA:A
real-time decision-theoretic architecture, PhD thesis. UC Berkeley.

Ogasawara, G.H., Russell, S.J., "Real-time, decision-theoretic control
of an autonomous underwater vehicle", SIGART Bulletin 2, 1991.

Ogasawara, G.H., "A distributed, decision-theoretic control system for
a mobile rohot", SIGART Bulletin 2, 1991, pp. 140-5.

Russell, S.J., A decision-theoretic approach to robotic control
systems", SIGART Bulletin 2, 1991, pp. 146-50.

Russell. S.J. Wefald, E. Do The Right Thing, MIT Press, 1991