tech report available

[Dave.Touretzky@B.GP.CS.CMU.EDU]

		   Controlling Search Dynamics
		 by Manipulating Energy Landscapes

		        David S. Touretzky
 
			  CMU-CS-89-113
			  December, 1989

		    School of Computer Science
		    Carnegie Mellon University
		    Pittsburgh, PA  15213-3890


Touretzky and Hinton's DCPS (Distributed Connectionist Production System)
is a neural network with complex dynamical properties.  Visualization of
the energy landscapes of some of its component modules leads to a better
intuitive understanding of the model.  Three visualization techniques are
used in this paper.  Analysis of the way energy landscapes change as
modules interact during an annealing search suggests ways in which the
search dynamics can be controlled, thereby improving the model's
performance on difficult match cases.

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This report is available free by writing the School of Computer Science at
the address above, or by sending electronic mail to Ms. Catherine Copetas.
Her email address is copetas+ at cs.cmu.edu.  Be sure to ask for technical
report number CMU-CS-89-113.