Adaptive Range Coding - Tech Report Available

[Bruce E Rosen]

    REPORT AVAILABLE ON ADAPTIVE RANGE CODING

At the request of a few people at NIPS, I placed in the connectionists archive
the postscript version of my report describing adaptive range coding.
Below are the abstract and instructions on ftp retrieval.

I would very much welcome any discussion of this subject.  If you want, send 
email to me and I can summarize later for the net.

Thanks
Bruce

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Report DMI-90-4, UCLA Distributed Machine Intelligence Laboratory, January 1991

      		Adaptive Range Coding

			Abstract

This paper examines a class of neuron based learning systems 
for dynamic control that rely on adaptive range coding of sensor 
inputs.  Sensors are assumed to provide binary coded range 
vectors that coarsely describe the system state.  These vectors 
are input to neuron-like processing elements.  Output decisions 
generated by these "neurons" in turn affect the system state, 
subsequently producing new inputs.  Reinforcement signals from 
the environment are received at various intervals and evaluated.  
The neural weights as well as the range boundaries determining 
the output decisions are then altered with the goal of maximizing 
future reinforcement from the environment.  Preliminary experiments 
show the promise of adapting "neural receptive fields" when 
learning dynamical control.  The observed performance with this 
method exceeds that of earlier approaches.


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To obtain copies of the postscript file, please use Jordan Pollack's service:

Example:
unix> ftp cheops.cis.ohio-state.edu          # (or ftp 128.146.8.62)
Name (cheops.cis.ohio-state.edu:): anonymous
Password (cheops.cis.ohio-state.edu:anonymous): <ret>
ftp> cd pub/neuroprose
ftp> binary
ftp> get
(remote-file) rosen.adaptrange.ps.Z
(local-file) rosen.adaptrange.ps.Z
ftp> quit
unix> uncompress rosen.adaptrange.ps
unix> lpr -P(your_local_postscript_printer) rosen.adaptrange.ps

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If you have any difficulties with the above, please send e-mail to
rosen at cs.ucla.edu.   DO NOT "reply" to this message, please.