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From: portegys%Ucb-Vax@ihuxv.UUCP
Newsgroups: net.ai
Subject: Request for PURR-PUSS reference
Message-ID: <538@sri-arpa.UUCP>
Date: Wed, 4-Apr-84 21:37:21 EST
Article-I.D.: sri-arpa.538
Posted: Wed Apr  4 21:37:21 1984
Date-Received: Tue, 10-Apr-84 07:32:58 EST
Lines: 21

Recently someone mentioned a system called PURR-PUSS (I think it was Ken
Laws), in connection with determining the configuration of a finite
state machine based on observation of input-output relationships.  I'm
doing some work related to that, and would appreciate references to
PURR-PUSS.

     Tom Portegys, Bell Labs Naperville, Ill., ihuxv!portegys

[I ran across PURR-PUSS in J.H. Andreae's "PURR-PUSS: Purposeful
Unprimed Rewardable Robot", Electrical Engineering Report No. 24,
Sept. 1974, Man-Machine Studies, Progress Report UC-DSE/4(1974) to
the Defence Scientific Establishment, Editor J.H. Andreae, Dept.
of EE, Univ. of Canterbury Christchurch, New Zealand, pp. 100-150.
This article describes several applications of the PUSS (Predictor
Using Slide and Strings) learning program, including the identification
of a repetition pattern in a seemingly random H/T sequence.  (The
pattern was two random choices followed by a repeat of the second choice.)
References are given to earlier reports in this series.
I also have copies of reports 26, 27, and 28 (Sep. 1975);  each has
at least one article on the use of PUSS learning/predicting modules
for the reasoning component in some application.  -- KIL]