May 2011
Intermediate to advanced
343 pages
10h 8m
English
Content preview from Biological Computation
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208 ◾ Biological Computation
c. Repeat the tests where every digit is memorized using several
similar but not identical input patterns (create the patterns rst).
Does this improve the learning?
d. Repeat the experiments by representing the digits using 1 and –1
(rather than 1 and 0). Does this improve the success rate or the
convergence rate? Why?
e. e network can fail in one of two ways: it can converge to a digit
that was learned but that is not the correct digit, or it can con-
verge to a state that was not part of the input samples (a spurious
attractor). Count the number of errors from each type, and print
out a few samples of states that are not part of the input samples.
Try to classify those patterns.
4.10.4 Self-Orga ...
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