Re: FYI:Kauffman NK random boolean network dynamics (fwd)
N.BOSTROM@lse.ac.uk
Fri, 27 Dec 96 18:39:33 GMT
You should find something about the dynamics of boolean
networks in:
Models of Neural Networks I and II, edt. Domany, E., van
Hemmen, J. L. & Schulten K. (1994) Springer-Verlag.
(part II also contains some interesting results about
synchronization as a binding mechanism). A big challenge now
seems to be to derive some properties for networks with
asymmetric connections (like the brain), but that is much
more difficult than the symmetric case, since methods from
thermodynamics are not directly applicable here.
BTW, Eugene, I heard about a suggestion made a number of
years ago, that perhaps dreaming is a manifestation of
antihebbian learning. The system is shaked into a random
state and then allowed to settle into an attractor. Then an
antihebbian learning rule is applied. When this process is
repeated, it tends to eliminate spurious attractors, thereby
increasing the storage capacity of the network from 0.138N
to about .78N . Do you know whether this beautiful idea has
been followed up?
Nicholas Bostrom n.bostrom@lse.ac.uk