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- Path: sparky!uunet!rcwusr.bp.com!lakerb
- From: lakerb@rcwusr.bp.com
- Newsgroups: comp.theory.dynamic-sys
- Subject: Re: >>>Refs on chaos in neural activity ?
- Message-ID: <1992Dec25.200147.80@rcwusr>
- Date: 25 Dec 92 20:01:46 -0600
- References: <erwin.725225662@trwacs>
- Organization: BP Research, Cleveland, OH (USA)
- Lines: 59
-
- In article <erwin.725225662@trwacs>, erwin@trwacs.fp.trw.com (Harry Erwin) writes:
- > Our newsmaster (me) has been learning about batching the hard way. The
- > following is being reposted:
- >
- >>References: <H.eg.UEnwI&3EHKA@wpcst1.phys-chemie.uni-wuerzburg.dbp.de> <1992Dec21.182154.4670@magnus.acs.ohio-state.edu> <1992Dec23.110835.77@rcwusr>
- >>Date: Wed, 23 Dec 1992 20:23:15 GMT
- >
- > lakerb@rcwusr.bp.com writes:
- >
- >><OPINION MODE ON>
- >>It seems that the chaos-focussed researchers can't see the forest for the
- >>trees. The "chaos" that is enamoured for its inherent "beauty" may, in fact,
- >>be conveying a set of signals bearing important information for the control of
- >>some neural process. Decoding the "chaos" that bears the message is likely to
- >>be less than fruitful ... the key is the range of the variation in the
- >>information borne by the "chaos".
- >><OPINION MODE OFF>
- >
- >>Robin Lake
- >>BP Research
- >>lake@rcwcl1.dnet.bp.com
- >
- > The chaos seen in Freeman's work appears to be associated with an
- > accessible hyperbolic critical point that is used as a starting point for
- > rapid pattern recognition.
-
- At a critical point, any of a number of successive paths (trajectories,
- strategies) are equally feasible. In that "information" is the selection from
- a set of alternatives, does the pursuit of a successive path where any path is
- equally possible convey any information? If you are saying that Freeman
- hypothesizes a hyperbolic critical point and assumes that the system
- sensitivity at that point effects a pattern recognition, I'd be quite hesitant
- to accept a no-information-value-added path as conveying any information about
- the pattern presented. It may be that the representation of the underlying
- system is less than complete, neglecting to include the input representing the
- pattern(s).
-
- I'll think about this for a while.
-
- > Another potential application of chaos is in
- > controlling a significant, naturally dissipative process at minimum cost.
- > A third application of chaos is in creating intelligent but unpredictable
- > behavior. (A good fighter pilot is chaotic.) In yet another context, the
- > "best" approach to non-zero-sum games with information collection is
- > inherently chaotic (and hence difficult for purely stimulus/response
- > systems to generate). Chaos can also be exploited for secure communication
- > between members of a distributed community. Chaos also resists stylized
- > attacks better than any periodic process (since the response time
- > distribution has a continuous Fourier spectrum).
- >
-
- I'm willing to buy into the concept that a fractal dimension (or better yet, a
- CHANGE in a fractal dimension) can convey information. That this represents
- "intelligence" requires a leap of faith.
-
- Rob Lake
- BP Research
- lake@rcwcl1.dnet.bp.com
-
-