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Ah, interesting - I'll have to check this out. I was thinking in terms
of chaos theory, as chaotic systems are "mathematically deterministic
but nearly impossible to predict" [1]. Thanks for the clarification.
Joe
[1] http://www.mathjmendl.org/chaos/#intro
"Roger L. Costello" wrote:
>
> Hi Joe,
>
> No, I really did mean to say non-deterministic. (My understanding is) that
> complex systems may appear non-deterministic, but there are underlying
> patterns that once recognized will allow you to predict the behavior. Until
> you understand those underlying patterns it appears non-deterministic.
> /Roger
>
> Chiusano Joseph wrote:
>
> > <Quote>
> > A complex system is one that has lots of parts, which interact,
> > and the system behaves in a seemingly non-deterministic fashion
> > </Quote>
> >
> > Roger, I think you meant to say seemingly *deterministic* fashion...
> >
> > Kind Regards,
> > Joe Chiusano
> > Booz | Allen | Hamilton
> >
> > "Roger L. Costello" wrote:
> > >
> > > Hi Mike,
> > >
> > > Mike Champion wrote:
> > >
> > > > But how about the messy real world most of us must
> > > > operate in, where there is an intent to deceive
> > > > (spammers, virus writers, software companies with
> > > > patents on common sense, politicians starting wars [or
> > > > questioning the definition of "is"], ad nauseum)? How
> > > > about in pop culture contexts where meanings of words
> > > > are changed literally for the fun of it?
> > >
> > > You make excellent points. I will offer two comments:
> > >
> > > 1. In the RDF Primer are several examples of companies that are
> > > currently using RDFS ontologies. Shelley Power's book on RDF also has
> > > examples.
> > >
> > > 2. Recently I have been doing some reading on "complex systems". This
> > > is a new, highly interdisciplinary science that has its roots in Chaos
> > > Theory. A complex system is one that has lots of parts, which interact,
> > > and the system behaves in a seemingly non-deterministic fashion. A
> > > example of a complex system is the stock market - there are many parts,
> > > and one part (I think they call it an affector) can impact remote
> > > parts. The complex systems people distinguish between a complex system
> > > and a complicated system. An automobile engine is an example of a
> > > complicated system - if you understand all its parts then you can
> > > predict exactly how it will behave. This is not a complex system. A
> > > colleague defined a complex system as "a system that has dynamic
> > > complicatedness".
> > >
> > > As I read your words it occurred to me that what you are really talking
> > > about is a complex system. As I learn more about complex systems, I
> > > intend to see how their techniques can be used to solve the issues that
> > > you raise. This is exciting! It might be fun to create a list to
> > > discuss semantics and data interoperability as a complex system? I am
> > > just starting to learn about complex systems. Does anyone have a lot of
> > > experience with it? /Roger
> > >
> > > P.S. The Santa Fe Institute does work on complex systems. Also, as does
> > > the New England Complex Systems Institute (http://www.necsi.org)
> > >
> > > P.S. A nice pop-science book on complex systems is called Complexity by
> > > Waldrup
> > >
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