Hello all,
Looks like I'm a bit late on this, ..., althought a precursor ?...
Please Have a look at FuzzyDemo on the MI List FTP site for an implementation of Fuzzy
logic in MI ...
Thanks for any feedback.
eric Maranne
Consultant
[EMAIL PROTECTED]
-----Message d'origine-----
De: Rich Shepard [SMTP:[EMAIL PROTECTED]]
Date: jeudi 21 janvier 1999 19:02
A: [EMAIL PROTECTED]
Objet: MI Re: Thanks for all the help
On Sat, 16 Jan 1999, Mark Brosso wrote:
> Before you go, perhaps you could comment on the application of fuzzy logic
> from within MapInfo. Is it doable? What are the potential drawbacks?
> Should I develop the application within a different GIS. Is fuzzy logic
> appropriate for busienss applications. Again, within MapInfo is it
> approprait? Feasible? Are there better GIS applications? Thanks in
> advance for your feedback and experience...
Mark,
We are at the earliest stages of developing the fuzzy system model (FSM).
(As an interesting aside, the reasons we are proceeding slowly are that the
agencies -- e.g., BLM, EPA, Forest Service -- have no idea what an
ecological risk assessment is supposed to do, what output it should have,
nor how they would use the output to support decisions. That means that we
have to develop all these pieces, too.) However, ...
I suggest that rather than trying to incorporate a FSM within MapInfo, the
gis could be used to assign values to linguistic variables such as "near"
and "many", and these values would then become input to the FSM. On the
other hand, fuzzy logic is the ideal way to implment many spatial analyses
within a gis. I don't think that I'd want to do it with MapBasic, but a C/C++
as a separate process forked from within MapInfo would run quickly.
More examples exist in the application of fuzzy logic to business than to
environmental science. Among the applications of which I am aware are
insurance underwriting, transportation scheduling, credit analyses and M&A
studies. When combined with spatial relations, these types of models should
provide upper management with a solid foundation for decision-making.
Hope that this helps!
Rich
Dr. Richard B. Shepard, President
Applied Ecosystem Services, Inc.
2404 SW 22nd Street
Troutdale, OR 97060-1247 U.S.A.
+ 1 503-667-4517 (voice) | + 1 503-667-8863 (fax)
[EMAIL PROTECTED]
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