February 2005
Beginner to intermediate
540 pages
14h 9m
English
Content preview from Fuzzy Modeling and Genetic Algorithms for Data Mining and Exploration
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8.7 Technical Implementation
■
323
Breed
new
population
Fuzzy set configuration initiator
Fuzzy
model
Goodness
of fit
Continue?
CIX trend
generator
Assessment
Outcome
Trend
analysis
expert system
1.0
0 x
μ(x)
CIXCIX
Trend
rules
Data
history
Execution periods
1
0
Slope
Rule 5
Rule 3
Rule 1
Rule 4
Rule 2
3
Genetic
optimizer
1
4
2
Stop
Figure 8.37 Genetically tuning the rule fuzzy sets.
② Each new fuzzy model in the current population of models is
executed against the validation data.
1
③ The standard error of estimate for the new model is used by
the genetic algorithm as its goodness of fit. The GA attempts
to minimize this standard error.
④ If we have found a minimal and stable standard error, ...
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