Information Technology Reference
In-Depth Information
0.25
Target
Model
0.20
0.15
0.10
0.05
0.00
-1.0
-0.5
0.0
0.5
1.0
Figure 6.8. Comparison of the target function (6.1) with the best model of genera-
tion 3 (chromosome 3; see its expression in Figure 6.7). It has a fitness of 421.5158
and an R-square of 0.59947.
In the next four generations the best individuals are either clones of the
best of the previous generations or variants (some minor, other not so minor)
of the best (these chromosomes are highlighted in all the populations):
Generation N: 4
0123456789001234567890012345678012345678
*aa++aaaaaa-aa++aaaaaa+0*-01010****01010,0-[ 0] = 421.5158
*a*a+aaaaaa*aa++aaaaaa*0*-01111-**+00100,1-[ 1] = 3.155922
*aa++aaaaaa*+aa+aaaaaa+0*-111100*-011010,1-[ 2] = 376.9933
*aa++aaaaaa*aa++aaaaaa++-001111-+**00100,1-[ 3] = 376.9933
*+aa+aaaaaa+-*--aaaaaa+0*-11010**-011010,1-[ 4] = 0
*aa+*aaaaaa-**/+aaaaaa+0*-11110**-011010,0-[ 5] = 376.9933
*aa++aaaaaa*aa++aaaaaa00*-01010**1*01010,0-[ 6] = 376.9933
*aa++aaaaaa-**/+aaaaaa-+0*01110-/*+00100,1-[ 7] = 0
*aa++aaaaaa-**/+aaaaaa+0*-01011-*-+00100,0-[ 8] = 264.9838
-aa++aaaaaa+aa**aaaaaa+0*-11010**-011010,1-[ 9] = 0
*aaa+aaaaaa-aa++aaaaaa+0-*11010***-10110,0-[10] = 376.9933
*aa++aaaaaa*aa++aaaaaa+0*-010101*-001010,1-[11] = 376.9933
*aa++aaaaaa*aa++aaaaaa+0--11111-*-+00100,1-[12] = 23.42741
-aaaaaaaaaa+*aa+aaaaaa+0*-11110**-011010,1-[13] = 0
*aa++aaaaaa-aa++aaaaaa-*0+110101**001010,1-[14] = 0
+aa+*aaaaaa-**/+aaaaaa-+0*11110**-011010,1-[15] = 0
*aa++aaaaaa+**--aaaaaa+0*-01010****01010,0-[16] = 376.9933
 
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