Information Technology Reference
In-Depth Information
100
90
80
Roulette
Tournament
Deterministic
70
60
50
40
30
20
10
0
0
50
100
150
200
250
300
350
400
450
500
Number of generations
Figure 12.16.
Comparison of roulette-wheel, tournament, and deterministic
selection schemes on the more difficult test sequence (12.1).
Table 12.7
General settings for the sequence induction experiments used to
compare different selection schemes.
SI1
SI2
Number of runs
100
100
Population size
50
50
Number of fitness cases
10
10
Function set
+ - * /
+ - * /
Head length
7
6
Number of genes
5
7
Linking function
+
+
Chromosome length
75
91
Mutation rate
0.044
0.044
One-point recombination rate
0.3
0.3
Two-point recombination rate
0.3
0.3
Gene recombination rate
0.1
0.1
IS transposition rate
0.1
0.1
IS elements length
1,2,3
1,2,3
RIS transposition rate
0.1
0.1
RIS elements length
1,2,3
1,2,3
Gene transposition rate
0.1
0.1
Selection range
25%
25%
Precision
0%
0%
