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Table 2:
Default settings for the MPB, where the term “change frequency (u)” means that the environment changes every u fitness evaluations, S denotes the range of allele values, and I denotes the initial height for all peaks. The height of peaks is shifted randomly in the range and the width of peaks is shifted randomly in the range .
ParameterValue
Number of peaks (10 
Change frequency (u5,000 function evaluations 
Height severity 7.0 
Width severity 1.0 
Peak shape Cone 
Basic function No 
Shift length (s1.0 
Number of dimensions (D
Correlation coefficient (
Percentages of changing peaks (1.0 
Noise No 
Time-linkage No 
Number of peaks change No 
S [0, 100] 
H [30.0, 70.0] 
W [1, 12] 
I 50.0 
ParameterValue
Number of peaks (10 
Change frequency (u5,000 function evaluations 
Height severity 7.0 
Width severity 1.0 
Peak shape Cone 
Basic function No 
Shift length (s1.0 
Number of dimensions (D
Correlation coefficient (
Percentages of changing peaks (1.0 
Noise No 
Time-linkage No 
Number of peaks change No 
S [0, 100] 
H [30.0, 70.0] 
W [1, 12] 
I 50.0 
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