What is penalty value in GA

조회 수: 33 (최근 30일)
SeungJu Choi
SeungJu Choi 2022년 1월 6일
답변: Alan Weiss 2022년 1월 7일
Hello,
I am a student who is using optimization MATLAB GA toolbox.
Now I'm doing binary optimization include nonlinear constraints.
But, I have ask you something and several problems are occurring in my code.
First, when I plotting a graph, I can see the generation-penalty value(G-P) graph. In here, what is a meaning of penalty value?
It is same function value? (The function value I mean refers to the value of the objective function)
Second, when I look at the G-P graph(below the picture) I got, there is a ridiculous value(it means penalty value) in the previous generation.
Is this a normal?
If that is normal, then why does the front part of generation come out like that?

답변 (1개)

Alan Weiss
Alan Weiss 2022년 1월 7일
The documentation describes the penalty value.
As for the lower-left portion of the plot, these points are infeasible. Once ga finds a feasible point, the penalty value changes. See the description of the penalty value.
Alan Weiss
MATLAB mathematical toolbox documentation

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