Why is my Obtained PF is not aligned with True PF when i run my simulation

When i run a multi-objective optimization problem in matlab, i am a getting a pareto curve that is not aligning with the true PF. i have double checked my objective functions equations, changed the number of iterations and the archive size but still the problem persist. please kindly asist on how do i align the two. Thanks

[Torsten]

How could we help without knowing your problem and your code ?

[Meet]

Hi @Fred, could you please share the exact issue you are facing along with the code?

Answer 1

[Eric]

A common reason why the calculated Pareto curve does not correspond to the true Pareto front is a problem with the scaling or relative size of your objective functions. If the values ​​of one objective function are significantly larger or smaller than the values ​​of another, it can be difficult for the algorithm to balance them correctly.

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