Integer variables and SBXCrossover

[yhamadi75]

Hello,

I have an Integer problem, which uses the SBXCrossover operator. However, I have to encode through Float variables since IntegerSBXCrossover operator is not available for import (not in jMetalPy/jmetal/operator/init.py). Is there a reason for that? Should I just hack that file to allow export?

Is there a perf/result difference in:

• using Floats to encode Integers and applying SBXCrossover for Floats
• using Integers and applying for IntegerSBXCrossover for Integers

Using latest release to date 1.5.7, thanks for clarifying!

• y

[ajnebro]

IntegerSBXCrossover operator is not available for import (not in jMetalPy/jmetal/operator/init.py). Is there a reason for that?

It seems that we forgot to include it :(

Should I just hack that file to allow export?

We are going to fix this, but in the meantime feel free to make any changes you need to make it work.

Is there a perf/result difference in:

using Floats to encode Integers and applying SBXCrossover for Floats using Integers and applying for IntegerSBXCrossover for Integers

I have not made any study comparing both approaches so I'm afraid I cannot help. In principle, using integers should made the algorithms run faster (I don't know to what extent) and I suspect that the results should be similar.

[yhamadi75]

Thanks Antonio for the quick reply, and happy to help correcting a small thing :)