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# GA optimization

Experimenter

Hey,

I hope someone can help me with my problem.

I want to use GA to find a good sequence for the final assembly of cars.

I have about 1200 cars and 400 stations.

As chormosomes i want to use the car sequence (about 1200 cars).

I add a table with some intial sequences.

I have a method to compare the sequences. I use this for the fitness calculation.

For the fitness calculation i need the new car sequence as input for my methed. Where are the new sequence stored?

Is this the best approach or how would you apply GA on this problem.

8 REPLIES 8

# Re: GA optimization

Gears Esteemed Contributor

the GA changes the order (of rows) in your sequence-table, so you can read the new sequence directly from your table

 Steffen Bangsowfreelance simulation specialist  web: www.bangsow.eumail: steffen@bangsow.net

# Re: GA optimization

Experimenter

I made a mistake, it is working as you told now.

I use the GA wizzard at the moment. How can I see how the new sequence (offspring) is created?

What kind of mutations, inversions, and/or crossovers are used in this process?

# Re: GA optimization

Gears Esteemed Contributor

look in the wizzard - Objects - GA Control --> Selection

 Steffen Bangsowfreelance simulation specialist  web: www.bangsow.eumail: steffen@bangsow.net

# Re: GA optimization

Creator

Dear Steffen

I want to know do you have any approach to prevent < GA changes the order (of rows) in my sequence-table>.I just want to keep my table formal.

Thank you!

# Re: GA optimization

Gears Esteemed Contributor
this will not work; it is just what the GA Sequence optimization does, it changes the order of your table and check the changes, based on the last order a new order will be created; so the GA needs some additional columns in the table to store e.g. the Information about the Chromosoms.

 Steffen Bangsowfreelance simulation specialist  web: www.bangsow.eumail: steffen@bangsow.net

# Re: GA optimization

Creator

Dear Steffen

Thanks for your reply.I have another question about GAWizard.I can't keep the parameter in the GAWizard basic target.( GAWizard-Objects - GA Control --> Set->basic target),when I reset the GAWizard ,this set will be resetted " GAWizard.Seqloc.GASequence ."(or inform me 1 uesr have setted....),I don't know what shoud I do?

# Re: GA optimization

Gears Esteemed Contributor

you need to define your parameters in the dialog of the GAWizard (tab define, minimum, maximum -- fitness values), the GAControl will take the data from the main menu.

 Steffen Bangsowfreelance simulation specialist  web: www.bangsow.eumail: steffen@bangsow.net

# Re: GA optimization

Creator

Dear Steffen

I'm sorry ,I don't make it clearly for my question.If I want to use GAWizard, GASequence and a processing table. I want to use this GASequence as my "optimise target ", optimize this table.But  (Object -> GA control-> GAtable)will be reset. picture1 is right,if I reset it become picture2 .I want keep this setting.What should I do?

picture1picture2

Thank you!