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aalitor / Job-Shop-Scheduling-Genetic-Algorithm

Job Shop Scheduling Solver using Genetic Algorithyms
MIT License
67 stars 29 forks source link

Change the objective #1

Open jpfnunes opened 7 years ago

jpfnunes commented 7 years ago

Hi,

How can change/add a new performance index to minimize, as not only time but also the cost of machines per hour.

Thanks.

aalitor commented 7 years ago

Hi jpfnunes,

If you want to create your own objective using cost, first you need to create a machine-cost data using 2D array or something. Then you should change the FitValue to TotalCost function instead of Makespan which is currently exist. To calculate the TotalCost, what you need is the total working time of each machines separately. So by multiplying the total time by the cost and summing the results, you get the TotalCost.

Boontog commented 7 years ago

Hi aalitor,

is it possible to set a fixed starttime to some processes? I want to have real jobs and "free space jobs" that come from a calendar. So these spare/free/pause jobs are not allowed to be moved/optimized.

Thanks, Boontog

Femina97 commented 3 years ago

Hi aalitor, Here input is processing time of a job ? Is that time in minutes or any slots? Could you please help!

aalitor commented 3 years ago

Hi aalitor, Here input is processing time of a job ? Is that time in minutes or any slots? Could you please help!

Hi

The time has no specific unit. You can pretend it as what you want as long as they are entered in the same unit.

Femina97 commented 3 years ago

Hi aalitor, Here input is processing time of a job ? Is that time in minutes or any slots? Could you please help!

Hi

The time has no specific unit. You can pretend it as what you want as long as they are entered in the same unit.

Thank you so much for your reply. Did you publish article or journal of this project? Could you please share the link

Femina97 commented 2 years ago

Hi aalitor, Could you please help me with the mathematical model and how solved it by genetic algorithm? Like the formulas related to the problem

JavaScript-zt commented 1 year ago

useless codes