Sibo Li

Hi Riley,I set the model with default parameters, but no improvement is observed. And No Relaxation Heuristic seems not working either.However, a gap of about 20% is not perfect but acceptable for ...

Hi Riley,Thanks for reminding me that, actually Crossover=0 is set as I copied the parameters from another problem, where crossover takes too much time.  I have tried enabling crossover and that he...

Thanks a lot, Riley,I have been trying multiple times for one instance of our model, it seems that whether the problem can be solved is not random, but depends on the specific input of different ca...