John Raphy Karippery

hello mario,thank you for your reply. and I am so happy that you understand my model. I need to extend my model to minimize total time violations. first I need to find platoon edges. ie if any truc...

hello Mario,I understand what you mean. currently, I have a mathematical model for a single objective vehicle platooning problem (minimize fuel cost). c(e) = distance  between edges i,jThank youJo...

Hello Mario, Thank you for your reply. I have already explained my Vehicle platooning problem model in my previous question.  I just want to create a second objective to my model called minimizing ...

Hello, Thank you so much for your code that so helps full. your code is almost right for my model. 1.  is that possible to a /[ gp.max_() \] in the objective function. on your first answer, you use...

Hello Maliheh,Thank you for your answer.  I already have a model for the vehicle platoon problems with the objective minimize fuel cost. my task is to add a second objective to my model called mini...

Hi Maliheh,After so much reading and a lot of tries, I thought of covert this constrain to the objective function. Currently, I have 2 objectives for my model I need to use the epsilon constrain me...

Hello,Thank you for your help. constrain for travelling time doesn't make any changes to my model. something I miss in my model for example, if track1 max time is 20 and start node 1 and end node i...

Hello Maliheh,Thank you for your answer is very helpful.  In my logic, my graph(input) is bi-directional edges. that means there is a route from 8 to 1. But I change input edges and distance like t...

Hello I also need your help to convert to Gurobi.  ORD : Returns the relative position of an element in a set. Note that ord may be used only with one-dimensional, static, ordered sets. For mor...

Do you mean like this? objes = mdl.setObjectiveN(quicksum(x[e,l] for e in es for l in load)-1, 0, 1)