Purnima Subramaniam

  • Gurobi-versary
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  • Total activity 15
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Activity overview

Latest activity by Purnima Subramaniam

  • Purnima Subramaniam created a post,

    Keyerror

    Answered

    Hi, I am importing the data in my python code using excel sheet. It has been working alright until I changed some values in the excel. Everything seems to be defined and looks correct to me. I keep...

    Purnima Subramaniam 2 followers 1 comment 0 votes

  • Purnima Subramaniam created a post,

    Multi objective optimization - non dominant solution

    Answered

    Hi Jaromil, I had a question regarding a bi objective problem that I am solving. I have two objectives: objective 1 minimizes total travel time and objective 2 minimizes total unmet demand. I am us...

    Purnima Subramaniam 2 followers 1 comment 0 votes

  • Purnima Subramaniam commented,

    I also wanted to added that I am solving the bi objective problem by hierarchical lexicographic method. The priority of objective 1 is 2 and the priority of objective 2 is 1. Here is the piece of c...

    View comment Purnima Subramaniam 0 votes

  • Purnima Subramaniam commented,

    Hi Jaromil, I had a question regarding a bi objective problem that I am solving. I have two objectives: objective 1 minimizes total travel time and objective 2 minimizes total unmet demand. I am us...

    View comment Purnima Subramaniam 0 votes

  • Purnima Subramaniam commented,

    Hi Marika, Thank you for your response. It's still not clear to me on how to use ObjNumber to print all the values of optimal solution for both Obj1 and Obj2. m.optimize()m.solCount for w in range(...

    View comment Purnima Subramaniam 0 votes

  • Purnima Subramaniam created a post,

    Finding all optimal solution for a Multi-objective Optimization

    Answered

    Hi, I have set up a multi-objective mixed integer optimization model with Gurobi. In my case, I have two objectives. As far as I have understood, Gurobi does not support finding a Pareto frontier. ...

    Purnima Subramaniam 2 followers 3 comments 0 votes

  • Purnima Subramaniam commented,

    Hi Jaromil, Thank you so much for all the clarifications! Thanks, Purnima

    View comment Purnima Subramaniam 0 votes

  • Purnima Subramaniam commented,

    I had one more generic question. How do you paste the code in python code format? I am unable to paste a in a correct code format . Thanks in advance!

    View comment Purnima Subramaniam 0 votes

  • Purnima Subramaniam commented,

    Hi Jaromil, Thank you for response. With the above changes my code is working fine. I wanted to solve this bi-objective function with a hierarchical or lexicographic approach and I had the followin...

    View comment Purnima Subramaniam -1 votes

  • Purnima Subramaniam created a post,

    Multi Objective Function

    Answered

    Hi, I am tryring to solve a multi objective function problem. This is code for setting up the objective function: # set objective functionObj1 = (gp.quicksum((t_g[p,i,j]*y_kg[p,i,j,k] + t_a[p,i,j]*...

    Purnima Subramaniam 2 followers 8 comments 0 votes