Changing weights for a multi-objective Problem.

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Mario Klostermeier

2023年05月05日 11:21

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Hello,

I am currently working on the weight sum method and would like to solve the same model with different weights. For this I would like to know how I can best change the weights of the different objectives.

関連

• Multiple Objectives

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  Simranjit Kaur

  • Gurobi Staff

  2026年11月13日 01:44

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  Mario Klostermeier

  2023年05月05日 11:50

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  This is my solution so far. Is there a better way ?

  for w_index in range(model.NumObj):
      model.Params.ObjNumber = w_index
      model.update()
      model.ObjNWeight = weights[w_index]
      model.update()

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  Mario Ruthmair

  • Gurobi Staff

  2023年05月10日 19:49

  Hi Mario,

  You do not necessarily need the calls to update(), but apart from that this is the way to go.

  Best regards,
  Mario

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