Output variables order

Answered

Olivier GRACIANNE

December 01, 2021 18:27

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Hello,

I have a matrix containing word scores in diffferent clusters and I want the solver to select words from the cluster in which they have the highest score.

It translates into having in the one hand a cluster / word matrix S where S[i, j] is the score of the word j in the cluster i and in the other hand, a binary matrix X of the same size for the solver to do the selection.

My code produces this selection, picking words where it's best suited, but I can't get to know which cluster corresponds to a given line of X (a tupleDict) because the solver changes the line order of the binary matrix (for optimization purposes I guess, as lines in the output are sorted regarding thir score).

How would you address this problem ?

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• Official comment

  

  Simranjit Kaur

  • Gurobi Staff

  June 23, 2025 02:43 Edited

  This post is more than three years old. Some information may not be up to date. For current information, please check the Gurobi Documentation or Knowledge Base. If you need more help, please create a new post in the community forum. Or why not try our AI Gurobot?.
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  Jaromił Najman

  • Gurobi Staff

  December 06, 2021 09:30

  Hi Olivier,

  Could you please post a minimal working example of what exactly you are trying to achieve? It is quite hard to understand what you are trying to do without an explicit example.

  Best regards,
  Jaromił

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  Olivier GRACIANNE

  December 06, 2021 15:23

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  Hi,

  I just managed to find a workaround. I instanciated a constraint tupleDict per cluster instead of one for all the constraint matrix. Thus output order does not matter anymore.

  Thanks!

  Best regards,
  Olivier

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