spineda
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spinedaさんの最近のアクティビティ-
spinedaさんがコメントを作成しました:
No, instances differ because some of the parameters are different.
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spinedaさんがコメントを作成しました:
Ok, I did that. I was expecting the indicator formulation to consistently outperform the big-M reformulation when using the same bounds, but that’s not always the case. In fact, I implemented three...
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spinedaさんがコメントを作成しました:
Thanks again. I’ve now run all simulations with the indicator constraints, using the same bounds I had for the other methods, and the results have improved significantly. So it makes more sense to ...
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spinedaさんがコメントを作成しました:
Thanks a lot Riley, that example is very illustrative and I finally understand what Gurobi is doing internally.
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spinedaさんがコメントを作成しました:
Thanks Riley, I think I get your point. So what you're saying is that I can use knowledge about the problem to compute bounds on RHS, feed them to Gurobi, and still get some benefits from the indic...
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spinedaさんがコメントを作成しました:
Dear Riley,Thank you very much for your reply.Yes, the problem is similar to the one you pointed out.What I don’t understand is the following: if Gurobi is able to find 62 solutions, with 12 of the...
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spinedaさんがコメントを作成しました:
Dear Riley,Thanks for the reply.I have another example to this repository (https://github.com/salvapineda/gurobi_indicator) including a .mps file and a .py file to read it and execute with a feasib...
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spinedaさんが投稿を作成しました:
Weird behavior indicator function
回答済みHi, I'm solving a mip with indicator constraints. I include below the log. First I solve the model with binary variables, then I fix the binaries and solve the continuous LP. In the last row of the...
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spinedaさんが投稿を作成しました:
Infeasible in nonc-convex model
回答済みI am solving an OPF problem using polar coordinates (with cosine and sine terms), and Gurobi reports that the model is infeasible. However, I know that a feasible solution exists, and when I warm-s...