Konstantin Keck
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Konstantin Keckさんの最近のアクティビティ-
Konstantin Keckさんが投稿を作成しました:
Matheuristic: Injecting Heuristic Solutions more regularly
ユーザーの入力を待っています。Hi all,I'm implementing a matheuristic using Gurobi and I’m encountering challenges with achieving a smooth "Ping-Pong" interaction between the solver and my custom heuristic.Goal:My objective is t...
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Konstantin Keckさんがコメントを作成しました:
Hi Riley,Thank you again for your helpful advice.I just wanted to share a quick update regarding my original query on user cuts. In the end, I didn’t implement a callback. Instead, I used the const...
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Konstantin Keckさんがコメントを作成しました:
Hi Riley,thank you for your advice. The gurobi logtools also look very useful.I'll try and work with that.Best regards,Konstantin
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Konstantin Keckさんがコメントを作成しました:
Hi Riley,Thank you for your response!I followed your suggestion: I set PreCrush = 1 and didn’t add cuts. The results remained the same. Just to clarify: the valid inequalities are not modeled as ex...
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Konstantin Keckさんが投稿を作成しました:
User cuts for relxation
回答済みHi,I’m currently using Gurobi to solve a LP and have implemented several strong forcing constraints (valid inequalities). These constraints significantly improve the lower bound, especially at the ...