Mario Ruthmair
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Mario Ruthmairによる最近のアクティビティ-
Hi Eli, Your callback should be written to generate lazy constraints to cut off MIPSOL solutions that violate your capacity constraints, even if you have previously added the same lazy constraints...
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Hi Eli, this is indeed a very interesting point! The problem I want to solve is a capacitated routing problem. Capacity cuts (the cut you are mentioning above is one of them) are used both as lazy ...
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Hi Jaromił, if I add all lazy constraints a priori to the model with lazy attribute 1, then all lazy constraints are correctly satisfied and the solution is different (I added the LP file including...
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The answer to question 4 is in fact easy: It is the total number of callback calls, including POLLING, PRESOLVE, MIPSOL, MIPNODE, etc., not only the user-cut callbacks. Best regards, Mario