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Matteo Fischetti's user avatar
Matteo Fischetti's user avatar
Matteo Fischetti's user avatar
Matteo Fischetti
  • Member for 4 years, 11 months
  • Last seen more than 4 years ago
29 votes

Feeding known lower bounds to solvers

20 votes

Infeasibility in mathematical optimization models

15 votes

Are there any OR challenges that are similar to Kaggle's competitions?

14 votes

How to determine if a given problem seems to be a good fit to be solved using combinatorial Benders decomposition

13 votes

Why is it important to choose big-M carefully and what are the consequences of doing it badly?

12 votes
Accepted

How to get the best bound of large LP problems in CPLEX?

11 votes
Accepted

Performance of a branch and bound algorithm VS branch-cut-heuristics

10 votes
Accepted

How to change the search strategy in a B&B framework, i.e., start with depth first and then continue with best node?

10 votes

Well-known parent/child pairs in the field of OR

10 votes

Modeling floor function exactly

7 votes

How could we simplify solving the large scale MIPs without using any advanced methods like decompositions?

6 votes

Applicability of Lagrange Multipliers in the analysis of large-scale MILPs?

5 votes

Solving ATSP problem for large-scale problem

2 votes

Might you know any simple puzzles similar to $n$ queens? Anything parametrized worth running to a constraint solver?