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Aspects of OR - Integer Programming (Part 1)
From LP to IP: why integrality matters, the combinatorial explosion, LP relaxations, and why rounding fails.
Integer-programming
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Aspects of OR - Integer Programming (Part 2)
Branch and bound: the workhorse algorithm for integer programming, explained with a complete example showing all three pruning types.- Published on
Aspects of OR - Integer Programming (Part 3)
Cutting planes: tightening LP relaxations by slicing off fractional solutions, with Gomory cuts and cover inequalities.- Published on
Aspects of OR - Integer Programming (Part 4)
Branch-and-cut and how modern IP solvers work: combining branch and bound with cutting planes, presolve, heuristics, and parallelism.