Complexity of branch-and-bound and cutting planes in mixed-integer optimization
Complexity of branch-and-bound and cutting planes in mixed-integer optimization
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混合整数优化中分支定界和割平面的复杂性
DOI:
10.1007/s10107-022-01789-5
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发表时间:
2022
影响因子:
2.7
通讯作者:
Jiang, Hongyi
中科院分区:
文献类型:
--
作者:
Basu, Amitabh;Conforti, Michele;Di Summa, Marco;Jiang, Hongyi
We investigate the theoretical complexity of branch-and-bound (BB) and cutting plane (CP) algorithms for mixed-integer optimization. In particular, we study the relative efficiency of BB and CP, when both are based on the same family of disjunctions. We extend a result of Dash (International Conference on Integer Programming and Combinatorial Optimization (IPCO), pp. 145–160, 2002) to the nonlinear setting which shows that for convex 0/1 problems, CP does at least as well as BB, with variable disjunctions. We sharpen this by giving instances of the stable set problem where we can provably establish that CP does exponentially better than BB. We further show that if one moves away from 0/1 sets, this advantage of CP over BB disappears; there are examples where BB finishes inO(1) time, but CP takes infinitely long to prove optimality, and exponentially long to get to arbitrarily close to the optimal value (for variable disjunctions). We next show that if the dimension is considered a fixed constant, then the situation reverses and BB does at least as well as CP (up to a polynomial blow up factor), for quite general families of disjunctions. This is also complemented by examples where this gap is exponential (in the size of the input data).
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影响因子:
1.1
作者:
A. Basu;M. Conforti;M. D. Summa;Hongyi Jiang
通讯作者:
Hongyi Jiang
DOI:
10.1016/j.orl.2022.04.008
发表时间:
2021
期刊:
Oper. Res. Lett.
影响因子:
--
作者:
Santanu S. Dey;Prachi Shah
通讯作者:
Prachi Shah
DOI:
10.1287/moor.11.4.537
发表时间:
1986-11
期刊:
Math. Oper. Res.
影响因子:
--
作者:
M. Grötschel;W. Pulleyblank
通讯作者:
M. Grötschel;W. Pulleyblank
影响因子:
1.1
作者:
F. Eisenbrand;Andreas S. Schulz
通讯作者:
Andreas S. Schulz
DOI:
10.4230/lipics.ccc.2021.6
发表时间:
2021
期刊:
Proceedings of the 36th Computational Complexity Conference
影响因子:
--
作者:
Noah Fleming;Mika Göös;R. Impagliazzo;T. Pitassi;Robert Robere;Li;A. Wigderson
通讯作者:
A. Wigderson