Rights statement: Copyright © 2015, Society for Industrial and Applied Mathematics
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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Ellipsoidal relaxations of the stable set problem
T2 - theory and algorithms
AU - Giandomenico, Monia
AU - Letchford, Adam
AU - Rossi, Fabrizio
AU - Smriglio, Stefano
N1 - Copyright © 2015, Society for Industrial and Applied Mathematics
PY - 2015/8/1
Y1 - 2015/8/1
N2 - A new exact approach to the stable set problem is presented, which attempts to avoid the pitfalls of existing approaches based on linear and semidefinite programming. The method begins by constructing an ellipsoid that contains the stable set polytope and has the property that the upper bound obtained by optimising over it is equal to the Lovasz theta number. This ellipsoid can then be used to construct useful convex relaxations of the stable set problem, which can beembedded within a branch-and-bound framework. Extensive computationalresults are given, which indicate the potential of the approach.
AB - A new exact approach to the stable set problem is presented, which attempts to avoid the pitfalls of existing approaches based on linear and semidefinite programming. The method begins by constructing an ellipsoid that contains the stable set polytope and has the property that the upper bound obtained by optimising over it is equal to the Lovasz theta number. This ellipsoid can then be used to construct useful convex relaxations of the stable set problem, which can beembedded within a branch-and-bound framework. Extensive computationalresults are given, which indicate the potential of the approach.
KW - combinatorial optimisation
KW - semidefinite programming
KW - branch-and-cut
U2 - 10.1137/140966332
DO - 10.1137/140966332
M3 - Journal article
VL - 25
SP - 1944
EP - 1963
JO - SIAM Journal on Optimization
JF - SIAM Journal on Optimization
SN - 1052-6234
IS - 3
ER -