5 search results - page 1 / 1 » A Linear Round Lower Bound for Lovasz-Schrijver SDP Relaxati... |
COCO
2007
Springer
14 years 5 months ago
2007
Springer
We study semidefinite programming relaxations of Vertex Cover arising from repeated applications of the LS+ “lift-and-project” method of Lovasz and Schrijver starting from th...
STOC
2007
ACM
14 years 11 months ago
2007
ACM
We study linear programming relaxations of Vertex Cover and Max Cut arising from repeated applications of the "lift-and-project" method of Lovasz and Schrijver starting ...
STOC
2009
ACM
14 years 11 months ago
2009
ACM
We prove strong lower bounds on integrality gaps of Sherali?Adams relaxations for MAX CUT, Vertex Cover, Sparsest Cut and other problems. Our constructions show gaps for Sherali?A...
STOC
2009
ACM
14 years 11 months ago
2009
ACM
We study integrality gaps for SDP relaxations of constraint satisfaction problems, in the hierarchy of SDPs defined by Lasserre. Schoenebeck [25] recently showed the first integra...
FOCS
2008
IEEE
14 years 5 months ago
2008
IEEE
We show that for k ≥ 3 even the Ω(n) level of the Lasserre hierarchy cannot disprove a random k-CSP instance over any predicate type implied by k-XOR constraints, for example ...