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SMI
2005
IEEE
14 years 2 months ago
Mesh Editing with an Embedded Network of Curves
We propose a new topological data structure for representing a set of polygonal curves embedded in a meshed surface. In this embedding, the vertices of the curve do not necessaril...
Wan-Chiu Li, Bruno Lévy, Jean-Claude Paul
STOC
2009
ACM
150views Algorithms» more  STOC 2009»
14 years 9 months ago
Integrality gaps for Sherali-Adams relaxations
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...
Moses Charikar, Konstantin Makarychev, Yury Makary...
MP
1998
105views more  MP 1998»
13 years 8 months ago
Capacitated facility location: Separation algorithms and computational experience
We consider the polyhedral approach to solving the capacitated facility location problem. The valid inequalities considered are the knapsack, ow cover, e ective capacity, single d...
Karen Aardal
SODA
2010
ACM
175views Algorithms» more  SODA 2010»
14 years 6 months ago
Fast SDP Algorithms for Constraint Satisfaction Problems
The class of constraint satisfactions problems (CSPs) captures many fundamental combinatorial optimization problems such as Max Cut, Max q-Cut, Unique Games, and Max k-Sat. Recent...
David Steurer
ESA
2008
Springer
115views Algorithms» more  ESA 2008»
13 years 10 months ago
A New Approach to Exact Crossing Minimization
The crossing number problem is to find the smallest number of edge crossings necessary when drawing a graph into the plane. Eventhough the problem is NP-hard, we are interested in ...
Markus Chimani, Petra Mutzel, Immanuel M. Bomze