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» On some integral inequalities related to the Cauchy-Bunyakov...
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MP
2010
126views more  MP 2010»
13 years 5 months ago
Two row mixed-integer cuts via lifting
Recently, Andersen et al. [1], Borozan and Cornu´ejols [7] and Cornu´ejols and Margot [10] characterized extreme inequalities of a system of two rows with two free integer varia...
Santanu S. Dey, Laurence A. Wolsey
CORR
2007
Springer
68views Education» more  CORR 2007»
13 years 6 months ago
An Improved Tight Closure Algorithm for Integer Octagonal Constraints
Integer octagonal constraints (a.k.a. Unit Two Variables Per Inequality or UTVPI integer constraints) constitute an interesting class of constraints for the representation and solu...
Roberto Bagnara, Patricia M. Hill, Enea Zaffanella
NSDI
2007
13 years 9 months ago
Network Coordinates in the Wild
Network coordinates provide a mechanism for selecting and placing servers efficiently in a large distributed system. This approach works well as long as the coordinates continue ...
Jonathan Ledlie, Paul Gardner, Margo I. Seltzer
JGO
2010
75views more  JGO 2010»
13 years 5 months ago
Optimal control of a quasi-variational obstacle problem
We consider an optimal control where the state-control relation is given by a quasi-variational inequality, namely a generalized obstacle problem. We give an existence result for s...
Samir Adly, Maïtine Bergounioux, Mohamed Ait ...
ICDT
2009
ACM
149views Database» more  ICDT 2009»
14 years 7 months ago
Query languages for data exchange: beyond unions of conjunctive queries
The class of unions of conjunctive queries (UCQ) has been shown to be particularly well-behaved for data exchange; its certain answers can be computed in polynomial time (in terms...
Juan Reutter, Marcelo Arenas, Pablo Barceló