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IOR
2006
177views more  IOR 2006»
13 years 5 months ago
Combinatorial Benders' Cuts for Mixed-Integer Linear Programming
Mixed-Integer Programs (MIP's) involving logical implications modelled through big-M coefficients, are notoriously among the hardest to solve. In this paper we propose and an...
Gianni Codato, Matteo Fischetti
SIAMJO
2010
135views more  SIAMJO 2010»
13 years 3 months ago
On the Complexity of Selecting Disjunctions in Integer Programming
The imposition of general disjunctions of the form “πx ≤ π0 ∨ πx ≥ π0 + 1”, where π, π0 are integer valued, is a fundamental operation in both the branch-and-bound...
Ashutosh Mahajan, Ted K. Ralphs
PSD
2010
Springer
109views Database» more  PSD 2010»
13 years 3 months ago
A Tool for Analyzing and Fixing Infeasible RCTA Instances
Minimum-distance controlled tabular adjustment methods (CTA), and its restricted variants (RCTA), is a recent perturbative approach for tabular data protection. Given a table to be...
Jordi Castro, José A. González
COCOON
2008
Springer
13 years 7 months ago
A Linear Programming Duality Approach to Analyzing Strictly Nonblocking d-ary Multilog Networks under General Crosstalk Constrai
When a switching network topology is used for constructing optical cross-connects, as in the circuit switching case, no two routes are allowed to share a link. However, if two rou...
Hung Q. Ngo, Yang Wang 0014, Anh Le