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- W2088339996 abstract "Lagrangian relaxations have been used in a variety of IP problem settings. The main thrust of such efforts is to obtain bounding information for use in a branch-and-bound procedure. This paper examines the effect of adding a single surrogate constraint to Lagrangian subproblems in an attempt to improve upon the bounds produced by conventional Lagrangian relaxation. Computational results on some randomly generated set-covering problems are reported." @default.
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- W2088339996 date "1988-07-01" @default.
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- W2088339996 title "Using Surrogate Constraints in a Lagrangian Relaxation Approach to Set-Covering Problems" @default.
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- W2088339996 doi "https://doi.org/10.1057/jors.1988.115" @default.
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