Solving the p -Median Problem with a Semi-Lagrangian Relaxation
نویسندگان
چکیده
Lagrangian relaxation is commonly used in combinatorial optimization to generate lower bounds for a minimization problem. We study a modified Lagrangian relaxation which generates an optimal integer solution. We call it semi-Lagrangian relaxation and illustrate its practical value by solving large-scale instances of the p-median problem.
منابع مشابه
Semi - Lagrangian relaxation ∗
Lagrangian relaxation is commonly used in combinatorial optimization to generate lower bounds for a minimization problem. We propose a modified Lagrangian relaxation which used in (linear) combinatorial optimization with equality constraints generates an optimal integer solution. We call this new concept semi-Lagrangian relaxation and illustrate its practical value by solving large-scale instan...
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ورودعنوان ژورنال:
- Comp. Opt. and Appl.
دوره 35 شماره
صفحات -
تاریخ انتشار 2006