Tabu search and lower bounds for a combined production-transportation problem
نویسندگان
چکیده
In this paper we consider a combined production-transportation problem, where n jobs have to be processed on a single machine at a production site before they are delivered to a customer. At the production stage, for each job a release date is given; at the transportation stage, job delivery should be completed not later than a given due date. The transportation is done by m identical vehicles with limited capacity. It takes a constant time to deliver a batch of jobs to the customer. The objective is to find a feasible schedule minimizing the maximum lateness. After formulating the considered problem as a mixed integer linear program, we propose different methods to calculate lower bounds. Then we describe a tabu search algorithm which enumerates promising partial solutions for the production stage. Each partial solution is complemented with an optimal transportation schedule (calculated in polynomial time) achieving a coordinated solution to the combined productiontransportation problem. Finally, we present results of computational experiments on randomly generated data.
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ورودعنوان ژورنال:
- Computers & OR
دوره 40 شماره
صفحات -
تاریخ انتشار 2013