نتایج جستجو برای: joint economic lot sizing
تعداد نتایج: 548618 فیلتر نتایج به سال:
Literature and most textbooks around the world describe Silver-Meal in such a way that periods with zero demand make suggest higher frequency of order replenishments than necessary therefore total costs necessary. Silver-Meal, still best-known technique, is inferior to other lesser-known techniques when time interval calculations presently days not months. The purpose this article show another ...
The textbook Dantzig-Wolfe decomposition for the Capacitated Lot Sizing Problem (CLSP), as already proposed by Manne in 1958, has an important structural deficiency. Imposing integrality constraints on the variables in the full blown master will not necessarily give the optimal IP solution as only production plans which satisfy the Wagner-Whitin condition can be selected. It is well known that ...
In this paper we propose exact solution methods for a bilevel uncapacitated lot-sizing problem with backlogs. This is an extension of the classical uncapacitated lot-sizing problem with backlogs, in which two autonomous and self-interested decision makers constitute a twoechelon supply chain. The leader buys items from the follower in order to meet external demand at lowest cost. The follower a...
This paper presents a hybrid tabu search strategy for lot sizing problems. This strategy allows the exploitation of the quality of the well-known relax-and-fix heuristic, inside a tabu search framework which enforces diversity. The computational results show an advantage of this strategy when compared to a version of the relax-and-fix heuristic and to time constrained branch-and-bound.
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