Reverse logistics network design with stochastic lead times

Reverse logistics network design with stochastic lead times

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Article ID: iaor20073176
Country: United Kingdom
Volume: 34
Issue: 2
Start Page Number: 395
End Page Number: 416
Publication Date: Feb 2007
Journal: Computers and Operations Research
Authors: ,
Keywords: programming: integer, heuristics: genetic algorithms
Abstract:

This work is concerned with the efficient design of a reverse logistics network using an extended version of models currently found in the literature. Those traditional, basic models are formulated as mixed integer linear programs (MILP-model) and determine which facilities to open that minimize the investment, processing, transportation, disposal and penalty costs while supply, demand and capacity constraints are satisfied. However, we show that they can be improved when they are combined with a queueing model because it enables to account for (1) some dynamic aspects like lead time and inventory positions, and (2) the higher degree of uncertainty inherent to reverse logistics. Since this extension introduces nonlinear relationships, the problem is defined as a mixed integer nonlinear program (MINLP-model). Due to this additional complexity, the MINLP-model is presented for a single product–single-level network. Several examples are solved with a genetic algorithm based on the technique of differential evolution.

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