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http://hdl.handle.net/10773/10561
Title: | Discrete time and continuous time formulations for a short sea inventory routing problem |
Author: | Agra, Agostinho Christiansen, Marielle Delgado, Alexandrino |
Keywords: | Inventory routing Short sea shipping Mixed integer formulations Valis inequalities |
Issue Date: | 2013 |
Publisher: | Universidade de Aveiro |
Abstract: | We consider a fuel oil distribution problem where an oil company is responsible for the routing and scheduling of ships between ports such that the demand for various fuel oil products is satisfied during the planning horizon. The production/consumption rates are given and assumed to be constant. We provide two alternative mixed integer formulations: a discrete time model adapted from the case where the production/consumption rates are varying and a classical continuous time formulation. We discuss different extended formulations and valid inequalities that allow us to reduce the linear gap of the two initial formulations. A computational study comparing the various models accordingly to their size, linear gap and running time, was conducted based on real small-size instances, using a commercial software. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/10561 |
Appears in Collections: | CIDMA - Artigos |
Files in This Item:
File | Description | Size | Format | |
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formulations_SSS.pdf | Documento principal | 476.78 kB | Adobe PDF | View/Open |
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