Γ-opt Research Group
Γ-opt Research Group
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Publications
Modelling decision-making and uncertainty
Optimizing Workover Rig Fleet Sizing and Scheduling Using Deterministic and Stochastic Programming Models
We present deterministic and stochastic programming models for the workover rig problem, one of the most challenging problems in the …
Miguel Fernández Pérez
,
Fabricio Oliveira
,
Silvio Hamacher
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DOI
Disaster relief supply pre-positioning optimization: A risk analysis via shortage mitigation
Problems related to disaster management are strongly influenced by random outcomes, which indicates the importance of using a …
Lucas Condeixa
,
Adriana Leiras
,
Fabricio Oliveira
,
Irineu de Brito
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DOI
Periodic review system for inventory replenishment control for a two-echelon logistics network under demand uncertainty: a two-stage stochastic programming approach
We propose a novel methodology for replenishment and control systems for inventories of two-echelon logistics networks using a …
Paulo Cunha
,
Fabricio Oliveira
,
Fernanda Raupp
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DOI
A two-stage stochastic programming model for periodic replenishment control system under demand uncertainty
The inventory control system consists of defining strategies to manage inventory replenishment such that costs involved in ordering, …
Paulo Cunha
,
Fernanda Raupp
,
Fabricio Oliveira
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DOI
A two-stage stochastic programming model for inventory management in the blood supply chain
Managing inventories in the blood supply chain is a challenging task, mainly due to the uncertain nature of the demand for blood units, …
Mary Dillon
,
Fabricio Oliveira
,
Babak Abbasi
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DOI
A framework for crude oil scheduling in an integrated terminal-refinery system under supply uncertainty
Operational decisions for crude oil scheduling activities are determined on a daily basis and have a strong impact on the overall …
Fabricio Oliveira
,
Paula Nunes
,
Rosa Blajberg
,
Silvio Hamacher
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DOI
Tactical capacity planning in a real-world ETO industry case: A robust optimization approach
Uncertainty has a significant impact on the stability and performance of engineering-to-order (ETO) production systems by affecting due …
Andréa Nunes Carvalho
,
Fabricio Oliveira
,
Luiz Felipe Scavarda
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DOI
Design of a hydrogen supply chain with uncertainty
The use of fuels with low environmental impact has been recently highlighted in the media. In this context, the use of hydrogen as a …
Paula Nunes
,
Fabricio Oliveira
,
Silvio Hamacher
,
Ali Almansoori
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DOI
Robust Optimization for Scheduling and Lot-sizing of a Single Machine with Sequence-dependent Changeovers
A plethora of contributions have appeared in the literature over the past decade in the area of production planning of a single machine …
Hossein Mostafaei
,
Fabricio Oliveira
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DOI
Optimization of the petroleum product supply chain under uncertainty: A case study in northern Brazil
This article addresses the problem of optimizing the investment planning process of a logistics infrastructure for the distribution of …
Fabricio Oliveira
,
Silvio Hamacher
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DOI
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