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Now showing items 181-190 of 191
Article
New strategy for anti‑loop formulations
(Springer, 2024)
This paper presents a strategy based on binary labelling of nodes for the creation of anti-loop formulations from existing strategies. This strategy prevents by default the formation of odd cycles, therefore it can ...
Article
Novel Approaches to the Formulation of Scheduling Problems
(MDPI, 2024)
This paper presents two novel formulations for scheduling problems, namely order- position hybrid formulation (OPH) and order-disjunctive hybrid formulation (ODH), which extend and combine parts of existing formulation ...
Article
Sustainability and Resilience of Engineering Assets
(MDPI, 2024-01)
The frequency and severity of natural or human-induced disaster events, such as floods, earthquakes, hurricanes, fires, pandemics, hazardous material spills, groundwater contamination, structural failures, explosions, ...
Article
On heuristic solutions for the stochastic flowshop scheduling problem Author links open overlay panel
(Elsevier, 2015)
We address the problem of scheduling jobs in a permutation flowshop when their processing times adopt a given distribution (stochastic flowshop scheduling problem) with the objective of minimization of the expected makespan. ...
Article
City-Friendly Smart Network Technologies and Infrastructures: The Spanish Experience
(IEEE Transactions on Power Systems, 2018)
Efficient, resilient, and sustainable electricity delivery is a key cornerstone in increasingly large and complex urban environments, where citizens expect to keep or rise their living standards. In this context, cost-effective ...
Article
Arrival and service time dependencies in the single- and multi-visit selective traveling salesman problem
(Elsevier Ltd., 2024-06)
We analyze several time dependency issues for the selective traveling salesman problem with time-dependent profits. Specifically, we consider the case in which the profit collected at a vertex depends on the service time, ...
Article
Digital twin model with machine learning and optimization for resilient production–distribution systems under disruptions
(Elsevier Ltd., 2024-05)
Inspired by a real-life problem in the semiconductor industry, we introduce a novel digital twin model for a company subject to the adverse effects of unpredictable disruptions. Specifically, this company manufactures a ...
Article
Efficiency benchmarking and remuneration of Spanish electricity distribution companies
(Elsevier Ltd, 2020-12)
In Spain, the average remuneration of large electric distribution companies is much lower than that of smaller ones, which leads us to wonder if the smaller ones are managed efficiently. A meta-frontier DEA model is ...
Article
A payroll efficiency analysis of Europe’s top football leagues
(Oxford University Press, 2024-05)
Top European football teams have large budgets mainly due to the high wage bills they pay to the players. Therefore, it would be interesting to determine if these football teams are paying inflated salaries considering the ...
Article
Data envelopment analysis of systems with multiple modes of functioning
(Springer Nature, 2019-07-15)
Many systems can operate in different modes of functioning. Conventional data envelopment analysis (DEA) would ignore that fact and consider instead that the system is a black box, paying attention just to the overall input ...