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Listar por autor "Ruiz García, Rubén"

Mostrando ítems 1-20 de 88

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A branch and bound approach for large pre-marshalling problems

Tanaka, Shunji; Tierney, Kevin; Parreño-Torres, Consuelo; Alvarez-Valdes, Ramón; Ruiz García, Rubén (Elsevier, 2019-10-01)

[EN] The container pre-marshalling problem involves the sorting of containers in stacks so that there are no blocking containers and retrieval is carried out without additional movements. This sorting process should be ...
A comparison of machine learning models for the detection of metastatic tissue in axillary lymph nodes

Abad Martínez, Javier (Universitat Politècnica de València, 2020-07-30)

[EN] Breast cancer is currently the leading cause of death due to cancer in women, after lung cancer. For its diagnosis and staging, detection of metastatic tissue in axillary lymph nodes is occasionally used, since lymphatic ...
A comprehensive review and evaluation of permutation flowshop heuristics to minimize flowtime

Pan, Quan-Ke; Ruiz García, Rubén (Elsevier, 2013-01)

[EN] In recent years, a large number of heuristics have been proposed for the minimization of the total or mean flowtime/completion time of the well-known permutation flowshop scheduling problem. Although some literature ...
A constraint programming approach for the premarshalling problem

Jiménez-Piqueras, Celia; Ruiz, Rubén; Parreño-Torres, Consuelo; Alvarez-Valdes, Ramon (Elsevier, 2023-04-16)

[EN] The enormous amount of containers handled at ports hampers the efficiency of terminal operations. The optimization of crane movements is crucial for speeding up the loading and unloading of vessels. To this end, the ...
A delay-based dynamic scheduling algorithm for bag-of-task workflows with stochastic task execution times in clouds

Cai, Zhicheng; Li, Xiaoping; Ruiz García, Rubén; Li, Qianmu (Elsevier, 2017-06)

[EN] Bag-of-Tasks (BoT) workflows are widespread in many big data analysis fields. However, there are very few cloud resource provisioning and scheduling algorithms tailored for BoT workflows. Furthermore, existing algorithms ...
A genetic algorithm for the unrelated parallel machine scheduling problemwith sequence dependent setup times

Vallada Regalado, Eva; Ruiz García, Rubén (Elsevier, 2011-06-16)

In this work a genetic algorithm is presented for the unrelated parallel machine scheduling problem in which machine and job sequence dependent setup times are considered. The proposed genetic algorithm includes a fast ...
A new vision of approximate methods for the permutation flowshop to minimise makespan: State-of-the-art and computational evaluation

Fernandez-Viagas, Victor; Ruiz García, Rubén; Framinan, Jose (Elsevier, 2017-03-16)

[EN] The permutation flowshop problem is a classic machine scheduling problem where n jobs must be processed on a set of m machines disposed in series and where each job must visit all machines in the same order. Many ...
A scatter search algorithm for the distributed permutation flowshop scheduling problem

Naderi, Bahman; Ruiz García, Rubén (Elsevier, 2014-12-01)

The distributed permutation flowshop problem has been recently proposed as a generalization of the regular flowshop setting where more than one factory is available to process jobs. Distributed manufacturing is a common ...
A study on the effect of the asymmetry on real capacitated vehicle routing problems

Rodríguez Villalobos, Alejandro; Ruiz García, Rubén (Elsevier, 2012-09)

Matrices with distances between pairs of locations are essential for solving vehicle routing problems like the Capacitated Vehicle Routing Problem (CVRP), Traveling Salesman Problem (TSP) and others. This work deals with ...
Allocating MapReduce workflows with deadlines to heterogeneous servers in a cloud data center

Wang, Jia; Li, Xiaoping; Ruiz García, Rubén; Xu, Hanchuan; Chu, Dianhui (Springer-Verlag, 2020-06)

[EN] Total profit is one of the most important factors to be considered from the perspective of resource providers. In this paper, an original MapReduce workflow scheduling with deadline and data locality is proposed to ...
An effective heuristic for project scheduling with resource availability cost

Zhu, Xia; Ruiz García, Rubén; Li, Shiyu; Li, Xiaoping (Elsevier, 2017-03-16)

[EN] The resource constrained project scheduling problem (RCPSP) is widely studied in the literature and has a host of applications in practice. As a variant of the RCPSP, the resource availability cost problem (RACP), ...
An effective iterated greedy algorithm for the mixed no-idle flowshop scheduling problem

Pan, Quan-Ke; Ruiz García, Rubén (Elsevier, 2014-04)

In the no-idle flowshop, machines cannot be idle after finishing one job and before starting the next one. Therefore, start times of jobs must be delayed to guarantee this constraint. In practice machines show this ...
An estimation of distribution algorithm for lot-streaming flow shop problems with setup times

Pan, Quan-Ke; Ruiz García, Rubén (Elsevier, 2012-04)

Lot-streaming flow shops have important applications in different industries including textile, plastic, chemical, semiconductor and many others. This paper considers an n-job m-machine lot-streaming flow shop scheduling ...
An Exact Algorithm for the Shortest Path Problem With Position-Based Learning Effects

Wang, Yamin; Li, Xiaoping; Ruiz García, Rubén (Institute of Electrical and Electronics Engineers, 2017-11)

[EN] The shortest path problems (SPPs) with learning effects (SPLEs) have many potential and interesting applications. However, at the same time they are very complex and have not been studied much in the literature. In ...
An iterated greedy heuristic for a market segmentation problem with multiple attributes

Huerta-Muñoz, D.L.; Ríos-Mercado, Roger Z.; Ruiz García, Rubén (Elsevier, 2017-08)

[EN] A real-world customer segmentation problem from a beverage distribution firm is addressed. The firm wants to partition a set of customers, who share geographical and marketing attributes, into segments according to ...
An Iterated Greedy Heuristic for Mixed No-Wait Flowshop Problems

Wang, Yamin; Li, Xiaoping; Ruiz García, Rubén; Sui, S. (Institute of Electrical and Electronics Engineers, 2018-05)

[EN] The mixed no-wait flowshop problem with both wait and no-wait constraints has many potential real-life applications. The problem can be regarded as a generalization of the traditional permutation flowshop and the ...
An iterated greedy heuristic for no-wait flow shops with sequence dependent setup times, learning and forgetting effects

Li, Xiaoping; Yang, Z.; Ruiz García, Rubén; Chen, T.; Sui, S. (Elsevier, 2018-07)

[EN] This paper addresses a sequence dependent setup times no-wait flowshop with learning and forgetting effects to minimize total flowtime. This problem is NP-hard and has never been considered before. A position-based ...
Analysis of the level of market penetration of terminal operating system at port container terminals in Spain

Demidova, Polina (Universitat Politècnica de València, 2021-04-13)

[EN] Operation of ports and their constant improvement of management is of vital importance for each economy of the country that has maritime connections. Today, with the expansion of multinational companies that transport ...
Análisis de la previsión de la demanda en la empresa Roquette Laisa España S.A

Gallo Mendez, Genesis (Universitat Politècnica de València, 2020-03-30)

[ES] La empresa Roquette Laisa España S.A. se enfrenta a un problema de estimación de la demanda de varias materias primas que utiliza tanto en la producción de producto final como en procesos internos de limpieza de ...
Análisis del Block Relocation Problem

García Lozano, Carlos (Universitat Politècnica de València, 2021-10-15)

[ES] El Block Relocation Problem es un problema de gran interés en la logística actual. Este problema consiste en minimizar el número de recolocaciones necesarias para extraer un conjunto de bloques apilados en un orden ...