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Browsing by Subject "Scheduling"

Now showing items 1-20 of 109

3GPP Long Term Evolution: Performance Analysis and Evolution towards 4G with Coordinated Multi-Point Transmission

Martín-Sacristán Gandía, David (Universitat Politècnica de València, 2016-05-02)

[EN] In today's information society, there is a growing need to access data communication services ubiquitously, with mobility and increasingly higher data rates. This society's demand has motivated the development of the ...
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 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 robust berth allocation and quay crane assignment

Rodríguez Molins, Mario; Ingolotti Hetter, Laura Paola; Barber Sanchís, Federico; Salido Gregorio, Miguel Angel; Sierra, María R.; Puente, Jorge (2014-07-01)

[EN] Scheduling problems usually obtain the optimal solutions assuming that the environment is deterministic. However, actually the environment is dynamic and uncertain. Thus, the initial data could change and the initial ...
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 GRASP-based metaheuristic for the Berth Allocation Problem and the Quay Crane Assignment Problem by managing vessel cargo holds

Rodríguez Molins, Mario; Salido Gregorio, Miguel Angel; Barber Sanchís, Federico (Springer Verlag (Germany), 2014-03)

Container terminals are open systems that generally serve as a transshipment zone between vessels and land vehicles. These terminals carry out a large number of planning and scheduling tasks. In this paper, we consider ...
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 ...
Addressing fairness in SMT multicores with a progress-aware scheduler

Feliu Pérez, Josué; Sahuquillo Borrás, Julio; Petit Martí, Salvador Vicente; Duato Marín, José Francisco (IEEE, 2015-05-25)

Current SMT (simultaneous multithreading) processors co-schedule jobs on the same core, thus sharing core resources like L1 caches. In SMT multicores, threads also compete among themselves for uncore resources like the LLC ...
ALGORITHM FOR MODELLING THE REMOVAL OF SNOW FROM STRECHES OF THE MANOEUVRING AERA OF AN AIRPORT

Marín Fernández, César; Gómez Comendador, Víctor Fernando; Arnaldo Valdés, Rosa María (Editorial Universitat Politècnica de València, 2016-06-01)

[EN] This article presents an algorithm and a structured methodology to address the issue of the optimisation of resources when clearing snow from stretches of the manoeuvring area of an airport. This overall issue is ...
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 ...
Análisis del sistema de triaje de un Hospital para la mejora de la eficacia en el departamento de urgencias

Gómez de Cádiz Maciá, Alejandra (Universitat Politècnica de València, 2020-06-30)

[EN] The emergency department (ED) is the initial medical care service for patients with health problems that put at risk the function of their organs, mental health or their lives, and therefore require immediate medical ...
Análisis y Compensación de los Retardos de Planificación en Sistemas de Control

Balbastre Betoret, Patricia; Lluesma, Manuel; Ripoll Ripoll, José Ismael (Universitat Politècnica de València, 2010-09-27)

[ES] Existe una separación entre la fase de diseño del regulador y su implementación en el computador de forma que, cada fase asume simplificaciones sobre la otra fase, lo cual lleva a un comportamiento inesperado o ...
Análisis y evaluación de los efectos de la distribución de tareas en una línea de montaje sin buffers entre estaciones a nivel operacional usando un modelo analítico

Dolz Cifre, Javier (Universitat Politècnica de València, 2021-02-23)

[EN] Task sharing helps to reduce imbalances in mixed-model lines, derived from blocking and starving stations. On the other hand, intelligent sequencing also gives us the possibility to face these waiting times and ...
Análisis y evaluación de politicas de planificación en sistemas multicore

Martínez Mas, Andrés (Universitat Politècnica de València, 2015-06-26)

[EN] This project is a study of scheduling policies of systems with temporal restrictions on partitioned systems in multicore architectures. For this study it is taken as a point of departure a system with partitions, where ...
Análisis y mejora del proceso de planificación y programación de la producción en una empresa dedicada a la congelación de productos de alimentación. Desarrollo de las herramientas necesarias

Verdeguer Villar, Jorge (Universitat Politècnica de València, 2021-10-13)

[ES] Este Trabajo de Fin de Máster aborda el proceso del departamento de Supply Chain de Ardo Benimodo, una empresa dedicada al procesado, congelación y comercialización de vegetales y otros productos congelados. Este ...
Aplicación de técnicas metaheurísticas a problemas de asignación de recursos

Pastor Pastor, Sergio Alejandro (Universitat Politècnica de València, 2016-11-03)

[EN] Resource assignment has been a complex issue since a long time ago because there is an infinite number of solutions and ways to generate them, although none of them is the best technique to employ. Instead, we have ...
Automatic Algorithm Design for Hybrid Flowshop Scheduling Problems

Alfaro-Fernandez, Pedro; Ruiz García, Rubén; Pagnozzi, Federico; Stützle, Thomas (Elsevier, 2020-05-01)

[EN] Industrial production scheduling problems are challenges that researchers have been trying to solve for decades. Many practical scheduling problems such as the hybrid flowshop are ATP-hard. As a result, researchers ...
Bi-objective parallel machine scheduling with additional resources during setups

Yepes-Borrero, Juan C.; Perea, Federico; Ruiz García, Rubén; Villa Juliá, Mª Fulgencia (Elsevier, 2021-07-16)

[EN] We present a bi-objective parallel machine scheduling problem with machine and job sequence dependent setup times, with the additional consideration of resources needed during setups. The availability of such resources ...
Cloud Workflow Scheduling with Deadlines and Time Slot Availability

Li, Xiaoping; Qian, L.; Ruiz García, Rubén (Institute of Electrical and Electronics Engineers, 2018-03)

[EN] Allocating service capacities in cloud computing is based on the assumption that they are unlimited and can be used at any time. However, available service capacities change with workload and cannot satisfy users' ...
Complete fuzzy scheduling and fuzzy earned value management in construction projects

Ponz Tienda, José Luis; Pellicer Armiñana, Eugenio; Yepes Piqueras, Víctor (Springer Verlag (Germany), 2012-01)

Complete fuzzy scheduling and fuzzy earned value management in construction projects Por: Luis Ponz-Tienda, Jose; Pellicer, Eugenio; Yepes, Victor JOURNAL OF ZHEJIANG UNIVERSITY-SCIENCE A Volumen: 13 Número: 1 Páginas: ...