Search Results - Classificació AMS::90 Operations research, mathematical programming::90C Mathematical programming

The Shared Customer Collaboration Vehicle Routing Problem by Fernández, Elena, Roca-Riu, Mireia, Speranza, M. Grazia

“…•We introduce the Shared Customer Collaboration Vehicle Routing Problem.•There are potential savings when carriers collaborate to serve shared customers.•Two…”
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An optimization‐based phase‐field method for continuous‐discontinuous crack propagation by Geelen, Rudy J. M., Liu, Yingjie, Dolbow, John E., Rodríguez-Ferran, Antonio

“…Summary A new continuous‐discontinuous strategy for the computational modeling of crack propagation within the context of phase‐field models of fracture is…”
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Minimum Spanning Trees with neighborhoods: Mathematical programming formulations and solution methods by Blanco, Víctor, Fernández, Elena, Puerto, Justo

“… are measured with a ℓq-norm. Two Mixed Integer Non Linear mathematical programming formulations are presented, based on alternative representations of subtour elimination constraints…”
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Association Between Time to Reperfusion and Outcome Is Primarily Driven by the Time From Imaging to Reperfusion by Ribo, Marc, Molina, Carlos A, Cobo, Erik, Cerdà, Neus, Tomasello, Alejandro, Quesada, Helena, De Miquel, Maria Angeles, Millan, Mónica, Castaño, Carlos, Urra, Xabier, Sanroman, Luis, Dàvalos, Antoni, Jovin, Tudor

“…A progressive decline in the odds of favorable outcome as time to reperfusion increases is well known. However, the impact of specific workflow intervals is…”
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The Flexible Periodic Vehicle Routing Problem by Archetti, Claudia, Fernández, Elena, Huerta-Muñoz, Diana L.

“…•A Mathematical model for the Flexible Periodic Vehicle Routing Problem (FPVRP) is proposed.•A Load-based formulation is developed to solve the FPVRP…”
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Nonintrusive proper generalised decomposition for parametrised incompressible flow problems in OpenFOAM by Tsiolakis, Vasileios, Giacomini, Matteo, Sevilla, Ruben, Othmer, Carsten, Huerta, Antonio

“…The computational cost of parametric studies currently represents the major limitation to the application of simulation-based engineering techniques in a daily…”
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Exact solution of hub network design problems with profits by Alibeyg, Armaghan, Contreras, Ivan, Fernández, Elena

“…•Study hub network design problems with profit-oriented objectives.•Simultaneous optimization of collected profit, setup and transportation costs.•A Lagrangian…”
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On the Collaboration Uncapacitated Arc Routing Problem by Fernández, Elena, Fontana, Dario, Speranza, M. Grazia

“…This paper introduces a new arc routing problem for the optimization of a collaboration scheme among carriers. This yields to the study of a profitable…”
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Parking slot assignment for urban distribution: Models and formulations by Roca-Riu, Mireia, Fernández, Elena, Estrada, Miquel

“… for urban distribution and we propose the use of mathematical programming formulations to model…”
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Hub network design problems with profits by Alibeyg, Armaghan, Contreras, Ivan, Fernández, Elena

“…•Alternative models and integer programming formulations proposed and analyzed.•Results from computational tests highlight the superiority for these models for decision-making…”
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A cutting-plane approach for large-scale capacitated multi-period facility location using a specialized interior-point method by Castro, Jordi, Nasini, Stefano, Saldanha-da-Gama, Francisco

“…We propose a cutting-plane approach (namely, Benders decomposition) for a class of capacitated multi-period facility location problems. The novelty of this…”
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Integrated approach to network design and frequency setting problem in railway rapid transit systems by López-Ramos, Francisco, Codina, Esteve, Marín, Ángel, Guarnaschelli, Armando

“… The Lexicographic Goal Programming technique is used to optimize them.•A set of candidate corridors to be assigned to new lines is previously determined by a constrained version…”
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Computing optimal shortcuts for networks by Garijo, Delia, Márquez, Alberto, Rodríguez, Natalia, Silveira, Rodrigo I.

“…•We study adding one segment to a plane Euclidean network to reduce its diameter.•An optimal segment can be found in polynomial time, but the running time is…”
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Finding the most sustainable wind farm sites with a hierarchical outranking decision aiding method by Afsordegan, Arayeh, Del Vasto-Terrientes, Luis, Valls, Aida, Agell, Núria, Sánchez, Mónica

“…This paper considers the problem of finding suitable sites for wind farms in a region of Catalonia (Spain). The evaluation criteria are structured into a…”
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A heuristic method for a congested capacitated transit assignment model with strategies by Codina, Esteve, Rosell, Francisca

“…•The capacitated congested strategy-based transit assignment is solved using an MSA method as result of its VI reformulation.•At each iteration a capacitated…”
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Ideal Hierarchical Secret Sharing Schemes by Farras, O., Padro, C.

“…Hierarchical secret sharing is among the most natural generalizations of threshold secret sharing, and it has attracted a lot of attention since the invention…”
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Phone and Video-Based Modalities of Central Blinded Adjudication of Modified Rankin Scores in an Endovascular Stroke Trial by López-Cancio, Elena, Salvat, Mercè, Cerdà, Neus, Jiménez, Marta, Codas, Javier, Llull, Laura, Boned, Sandra, Cano, Luis M, Lara, Blanca, Molina, Carlos, Cobo, Erik, Dávalos, Antoni, Jovin, Tudor G, Serena, Joaquín

“…The standard outcome measure in stroke research is modified Rankin scale (mRS) evaluated by local blinded investigators…”
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Fix-and-relax approaches for controlled tabular adjustment by Baena, Daniel, Castro, Jordi, González, José A.

“… CTA formulates a mixed integer linear programming problem, which is challenging for tables of moderate size…”
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Quadratic regularizations in an interior-point method for primal block-angular problems by Castro, Jordi, Cuesta, Jordi

“…One of the most efficient interior-point methods for some classes of primal block-angular problems solves the normal equations by a combination of Cholesky…”
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A consensus model for Delphi processes with linguistic terms and its application to chronic pain in neonates definition by Agell, Núria, van Ganzewinkel, Christ Jan, Sánchez, Mónica, Roselló, Llorenc, Prats, Francesc, Andriessen, Peter

“…[Display omitted] This paper proposes a new model of consensus based on linguistic terms to be implemented in Delphi processes. The model of consensus involves…”
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