[HTML][HTML] Improved heuristics for solving large-scale Scanning Transmission Electron Microscopy image segmentation using the ordered median problem

JM Muñoz-Ocaña, J Puerto… - Computers & Operations …, 2024 - Elsevier
The discrete ordered median problem can be applied in a wide variety of areas. The
application of this problem in electron tomography image segmentation is currently being …

[HTML][HTML] Segmentation of scanning-transmission electron microscopy images using the ordered median problem

JJ Calvino, M López-Haro, JM Muñoz-Ocaña… - European Journal of …, 2022 - Elsevier
This paper presents new models for segmentation of 2D and 3D Scanning-Transmission
Electron Microscope images based on the ordered median function. The main advantage of …

[HTML][HTML] A branch-and-price approach for the continuous multifacility monotone ordered median problem

V Blanco, R Gázquez, D Ponce, J Puerto - European Journal of Operational …, 2023 - Elsevier
In this paper, we address the Continuous Multifacility Monotone Ordered Median Problem.
The goal of this problem is to locate p facilities in R d minimizing a monotone ordered …

A branch-and-price procedure for clustering data that are graph connected

S Benati, D Ponce, J Puerto… - European Journal of …, 2022 - Elsevier
This paper studies the Graph-Connected Clique-Partitioning Problem (GCCP), a clustering
optimization model in which units are characterized by both individual and relational data …

A fresh view on the discrete ordered median problem based on partial monotonicity

A Marín, D Ponce, J Puerto - European Journal of Operational Research, 2020 - Elsevier
This paper presents new results for the Discrete Ordered Median Problem (DOMP). It
exploits properties of k-sum optimization to derive specific formulations for the monotone …

[HTML][HTML] The Cooperative Maximal Covering Location Problem with ordered partial attractions

C Domínguez, R Gázquez, JM Morales… - Computers & Operations …, 2024 - Elsevier
Abstract The Maximal Covering Location Problem (MCLP) is a classical location problem
where a company maximizes the demand covered by placing a given number of facilities …

[HTML][HTML] Benders decomposition for the discrete ordered median problem

I Ljubić, MA Pozo, J Puerto, A Torrejón - European Journal of Operational …, 2024 - Elsevier
Ordered median optimization has been proven to be a powerful tool to generalize many well-
known problems from the literature. In Location Theory, the Discrete Ordered Median …

A comparative study of different formulations for the capacitated discrete ordered median problem

I Espejo, J Puerto, AM Rodríguez-Chía - Computers & Operations Research, 2021 - Elsevier
This paper deals with the capacitated version of discrete ordered median problems. We
present different formulations considering three-index variables or covering variables to …

[HTML][HTML] Mixed-integer linear programming formulations and column generation algorithms for the Minimum Normalized Cuts problem on networks

D Ponce, J Puerto, F Temprano - European Journal of Operational …, 2024 - Elsevier
This paper deals with the k-way normalized cut problem in complex networks. It presents a
methodology that uses mathematical optimization to provide mixed-integer linear …

[HTML][HTML] Revisiting a Cornuéjols-Nemhauser-Wolsey formulation for the p-median problem

A Agra, C Requejo - EURO Journal on Computational Optimization, 2024 - Elsevier
We revisit a formulation for the simple plant facility location and p-median problems
introduced by Cornuéjols, Nemhauser and Wolsey (1980). Despite being the smallest …