Managing ESG ratings disagreement in sustainable portfolio selection

F Cesarone, ML Martino, F Ricca, A Scozzari - Computers & Operations …, 2024 - Elsevier
In sustainable portfolio selection, investors have a twofold objective: they want to achieve
the best compromise between portfolio risk and return, but they also want to take into …

[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-price-and-cut procedure for the discrete ordered median problem

S Deleplanque, M Labbé, D Ponce… - INFORMS Journal on …, 2020 - pubsonline.informs.org
The discrete ordered median problem (DOMP) is formulated as a set-partitioning problem
using an exponential number of variables. Each variable corresponds to a set of demand …

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 …

Transitivity analysis of preference relations under the impact of indifferent voters

F Liu, MY Qiu, DH Zhou - Granular Computing, 2023 - Springer
Voting is a common way to reach consensus between decision makers with incompatible
opinions in a practical situation. Under the situation with indifferent voters, the pairwise …

Constraint relaxation for the discrete ordered median problem

LI Martínez-Merino, D Ponce, J Puerto - Top, 2023 - Springer
This paper compares different exact approaches to solve the Discrete Ordered Median
Problem (DOMP). In recent years, DOMP has been formulated using set packing constraints …

A risk-aversion approach for the Multiobjective Stochastic Programming problem

J León, J Puerto, B Vitoriano - Mathematics, 2020 - mdpi.com
Multiobjective stochastic programming is a field that is well suited to tackling problems that
arise in many fields: energy, financial, emergencies, among others; given that uncertainty …

Maximizing political vote in multiple districts

HA Eiselt, V Marianov - Socio-Economic Planning Sciences, 2020 - Elsevier
This paper models a resource allocation problem in the political context. Voters and political
candidates of two parties are positioned in each of n given electoral districts. We assume …

Goal programming approach for political districting in Santa Catarina State: Brazil

AK Hirose, CT Scarpin, JE Pécora Junior - Annals of Operations Research, 2020 - Springer
In the Brazilian judiciary, the Electoral Registry Offices (EROs) are responsible for managing
the Brazilian electoral districts. Moreover, not only do they organize elections in their district …

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

V Blanco Izquierdo, R Gázquez, D Ponce, J Puerto - 2022 - digibug.ugr.es
In this paper, we address the Continuous Multifacility Monotone Ordered Median Problem.
The goal of this problem is to locate facilities in minimizing a monotone ordered weighted …