Regularization and optimization in model-based clustering Pattern Recognition – Volume 150, June 2024, 110310 Due to their conceptual simplicity, k-means algorithm variants have been extensively used for unsupervised cluster analysis. However, one main shortcoming of these algorithms is that they essentially fit a mixture of identical spherical Gaussians to data that vastly deviates from such…
AVALIAÇÃO DE IMPACTOS DE NOVAS TRANSPOSIÇÕES DE ÁGUAS PROPOSTAS PARA O RIO PARAÍBA DO SUL Recursos Hídricos: da teoria à prática (Livro), 2020 Um modelo computacional para simulação de bacias hidrográficas foi utilizado para investigar os impactos de eventuais transposições de água da bacia do Paraíba do Sul para o abastecimento da macrometrópole de São Paulo….
Informs Journal on Computing, 2023 BilevelJuMP.jl: Modeling and Solving Bilevel Optimization Problems in Julia In this paper, we present BilevelJuMP.jl, a new Julia package to support bilevel optimization within the JuMP framework. The package is a Julia library that enables the user to describe both upper and lower-level optimization problems using the JuMP algebraic syntax. Because…
Informs Journal on Computing, 2023 Flexible Differentiable Optimization via Model Transformations We introduce DiffOpt.jl, a Julia library to differentiate through the solution of optimization problems with respect to arbitrary parameters present in the objective and/or constraints. The library builds upon MathOptInterface, thus leveraging the rich ecosystem of solvers and composing well with modeling languages like…
SPRINGER LINK, 2023 JuMP 1.0: recent improvements to a modeling language for mathematical optimization JuMP is an algebraic modeling language embedded in the Julia programming language. JuMP allows users to model optimization problems of a variety of kinds, including linear programming, integer programming, conic optimization, semidefinite programming, and nonlinear programming, and handles the low-level details…
AVALIAÇÃO DE IMPACTOS DE NOVAS TRANSPOSIÇÕES DE ÁGUAS PROPOSTAS PARA O RIO PARAÍBA DO SUL Recursos Hídricos: da teoria à prática (Livro), 2020 Um modelo computacional para simulação de bacias hidrográficas foi utilizado para investigar os impactos de eventuais transposições de água da bacia do Paraíba do Sul para o abastecimento da macrometrópole de São Paulo….
Operation and Maintenance Contracts for Wind Turbines Green Energy and Technology, 2014 Owners of wind parks often outsource operation and maintenance (O&M) of their assets. This chapter addresses the fundamental negotiating issues of wind turbine O&M contracts. We develop a conceptual mathematical framework to support the analysis and design of O&M contracts. The framework is…
Representation of Wind and Load Correlation in Non-Sequential Monte Carlo Reliability Evaluation Reliability and Risk Evaluation of Wind Integrated Power Systems, 2013 Probabilistic reliability evaluation of power systems can be performed by two distinct representations of the system: state space and chronological simulation. In the state space representation, the system states are randomly sampled by…
Handbook of Networks in Power Systems II Energy Systems, 2012 This handbook is a continuation of our efforts to gather state-of-the-art research on power systems topics in Operations Research. Specifically, this handbook focuses on aspects of power system networks optimization and is, as such, a specialization of the broader “Handbook of Power Systems I &…
Handbook of Networks in Power Systems I Energy Systems, 2012 This handbook is a continuation of our efforts to gather state-of-the-art research on power systems topics in Operations Research. Specifically, this handbook focuses on aspects of power system networks optimization and is, as such, a specialization of the broader “Handbook of Power Systems I &…
