Search Results - "Frangioni, Antonio"

Approximated perspective relaxations: a project and lift approach by Frangioni, Antonio, Furini, Fabio, Gentile, Claudio

“…The perspective reformulation (PR) of a Mixed-Integer NonLinear Program with semi-continuous variables is obtained by replacing each term in the (separable)…”
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A storm of feasibility pumps for nonconvex MINLP by D’Ambrosio, Claudia, Frangioni, Antonio, Liberti, Leo, Lodi, Andrea

“…One of the foremost difficulties in solving Mixed-Integer Nonlinear Programs, either with exact or heuristic methods, is to find a feasible point. We address…”
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QPLIB: a library of quadratic programming instances by Furini, Fabio, Traversi, Emiliano, Belotti, Pietro, Frangioni, Antonio, Gleixner, Ambros, Gould, Nick, Liberti, Leo, Lodi, Andrea, Misener, Ruth, Mittelmann, Hans, Sahinidis, Nikolaos V., Vigerske, Stefan, Wiegele, Angelika

“…This paper describes a new instance library for quadratic programming (QP), i.e., the family of continuous and (mixed)-integer optimization problems where the…”
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SDP diagonalizations and perspective cuts for a class of nonseparable MIQP by Frangioni, Antonio, Gentile, Claudio

“…We present a new approach, requiring the solution of a SemiDefinite Program, for decomposing the Hessian of a nonseparable mixed-integer quadratic problem to…”
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Bundle-based relaxation methods for multicommodity capacitated fixed charge network design by Crainic, Teodor Gabriel, Frangioni, Antonio, Gendron, Bernard

“…To efficiently derive bounds for large-scale instances of the capacitated fixed-charge network design problem, Lagrangian relaxations appear promising. This…”
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Special issue on: Nonlinear and combinatorial methods for energy optimization by D’Ambrosio, Claudia, Frangioni, Antonio, Lodi, Andrea, Mevissen, Martin

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Optimal sizing of energy communities with fair revenue sharing and exit clauses: Value, role and business model of aggregators and users by Fioriti, Davide, Frangioni, Antonio, Poli, Davide

“…Energy communities (ECs) are essential tools to meet the Energy Transition goals but, to fully unleash their potential, they require a coordinated operation…”
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Bundle methods for sum-functions with “easy” components: applications to multicommodity network design by Frangioni, Antonio, Gorgone, Enrico

“…We propose a version of the bundle scheme for convex nondifferentiable optimization suitable for the case of a sum-function where some of the components are…”
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A bilevel programming approach to price decoupling in Pay-as-Clear markets, with application to day-ahead electricity markets by Frangioni, Antonio, Lacalandra, Fabrizio

“…Motivated by the recent crisis of the European electricity markets, we propose the concept of Segmented Pay-as-Clear (SPaC) market, introducing a new family of…”
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Stabilized Benders Methods for Large-Scale Combinatorial Optimization, with Application to Data Privacy by Baena, Daniel, Castro, Jordi, Frangioni, Antonio

“…The cell-suppression problem (CSP) is a very large mixed-integer linear problem arising in statistical disclosure control. However, CSP has the typical…”
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Structured pruning of neural networks for constraints learning by Cacciola, Matteo, Frangioni, Antonio, Lodi, Andrea

“…In recent years, the integration of Machine Learning (ML) models with Operation Research (OR) tools has gained popularity in applications such as cancer…”
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A stabilized structured Dantzig–Wolfe decomposition method by Frangioni, Antonio, Gendron, Bernard

“…We discuss an algorithmic scheme, which we call the stabilized structured Dantzig–Wolfe decomposition method, for solving large-scale structured linear…”
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0–1 reformulations of the multicommodity capacitated network design problem by Frangioni, Antonio, Gendron, Bernard

“…We study 0–1 reformulations of the multicommodity capacitated network design problem, which is usually modeled with general integer variables to represent…”
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Solving Nonlinear Single-Unit Commitment Problems with Ramping Constraints by Frangioni, Antonio, Gentile, Claudio

“…We present a dynamic programming algorithm for solving the single-unit commitment (1UC) problem with ramping constraints and arbitrary convex cost functions…”
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A MILP approach to DRAM access worst-case analysis by Andreozzi, Matteo, Frangioni, Antonio, Galli, Laura, Stea, Giovanni, Zippo, Raffaele

“…The Dynamic Random Access Memory (DRAM) is among the major points of contention in multi-core systems. We consider a challenging optimization problem arising…”
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A library for continuous convex separable quadratic knapsack problems by Frangioni, Antonio, Gorgone, Enrico

“…► We describe an open-source C++ library for the solution of convex continuous quadratic knapsack problems. ► The library revolves around an abstract base…”
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Comparing perspective reformulations for piecewise-convex optimization by Trindade, Renan Spencer, D'Ambrosio, Claudia, Frangioni, Antonio, Gentile, Claudio

“…We aim at generalizing formulations for non-convex piecewise-linear problems to mathematical programs whose non-convexities are only expressed in terms of…”
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Ellipsoidal classification via semidefinite programming by Astorino, Annabella, Frangioni, Antonio, Gorgone, Enrico, Manca, Benedetto

“…We propose a classification approach exploiting relationships between ellipsoidal separation and Support-vector Machine (SVM) with quadratic kernel. By adding…”
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A matheuristic for integrated timetabling and vehicle scheduling by Carosi, Samuela, Frangioni, Antonio, Galli, Laura, Girardi, Leopoldo, Vallese, Giuliano

“…•A new model for integrated timetabling (TT) and vehicle scheduling (VS).•First matheuristic for integrated TT and VS with regularity objective…”
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Improving the Approximated Projected Perspective Reformulation by dual information by Frangioni, Antonio, Furini, Fabio, Gentile, Claudio

“…We propose an improvement of the Approximated Projected Perspective Reformulation (AP2R) for dealing with constraints linking the binary variables. The new…”
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