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A hyper-solution framework for classification problems via metaheuristic approaches
This is a summary of the author’s PhD thesis, supervised by Prof. Domenico Conforti and defended on 26-02-2010 at the Universitá della Calabria,...
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Optimization methods for pipeline transportation of natural gas with variable specific gravity and compressibility
In this paper, the problem of flow maximization in pipeline systems for transmission of natural gas is addressed. We extend previously suggested...
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Minimizing the completion time of a project under resource constraints and feeding precedence relations: a Lagrangian relaxation based lower bound
In this paper we study the Resource Constrained Project Scheduling Problem (RCPSP) with “Feeding Precedence” (FP) constraints and minimum makespan...
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Locating a general minisum ‘circle’ on the plane
We approximate a set of given points in the plane by the boundary of a convex and symmetric set which is the unit circle of some norm. This...
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On the role of norm constraints in portfolio selection
Several optimization approaches for portfolio selection have been proposed in order to alleviate the estimation error in the optimal portfolio. Among...
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LocalSolver 1.x: a black-box local-search solver for 0-1 programming
This paper introduces LocalSolver 1.x, a black-box local-search solver for general 0-1 programming. This software allows OR practitioners to focus on...
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Exact and heuristic algorithms for routing problems
This is a summary of the authors PhD thesis supervised by Daniele Vigo and defended on 30 March 2010, at the Università di Bologna. The thesis is...
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Biased random-key genetic algorithms with applications in telecommunications
This paper surveys several applications of biased random-key genetic algorithms (BRKGA) in optimization problems that arise in telecommunications. We...
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Combinatorial and robust optimisation models and algorithms for railway applications
The following is a summary of the author’s Ph.D. thesis supervised by Alberto Caprara and Paolo Toth and defended on April 16, 2009 at the Università...
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Political districting: from classical models to recent approaches
The political districting problem has been studied since the 60’s and many different models and techniques have been proposed with the aim of...
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Optimization of SVM parameters for recognition of regulatory DNA sequences
Identification and recognition of specific functionally-important DNA sequence fragments such as regulatory sequences are considered the most...
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Optimization models and algorithms for the hyperplane clustering problem
This is a summary of the author’s PhD thesis supervised by Edoardo Amaldi and defended on 3 April 2009 at the Politecnico di Milano. The thesis is...
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Application-oriented mixed integer non-linear programming
This is a summary of the author’s PhD thesis supervised by Andrea Lodi and defended on 16 April 2009 at the University of Bologna. The thesis is...
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Operating room planning and scheduling: solving a surgical case sequencing problem
This text summarizes the PhD dissertation that was defended by the author in January 2009 under the supervision of Erik Demeulemeester at the...
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A gate reassignment framework for real time flight delays
Flight delays (such as early or late arrivals and late departures) are a frequent occurrence in actual day to day airport operations and it is often...
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Optimization and data mining in medicine
Mathematical theory of optimization has found many applications in the area of medicine over the last few decades. Several data analysis and decision...
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A model and two heuristic approaches for a forage harvester planning problem: a case study
This work considers a decision problem about orders of owners and routes of smallholdings for a harvester in an agricultural cooperative in which...
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Models and algorithms for combinatorial optimization problems arising in railway applications
This is a summary of the author’s PhD thesis supervised by Alberto Caprara and Paolo Toth and defended on 29 May 2007 at the Università di Bologna....
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Intensity modulated radiation therapy treatment plan optimization
In this paper, we provide an overview of the state-of-the-art of optimization models for static radiation therapy treatment planning, focusing in...
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Optimization of modular machining lines
The paper summarizes the main results of the author’s Ph.D. thesis presented in December 2006 at the École des Mines de Saint Étienne. The work was...