Personale

Recapiti

Orario di ricevimento

Italiano

Biografia

Curriculum

Interessi

Note

Pubblicazioni

Insegnamenti

English

Biography

Curriculum

Interest

Note

Stefania BELLAVIA

Ruolo attuale:: Professore Ordinario
SSD:: MATH-05/A - Analisi numerica
Afferenza organizzativa:: Dipartimento di Ingegneria Industriale

Recapiti

	0552758683
	stefania.bellavia(AT)unifi.it

Ulteriori Recapiti

	c/o Centro Didattico Morgagni - Viale Morgagni 40/44 - 50134 Firenze
	https://sites.google.com/view/noda-research-group?pli=1

Stefania BELLAVIA

Orario di ricevimento (aggiornato al 30/08/2022)

Martedi 10.30-12.30

Stefania BELLAVIA

Biografia

Laureata in Matematica, nel 1993, con il massimo dei voti e Lode presso l'Università degli Studi di Firenze.
Dottorato di Ricerca in Matematica Computazionale e Informatica, del Consorzio delle Università
di Padova, Trieste, Bologna, Udine, dal 1994 al 1997.
Ha usufruito, (1998-1999), di una Borsa di Ricerca Senior erogata dall’Istituto Nazionale di Alta Matematica “Francesco Severi” (INdAM).
E' stata Ricercatrice Universitario presso la Facoltà di Scienze Matematiche Fisiche e Naturali dell’ Università degli Studi di Firenze, Settore scientifico-disciplinare, Analisi Numerica MAT08 (1999-2011)
E' stata Professoressa Associata presso l’Università degli Studi di Firenze, Dipartimento di Ingegneria Industriale. Settore scientifico-disciplinare: Analisi Numerica MAT08 (2011-2022), presso il Dipartimento di Ingegneria Industriale.
E' attualmente, dal 2022, Professoressa Ordinaria presso l’Università degli Studi di Firenze, Diparttimento di Ingegneria Industriale, nel settore MATH-05/A Analisi NumericaI ed è membro del gruppo di ricerca NODA del DIEF-UNIFI.

Stefania BELLAVIA

Curriculum

Dal 2002 svolge attività didattica nell'ambito del settore MAT08 nelle scuole di Scienze e di Ingegneria dell'Università di Firenze.
Membro del collegio di Dottorato in Ingegneria Industriale.
Membro dal 2005 dell'Editorial Board della rivista Applied and Numerical Mathematics, Elsevier.
Membro dal 2021 dell'Editorial Board della rivista Axiom, MDPI.
Membro dal 2021 dell'Editorial Board della rivista Journal of Computational Mathematics and Data Science, Elsevier.
Referente di Dipartimento per VQR e per il Sistema di Supporto alla Valutazione della Produzione Scientifica CRUI-UNIBAS
Referente stage e tirocini del Corso di Laurea magistrale in Matematica.
Presidente della commissione tirocini della Scuola di Scienze Matematiche Fisiche e Naturali.
Delegata Erasmus per il Corso di Laura Magistrale in Data Science, Calcolo Scientifico e Intelligenza Artificiale
Membro INDAM-GNCS
Referee per i progetti "Futuro in Ricerca 2010", MIUR, Italia e per agenzie di valutazione internazionali.
Coordinatrice dei seguenti progetti INDAM-GNCS: INDAM-GNCS 2014, "Metodi di Regolarizzazione per ottimizzazione; INDAM-GNCS 2015, "Metodi di Regolarizzazione per problemi di ottimizzazione e applicazioni"; INDAM-GNCS 2019, "Tecniche adattive per metodi di ottimizzazione in Machine Learning"; INDAM-GNCS 2025, "Ottimizzazione e Algebra Lineare Randomizzata".
E' stata coordinatrice del progetto di mobilità “Second order methods for opProgetto INDAM-GNCS 2019, "Tecniche adattive per metodi di ottimizzazione in Machine Learning". timisation problems in machine learning”. programma esecutivo di cooperazione Scientifica e Tecnologica Italia-Serbia per gli anni 2019-2021, Ministero degli Esteri.
Coordinatrice per il Dipartimento di Ingegneria Industriale dell'accordo di cooperazione culturale e scientifica fra l'Universita' di Firenze e l'Universita' di Novi Sad, Serbia.

Interessi di ricerca:

Metodi Numerici per problemi di ottimizzazione non lineare,
Metodi di algebra lineare per sistemi lineari in procedimenti di ottimizzazione,
Risoluzione numerica di problemi di ottimizzazione che nascono nell'ambito dell'apprendimento automatico.

Stefania BELLAVIA

Interessi

Interessi di ricerca:

- metodi Numerici per problemi di ottimizzazione non lineare,

- tecniche di precondizionamento per sistemi lineari in ottimizzazione,

- risoluzione di problemi di ottimizzazione che nascono nell'ambito dell'apprendimento automatico,

- metodi Interior Point.

Stefania BELLAVIA

Note

pagina web personale

Stefania BELLAVIA

Pubblicazioni

Legenda

Contributo su rivista |

Articolo su libro |

Libro |

Contributo in atti di convegno (proceeding) |

Brevetto |

Curatela | Altro

Altro |

Tesi di Dottorato

Bellavia, Stefania; Malaspina, Greta; Morini, Benedetta (2025). Inexact Gauss-Newton methods with matrix approximation by sampling for nonlinear least-squares and systems. MATHEMATICS OF COMPUTATION, pp. 0-0, ISSN:0025-5718 DOI

Bellavia S.; Krejic N.; Krklec Jerinkic N.; Raydan M. (2024). SLiSeS: subsampled line search spectral gradient method for finite sums. OPTIMIZATION METHODS & SOFTWARE, pp. 1-26, ISSN:1055-6788 DOI Accesso ONLINE all'editore

Argenti F.; Bellavia S.; Fontani M.; Guarnieri G.; Jerian M.; Limone A.; Rebegoldi S. (2024). A Proposed Workflow for the Restoration of Image Artifacts in Forensic Applications. IEEE ACCESS, vol. ..., pp. 0-0, ISSN:2169-3536 DOI

Stefania Bellavia, Benedetta Morini, Simone Rebegoldi (2024). An investigation of stochastic trust-region based algorithms for finite-sum minimization. OPTIMIZATION METHODS & SOFTWARE, vol. 39, pp. 937-966, ISSN:1055-6788 DOI

Bellavia S.; Gurioli G.; Morini B.; Toint P.L. (2023). The Impact of Noise on Evaluation Complexity: The Deterministic Trust-Region Case. JOURNAL OF OPTIMIZATION THEORY AND APPLICATIONS, vol. 196, pp. 700-729, ISSN:1573-2878 DOI

Silei, M; Bellavia, S; Superchi, F; Bianchini, A (2023). Recovering Corrupted Data in Wind Farm Measurements: A Matrix Completion Approach. ENERGIES, vol. 16, pp. 0-0, ISSN:1996-1073 DOI Accesso ONLINE all'editore

Stefania Bellavia, Tommaso Bianconcini, Natasa Krejic, Benedetta Morini (2023). Subsampled first-order optimization methods with applications in imaging. In: Ke Chen, Laurent Younes, Carola-Bibiane Schönlieb. Handbook of Mathematical Models and Algorithms in Computer, pp. 1-35 Springer Nature Switzerland AG. DOI Accesso ONLINE all'editore

Bellavia S.; Morini B.; Rebegoldi S. (2023). On the Convergence Properties of a Stochastic Trust-Region Method with Inexact Restoration. AXIOMS, vol. 12, pp. 38-38, ISSN:2075-1680 DOI

Stefania Bellavia; Serge Gratton; Benedetta Morini; Philippe Toint (2023). An optimally fast objective-function-free minimization algorithm using random subspaces. pp. 0-0 Accesso ONLINE all'editore

Stefania Bellavia, Natasa Krejic, Benedetta Morini, Simone Rebegoldi (2023). A stochastic first-order trust-region method with inexact restoration for finite-sum minimization. COMPUTATIONAL OPTIMIZATION AND APPLICATIONS, vol. 84, pp. 53-84, ISSN:1573-2894 DOI Accesso ONLINE all'editore

Stefania Bellavia; Eugenio Fabrizi; Benedetta Morini (2022). Linesearch Newton-CG methods for convex optimization with noise. ANNALI DELL'UNIVERSITÀ DI FERRARA. SCIENZE MATEMATICHE, vol. 68, pp. 0-0, ISSN:1827-1510 DOI Accesso ONLINE all'editore

STEFANIA BELLAVIA; GIANMARCO GURIOLI (2022). Stochastic analysis of an adaptive cubic regularization method under inexact gradient evaluations and dynamic Hessian accuracy.. OPTIMIZATION, vol. 71, pp. 227-261, ISSN:0233-1934 DOI Accesso ONLINE all'editore

Stefania Bellavia, Gianmarco Gurioli, Benedetta Morini, Philippe L. Toint (2022). Trust-region algorithms: probabilistic complexity and intrinsic noise with applications to subsampling techniques. EURO JOURNAL ON COMPUTATIONAL OPTIMIZATION, vol. 10, pp. 1-37, ISSN:2192-4406 DOI Accesso ONLINE all'editore

Bellavia S.; Gurioli G.; Morini B.; Toint P.L. (2022). Adaptive regularization for nonconvex optimization using inexact function values and randomly perturbed derivatives. JOURNAL OF COMPLEXITY, vol. 68, pp. 1-25, ISSN:0885-064X DOI Accesso ONLINE all'editore

Stefania Bellavia, Jacek Gondzio, Margherita Porcelli (2021). A Relaxed Interior Point Method for Low-Rank Semidefinite Programming Problems with Applications to Matrix Completion. JOURNAL OF SCIENTIFIC COMPUTING, vol. 89, pp. 0-0, ISSN:0885-7474 DOI Accesso ONLINE all'editore

Bellavia S.; Gurioli G.; Morini B.; Toint P.L. (2021). Quadratic and Cubic Regularisation Methods with Inexact function and Random Derivatives for Finite-Sum Minimisation. In: 21st International Conference on Computational Science and Its Applications, ICCSA 2021, ita, 2021, Institute of Electrical and Electronics Engineers Inc., pp. 258-267, ISBN:978-1-6654-5843-6 DOI

Stefania Bellavia, Gianmarco Gurioli, Benedetta Morini (2021). Adaptive cubic regularization methods with dynamic inexact Hessian information and applications to finite-sum minimization. IMA JOURNAL OF NUMERICAL ANALYSIS, vol. 41, pp. 764-799, ISSN:0272-4979 DOI

STEFANIA BELLAVIA, Natasa Krejic, Benedetta Morini (2020). Inexact restoration with subsampled trust‑region methods for finite‑sum minimization. COMPUTATIONAL OPTIMIZATION AND APPLICATIONS, vol. 73, pp. 701-736, ISSN:0926-6003 DOI Accesso ONLINE all'editore

STEFANIA BELLAVIA, Marco Donatelli, Elisa Riccietti (2020). An inexact non stationary Tikhonov procedure for large-scale nonlinear ill-posed problems. INVERSE PROBLEMS, vol. 36, pp. 0-0, ISSN:0266-5611 DOI

STEFANIA BELLAVIA, Nataša Krklec Jerinkić, Greta Malaspina (2020). Subsampled Nonmonotone Spectral Gradient Methods. COMMUNICATIONS IN APPLIED AND INDUSTRIAL MATHEMATICS, vol. 11, pp. 19-34, ISSN:2038-0909 DOI Accesso ONLINE all'editore

STEFANIA BELLAVIA, Natasa Krejic, Natasa Krklec Jerinkic (2020). Subsampled Inexact Newton methods for minimizing large sums of convex functions. IMA JOURNAL OF NUMERICAL ANALYSIS, vol. 40, pp. 2309-2341, ISSN:0272-4979 DOI Accesso ONLINE all'editore

Stefania Bellavia, Jacek Gondzio, Margherita Porcelli (2019). An inexact dual logarithmic barrier method for solving sparse semidefinite programs. MATHEMATICAL PROGRAMMING, vol. 178, pp. 109-143, ISSN:0025-5610 DOI

STEFANIA BELLAVIA, Margherita Porcelli, Jacek Gondzio (2019). IPLR_mc, Interior Point Low-Rank for Matrix Completion SDP reformulation..

Stefania Bellavia, Gianmarco Gurioli, Benedetta Morini, Philippe L. Toint (2019). Adaptive Regularization Algorithms with Inexact Evaluations for Nonconvex Optimization. SIAM JOURNAL ON OPTIMIZATION, vol. 29, pp. 2881-2915, ISSN:1052-6234 DOI Accesso ONLINE all'editore

Riccietti, E.; Bellavia, S.; Sello, S. (2019). Sequential Linear Programming and Particle Swarm Optimization for the optimization of energy districts. ENGINEERING OPTIMIZATION, vol. 51, pp. 84-100, ISSN:0305-215X DOI Accesso ONLINE all'editore

stefania bellavia, serge gratton, Elisa Riccietti (2018). A Levenberg-Marquardt method for large nonlinear least-squares problems with dynamic accuracy in functions and gradients. NUMERISCHE MATHEMATIK, vol. 140, pp. 791-825, ISSN:0029-599X DOI

Stefania Bellavia, Elisa Riccietti (2018). On an Elliptical Trust-Region Procedure for Ill-Posed Nonlinear Least-Squares Problems. JOURNAL OF OPTIMIZATION THEORY AND APPLICATIONS, vol. 178, pp. 824-859, ISSN:0022-3239 DOI

Bellavia Stefania; Riccietti Elisa; Sello Stefano (2017). Numerical methods for optimization problems arising in energetic districts. In: 19th European Conference on Mathematics for Industry, ECMI2016, Springer International Publishing, vol. 26, pp. 0-0, ISBN:978-3-319-63082-3

Stefania Bellavia, Natasa Krejic, Natasa Krklec Jerinkic (2017). Inexact Newton methods for minimizing large sums. In: 4th Conference on Optimization Methods and Software, Cuba, 16-20 Dicembre 2017, Weierstrass Institute for Applied Analysis and Stochastics, pp. 0-0.

Stefania, Bellavia; Lapo Governi; Alessandra, Papini; Luca Puggelli (2017). Regularized Quadratic Penalty methods for Shape from Shading. MEDITERRANEAN JOURNAL OF MATHEMATICS, vol. 14, pp. 0-0, ISSN:1660-5446 DOI

Bellavia, Stefania; Morini, Benedetta; Riccietti, Elisa (2016). On an adaptive regularization for ill-posed nonlinear systems and its trust-region implementation. COMPUTATIONAL OPTIMIZATION AND APPLICATIONS, vol. 64, pp. 1-30, ISSN:0926-6003 DOI

Bellavia, Stefania.; De Simone, Valentina; di Serafino, Daniela; Morini, Benedetta; (2016). On the update of constraint preconditioners for regularized KKT systems. COMPUTATIONAL OPTIMIZATION AND APPLICATIONS, vol. 65, pp. 339-360, ISSN:0926-6003 DOI

Stefania Bellavia; Sandra Pieraccini (2015). On affine scaling inexact dogleg methods for bound-constrained nonlinear systems. OPTIMIZATION METHODS & SOFTWARE, vol. 30, pp. 276-300, ISSN:1055-6788 DOI

Bellavia, Stefania; De Simone, Valentina; di Serafino Daniela; Morini, Benedetta (2015). Updating constraint preconditioners for KKT systems in quadratic programming via low-rank corrections. SIAM JOURNAL ON OPTIMIZATION, vol. 25, pp. 1787-1808, ISSN:1052-6234 DOI

Stefania Bellavia; Benedetta Morini (2015). Strong local convergence properties of adaptive regularized methods for nonlinear least-squares. IMA JOURNAL OF NUMERICAL ANALYSIS, vol. 35, pp. 947-968, ISSN:0272-4979 DOI

S. Bellavia; B. Morini; M. Porcelli (2014). New updates of incomplete LU factorizations and applications to large nonlinear systems. OPTIMIZATION METHODS & SOFTWARE, vol. 29, pp. 321-340, ISSN:1029-4937 DOI

Stefania Bellavia; Lapo Governi; Luca Puggelli; Alessandra Papini (2014). Quadratic Penalty Methods for Shape from Shading.. In: NumAn14, Applied Mathematics and Computer Lab Technical University of Crete, pp. 51-55, ISBN:9789608475212

Stefania Bellavia; Margherita Porcelli (2014). Preconditioning issues in the numerical solution of nonlinear equations and nonlinear least squares. PESQUISA OPERACIONAL, pp. 1-25, ISSN:0101-7438 DOI

S. Bellavia; J. Gondzio; B. Morini (2013). A matrix-free preconditioner for sparse symmetric positive definite systems and least-squares problems. SIAM JOURNAL ON SCIENTIFIC COMPUTING, vol. 35, pp. A192-A211, ISSN:1064-8275 DOI

S. Bellavia; M. Macconi; B. Morini (2012). Diagonally scaled dogleg methods for nonlinear systems with simple bounds,. In: Valentina De Simone, Daniela di Serafino, Gerardo Toraldo. Recent Advances in Nonlinear Optimization and Equilibrium Problems: A Tribute to Marco D'Apuzzo, pp. 17-40 ARACNE EDITRICE, ISBN:9788854856875.

S. BELLAVIA; S. PIERACCINI (2012). CODOSOL: a bound-constrained nonlinear equations solver.

S. Bellavia; M. Macconi; S. Pieraccini (2012). Constrained Dogleg Methods for nonlinear systems with simple bounds. COMPUTATIONAL OPTIMIZATION AND APPLICATIONS, vol. 53, pp. 771-794, ISSN:0926-6003 DOI

S. Bellavia; V. De Simone; D. di Serafino; B. Morini (2012). A preconditioning framework for sequences of diagonally modified linear systems arising in optimization. SIAM JOURNAL ON NUMERICAL ANALYSIS, vol. 50, pp. 3280-3302, ISSN:0036-1429 DOI

S. Bellavia; V. De Simone; D. di Serafino; B. Morini; (2012). Building preconditioners for sequences of linear systems arising in optimization. In: APMOD 2012, International Conference on Applied Mathematical Optimization and Modelling, pp. 17-22, ISBN:9783844817942

S.Bellavia; J.Gondzio; B.Morini (2011). Computational Experience with Numerical Methods for Nonnegative Least-Squares Problems. NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS, vol. 18, pp. 363-385, ISSN:1070-5325 DOI

S. Bellavia; S. Magheri; C. Miani (2011). Inexact Newton methods for model simulation. INTERNATIONAL JOURNAL OF COMPUTER MATHEMATICS, vol. 88, pp. 2969-2987, ISSN:0020-7160 DOI

S. Bellavia; V. De Simone; D. di Serafino; B. Morini (2011). Efficient preconditioner updates for shifted linear systems. SIAM JOURNAL ON SCIENTIFIC COMPUTING, vol. 33, pp. 1785-1809, ISSN:1064-8275 DOI

S. Bellavia, S. Magheri, C. Miani (2011). NGMS: Newton-GMRES for model simulation.

S. Bellavia; D. Bertaccini; B. Morini (2011). Nonsymmetric preconditioner updates in Newton-Krylov methods for nonlinear systems. SIAM JOURNAL ON SCIENTIFIC COMPUTING, vol. 33, pp. 2595-2619, ISSN:1064-8275 DOI

S. Bellavia; C. Cartis; N. I. M. Gould; B. Morini; Ph. L. Toint; (2010). Convergence of a Regularized Euclidean Residual Algorithm for Nonlinear Least-Squares. SIAM JOURNAL ON NUMERICAL ANALYSIS, vol. 48, pp. 1-29, ISSN:0036-1429 DOI Accesso ONLINE all'editore

S.Bellavia; D.Bertaccini; B.Morini (2010). Quasi matrix free preconditioners in optimization and nonlinear least-squares. In: ICNAAM, Numerical Analysis and Applied Mathematics, International Conference 2010, AMER INST PHYSICS, pp. 1036-1039. DOI

S. BELLAVIA; S. PIERACCINI (2009). Numerical solution of KKT systems in PDE-constrained optimization problems via the affine scaling trust region approach. INTERNATIONAL JOURNAL OF COMPUTER MATHEMATICS, vol. 86, pp. 2122-2142, ISSN:0020-7160 DOI

S. Bellavia; J. Gondzio; B. Morini (2009). Regularization and Preconditioning of KKT Systems Arising in Nonnegative Least-Squares Problems. NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS, vol. 16, pp. 39-61, ISSN:1070-5325 DOI Accesso ONLINE all'editore

S. Bellavia; M. Macconi; B. Morini (2007). A two-dimensional trust-region method for large scale bound-constrained nonlinear systems. In: 8th SIMAI Conference, World Scientific Publ Co Pte Ltd, Singapore, pp. 137-148, ISBN:9789812709387 DOI

S. BELLAVIA; S. BERRONE (2007). Globalization strategies for Newton-Krylov methods for stabilized FEM discretization of Navier-Stokes equations. JOURNAL OF COMPUTATIONAL PHYSICS, vol. 226, pp. 2317-2340, ISSN:0021-9991 DOI

BELLAVIA S; B. MORINI (2006). Subspace trust-region methods for large bound-constrained nonlinear equations. SIAM JOURNAL ON NUMERICAL ANALYSIS, vol. 44, pp. 1535-1555, ISSN:0036-1429 DOI

S. BELLAVIA; M. MACCONI; B. MORINI (2006). An interior point Newton-like method for nonnegative least squares problems with degenerate solution. NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS, vol. 13, pp. 825-846, ISSN:1070-5325 DOI

S. Bellavia; S. Lodi; B. Morini (2006). Inferences on Kernel density estimates by solving nonlinear systems. In: 18th International Conference on Scientific and Statistical Database Management, 2006, IEEE Computer Society, pp. 389-397, ISBN:0769525903 DOI

Stefania Bellavia; Benedetta Morini (2005). An interior global method for nonlinear systems with simple bounds. OPTIMIZATION METHODS & SOFTWARE, vol. 20, pp. 453-474, ISSN:1055-6788 DOI

S. Bellavia, B. Morini, M. Macconi (2004). STRSCNE.

B. MORINI; S. BELLAVIA; M. MACCONI (2004). STRSCNE: A scaled trust-region solver for constrained nonlinear equations. COMPUTATIONAL OPTIMIZATION AND APPLICATIONS, vol. 28, pp. 31-50, ISSN:0926-6003 DOI

S. BELLAVIA; S. PIERACCINI (2004). Convergence analysis of an Inexact Infeasible Interior Point method for Semidefinite Programming. COMPUTATIONAL OPTIMIZATION AND APPLICATIONS, vol. 29, pp. 289-313, ISSN:0926-6003 DOI

B. MORINI; S. BELLAVIA (2003). Global convergence enhancement of linesearch Interior Point Methods for MCPs. JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS, vol. 151, pp. 171-199, ISSN:0377-0427 DOI

BELLAVIA S.; MACCONI M.; B. MORINI (2003). An affine scaling trust-region approach to bound-constrained nonlinear systems.. APPLIED NUMERICAL MATHEMATICS, vol. 44, pp. 257-280, ISSN:0168-9274 DOI

M. Macconi; B. Morini; S. Bellavia (2002). Numerical solution of bound-constrained nonlinear systems in chemical engineering. In: International Conference on Scientific and Engineering Computation, IC-SEC 2002, vol. Recent Advances in Computational Science and Engineering, Proceedings of the International Conference on Scientific and Engineering Computation, IC-SEC 2002, pp. 41-44.

S. BELLAVIA; B. MORINI (2001). A globally convergent Newton-GMRES subspace method for systems of nonlinear equations. SIAM JOURNAL ON SCIENTIFIC COMPUTING, vol. 23, pp. 940-960, ISSN:1064-8275 DOI

B. MORINI; S. BELLAVIA (2001). A globalization strategy for Interior Point bound-constrained methods for mixed complementarity problems. In: High Performance Software for Nonlinear Optimization, 1997, Springer Netherlands, vol. 82, pp. 75-94, ISBN:1402075324

M.G. GASPARO; S. BELLAVIA (2001). THE NUMERICAL SOLUTION OF FINITE-DIMENSIONAL VARIATIONAL INEQUALITIES BY AN INTERIOR POINT METHOD. In: Giannessi, F.; Maugeri, A.; Pardalos, Panos M.. Equilibrium Problems: Nonsmooth Optimization and Variational Inequality Models, pp. 1-23, Dordrecht: Springer, ISBN:9781402001611.

B. MORINI; M. MACCONI; S. BELLAVIA (2000). A hybrid Newton-GMRES method for solving nonlinear equations. In: Second Conference on Numerical Analysis and Applications, 2000, Springer-Verlag Berlin Heidelberg, vol. 1988, pp. 68-75, ISBN:3540418148

S. BELLAVIA; M. MACCONI (1999). An Inexact Interior Point method for monotone NCP. OPTIMIZATION METHODS & SOFTWARE, vol. 11, pp. 211-241, ISSN:1055-6788 DOI

S. BELLAVIA (1999). Interior Point methods for MCP. RENDICONTI DEL CIRCOLO MATEMATICO DI PALERMO, vol. 58, pp. 9-19, ISSN:0009-725X

Bellavia, Stefania (1999). Inexact interior point methods for mixed nonlinear complementarity problems. BOLLETTINO DELL'UNIONE MATEMATICA ITALIANA. A, pp. 181-183, ISSN:0392-4033

S. BELLAVIA; M. MACCONI; B. MORINI (1998). The Switching-method in Multiple Shooting. COMPUTING, vol. 60, pp. 275-283, ISSN:0010-485X DOI

S. BELLAVIA (1998). Numerical Performance of an Inexact Interior Point Method. In: Leone, R. de; Murli, A.; Pardalos, P.M.; Toraldo, G.. High Performance Algorithms and Software in Nonlinear Optimization, pp. 43-51, Dordrecht: Springer Netherlands, ISBN:9780792354833.

S. BELLAVIA (1998). An Inexact Interior Point method. JOURNAL OF OPTIMIZATION THEORY AND APPLICATIONS, vol. 96, pp. 109-121, ISSN:0022-3239 DOI

S.BELLAVIA; M. MACCONI; B. MORINI (1997). Parallel performance of the SMS-Method on the Cray T3D. In: M.Voli. Science and Supercomputing at CINECA, pp. 430-435, Bologna: Tecnoprint, ISBN:9788886037037.

S. Bellavia; M. Macconi; B. Morini (1997). Parallel performances of a nonstandard multiple shooting,. SUPERCOMPUTER, vol. 13, pp. 45-56, ISSN:0168-7875

S. BELLAVIA ; M. G. GASPARO; M. MACCONI (1996). Partially updated switching method for systems of nonlinear equations.. JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS, vol. 76, pp. 77-88, ISSN:0377-0427 DOI

BELLAVIA S.; GASPARO M.G.; M. MACCONI (1996). A Switching Method for Nonlinear Systems. JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS, vol. 71, pp. 83-93, ISSN:0377-0427 DOI

Stefania BELLAVIA

Biography

Graduated in Mathematics in 1993 with top marks and honors from the University of Florence.
Ph.D. in Computational Mathematics and Computer Science from the Consortium of the Universities of Padua, Trieste, Bologna, and Udine (1994–1997).
She was awarded a Senior Research Fellowship (1998–1999) by the Istituto Nazionale di Alta Matematica “Francesco Severi” (INdAM).
She served as a University Researcher in Numerical Analysis (MAT08) at the Faculty of Mathematical, Physical, and Natural Sciences of the University of Florence (1999–2011).
From 2011 to 2022, she was an Associate Professor in Numerical Analysis (MAT08) at the Department of Industrial Engineering, University of Florence.
Since 2022, she has been a Full Professor at the Department of Industrial Engineering, University of Florence, in the field of Numerical Analysis (MATH-05/A) and is a member of the research group NODA at DIEF-UNIFI.

Stefania BELLAVIA

Curriculum

TEACHING AND PROFESSIONAL ACTIVITIES

Courses in Numerical Analysis and Optimization taught at University of Florence since 2002.

Member of the Scientific Committee (Collegio di Dottorato) of the Doctoral School on Industrial Engineering, University of Florence.

Department Delegate for VQR (Research Quality Assessment) and for the CRUI system for supporting the evaluation of scientific production.

Chair of the Internship and traineship Committeee for the Master's Degree Program in Mathematics.

Chair of the Internship Committeee of the School of Mathematical, Physical, and Natural Sciences.

Erasmus Delegate for the Master's Degree Program in Data Science, Scientific Computing, and Artificial Intelligence.

Member of the INDAM-GNCS (National Group for Scientific Computing, INdAM).

EDITORIAL AND SCIENTIFIC REFEREEING ACTIVITIES

Member of the Editorial Board of Applied and Numerical Mathematics, Elsevier, 2005-to present.

Member of the Editorial Board of Axiom, MDPI, 2021-to present.

Member of the Editorial Board of Journal of Computational Mathematics and Data Science, Elsevier, 2021-to present.

Referee for the evaluation of "Futuro in Ricerca 2010", MIUR, Italia and for International Funding Agencies.

Referee for the most important journals in optimization and Numerical analysis.

PROJECTS (PRINCIPAL INVESTIGATOR)
Progetto INDAM-GNCS 2014, "Metodi di Regolarizzazione per ottimizzazione vincolata".

Progetto INDAM-GNCS 2015, "Metodi di Regolarizzazione per problemi di ottimizzazione e applicazioni".

“Second order methods for optimisation problems in machine learning”, project for the exchange of researchers within the frame of the executive programme of Scientific and Technological cooperation between the Italian Republic and the Republic of Serbia for the years 2019-2021.

Progetto INDAM-GNCS 2019, "Tecniche adattive per metodi di ottimizzazione in Machine Learning".

Progetto INDAM-GNCS 2025, "Ottimizzazione e Algebra Lineare Randomizzata".

Coordinator for the Industrial Engineering department of Univ. of Florence of the agreement of cultural and scientific cooperation between the Univ. of Florence and Univ. of Novi Sad.

Research Interests:

Numerical methods for nonlinear optimisation problems.

Preconditioning techniques for linear systems in optimisation methods for large scale problems.

Numerical solution of optimisation problems arising in machine learning.

Stefania BELLAVIA

Interest

Numerical methods for nonlinear optimisation problems.

Preconditioning techniques for linear systems in optimisation methods for large scale problems.

Interior Point methods.

Numerical solution of optimisation problems arising in machine learning.

Stefania BELLAVIA

Note

personal web page

Area riservata