(in italian)

**1i**) On the identification of the regularization parameter in ill-posed problems.

International Congress on Industrial and Applied Mathematics (ICIAM), Valencia (Spain), Jul 15-19, 2019.**2c**) On the identification of the regularization parameter in ill-posed problems.

Recent Advances in Scientific Computation (ETNA25), Santa Margherita di Pula (Italy), May 27-29, 2019.**3c**) Photometric Stereo under unknown light position.

The International Conference Mathematical Modeling with Applications (M2A19), Rabat (Morocco), Apr 1-4, 2019.**4i**) Minimization of the GCV function for Tikhonov Regularization.

SIAM Conference on Imaging Science, Bologna (Italy), Jun 5-8, 2018.**5i**)L'utilizzo della matematica nelle scienze applicate.

Workshop del Corso di Studi in Matematica, Cagliari (Italy), May 17-18, 2018.**6i**) On the computation of the GCV function for Tikhonov Regularization.

Householder Symposium XX on Numerical Linear Algebra, The Inn at Virginia Tech, Blacksburg (USA), Jun 18-23, 2017.**7i**) Block matrix formulations for evolving networks.

SIAM Conference on Computational Science and Engineering, Atlanta, Georgia (USA), Feb 27-March 3, 2017.**8i**) La matematica per lo studio dei sistemi complessi: i social networks (with Prof. Michele Benzi).

Progetto ''I Lincei per una nuova didattica nella scuola'' - Una rete nazionale, Cagliari (Italy), Dec 20, 2016.**9i**) Block Matrix Formulations for Evolving Networks.

Numerical Linear Algebra and Applications (NL2A), Luminy (France), October 24-28, 2016.**10i**) On the computation of the GCV function for Tikhonov regularization.

Bi-annual Conference of the Italian Society of Applied and Industrial Mathematics (SIMAI), Milano (Italy), September 13-16, 2016.**11i**) Block Matrix Formulations for Evolving Networks.

20th Conference of the International Linear Algebra Society (ILAS), KU Leuven (Belgium), July 11-15, 2016.**12i**) Frequency domain electromagnetic data inversion.

PING - Inverse Problems in Geophysics, Florence, April 6, 2016.**13i**) Metodi numerici per l'analisi delle reti complesse.

Conference of National Group of Scientific Computing (GNCS), Montecatini Terme (Italy), February 2-4, 2016.**14c**) On a nonlinear inverse problem in electromagnetic sounding.

SIAM Conference on Applied Linear Algebra, Atlanta, Georgia, USA, October 26-30, 2015.**15i**) Un problema inverso nonlineare in geofisica.

XX Congresso dell'Unione Matematica Italiana, Siena, Italy, September 7-12, 2015.**16i**) Fast Computation of Centrality Indices.

AIRO 2015 - 45th Annual Conference of the Italian Operations Research Society, Pisa, Italy, September 7-10, 2015.**17c**) Ranking nodes on Networks.

WAMC15 - Two Days on Applied Mathematics in Cagliari, Cagliari, Italy, April 9-10, 2015.**18i**) Analysis of directed networks via partial singular value decomposition.

SLA2014 - Structured Numerical Linear and Multilinear Algebra: Analysis, Algorithms and Applications, Kalamata, Greece, September 8-12, 2014.**19i**) Fast ranking of nodes on digraphs.

VDM60 - Nonlinear Evolution Equations and Linear Algebra, Cagliari, September 2-5, 2013.**20c**) Fast computation of centrality indices for complex networks.

SSMF2013 - International Spring School on Matrix Functions and their applications, Lille, France, May 15-17, 2013.**21c**) Fast computation of centrality indices in complex networks.

New Frontiers in Numerical Analysis and Scientific Computing, Kent, Ohio (USA), April 19-20, 2013.**22c**) Complex networks metrics for software systems.

2012 SIAM Conference on Applied Linear Algebra, Valencia, Spain, June 18-22, 2012.**23c**)Studio numerico di metriche per reti complesse.

Due giorni di Algebra Lineare Numerica, Genova, February 16-17, 2012.**24c**) Regularization techniques for the inversion of ground conductivity measurements.

SC2011 - International Conference on Scientific Computing, S. Margherita di Pula (CA), October 10-14, 2011.

- Numerical integration and inverse problems.

Retreat of the Aachen Insitute for Advanced Study in Computational Engineering Science - RWTH Aachen University, Hürtgenwald, Germany , October 5, 2016. - The use of numerical integration in the analysis of complex networks.

High Performance and Automatic Computing Group Meeting - RWTH Aachen University, Aachen, Germany, September 23, 2016. - Fast Computation of Centrality Indices.

Optimization & Numerical Analysis Seminars, University of Pisa, Pisa, November 26, 2015. - On a nonlinear inverse problem in electromagnetic sounding.

Emory University, Atlanta, USA, February 4, 2015. - Computation of matrix functions with application to networks theory.

Strathclyde University, Glasgow, UK, October 21, 2014. - Computation of matrix functions with application to networks theory.

University of Manchester, Manchester, UK, October 14, 2014. - Studio numerico di indicatori su reti complesse.

Seminari di Matematica, Cagliari, November 6, 2012.