Talks

R. Campagna (Joint with V. Bruni, D. Vitulano), "P-spline approximation for instantaneous frequency estimation of non-stationary signals",  Dolomites Research Week on Approximation and Applications, S. Vito di Cadore (BL) - Italy, 15-19 September 2023

R. Campagna (Joint with V. Bruni, D. Vitulano), "MultiComponent Signals Interference Detection exploiting HP-splines frequency parameter", 21st IMACS World Congress University of Rome 'La Sapienza', Italy, September 11-15, 2023

R. Campagna (Joint with S. Crisci, G. Toraldo, G. Santin, M. Viola), "An algorithm for a Constrained P-spline", International Conference on Approximation Theory and Applications, Cetraro, Italy, 18-22 June, 2023 

R. Campagna (Joint with C. Conti and S. Cuomo), "Hyperbolic-polynomial P-splines: who, what, why", 6th IM-Workshop on Applied Approximation, Signals and Images, IM-Workshop Bernried 2023, Bernried, Germany, February 20 - 24, 2023

R. Campagna (Joint with C. Conti and S. Cuomo), "A linear algebra approach to HP-splines frequency parameter selection", Approximation: Theory, Methods and Applications, ATMA2023, Padova, Italy, January 18-20, 2023

R. Campagna (Joint with G. Toraldo), "An algorithm for non negative P-splines", Third International Conference on Subdivision, Geometric and Algebraic Methods, Isogeometric Analysis and Refinability in ITaly, SMART2022, Rimini, Italy, September 20-24, 2022

R. Campagna (Joint with G. Toraldo), "An algorithm for constrained regression by penalized splines", Functional Analysis, Approximation Theory and Numerical Analysis, Matera, FAATNA20>22, Italy, July 5-8, 2022

R. Campagna (Joint with C. Conti), "Hyperbolic-polynomial penalized splines: existence, uniqueness, and reproduction properties", Curves and Surfaces 2022, June 20th - 24th, 2022, Arcachon, France

R. Campagna (Joint with C. Conti), "Linear Algebra of HP-splines", Two Days of Numerical Linear Algebra and Applications, February 14-15, 2022, Naples, Italy

R. Campagna (Joint with S. De Marchi, E. Perracchione, G. Santin), "Greedy Selection for Learning by Exponential Splines",  5th Dolomites Workshop on Constructive Approximation and Applications, Virtual conference, September 6-10, 2021

R. Campagna (Joint with C. Conti), "Penalized hyperbolic-polynomial splines", SIMAI 2020+2021 Conference, 30 August - 3 September 2021, Parma (Italy)

R. Campagna (Joint with E. Perracchione), "Data-driven extrapolation via feature augmentation for multi-exponential decay curves",  SIMAI 2020+2021 Conference, 30 August - 3 September 2021, Parma (Italy)

R. Campagna  (Joint with C. Conti),  "Penalized hyperbolic-polynomial splines", Prima giornata di lavoro del Gruppo U.M.I. T.A.A. [GL(GL)](TAA), May 14, 2021, Virtual Conference

R. Campagna (Joint with S. De Marchi, E. Perracchione, G. Santin), "Greedy Selection for Learning by Smoothing Splines", SIAM Conference on Computational Science and Engineering (CSE21), March 1 - 5, 2021 Virtual Conference - Originally scheduled in Fort Worth, Texas, U.S.

R. Campagna (Joint with E. Perracchione), "Feature augmentation for numerical inversion of multi-exponential decay curves", 18th International Conference of Numerical Analysis and Applied Mathematics (ICNAAM 2020), 17-23 September 2020, Rhodes, Greece

R. Campagna (Joint with V. Bayona, S. Cuomo), “Inverting Laplace Transform by a performing RBF-based fitting model”, MATA2020, Multivariate Approximation: Theory and Applications 16-18 gennaio, 2020 Perugia, Italia.

 R. Campagna (Joint with S. Cuomo, F. Dell’Accio, F. Di Tommaso), “On the numerical stability of multinode Shepard operators” (Poster) MATA2020, Multivariate Approximation: Theory and Applications 16-18 gennaio, 2020 Perugia, Italia.

R. Campagna (Joint with V. Bayona, S. Cuomo), “Toward a RBF-based fitting model in the Laplace Transform Inversion framework” (Poster) Dolomites ResearchWeek on Approximation - DRWA19 Alba di Canazei, Italy, September 2-6, 2019.

R. Campagna   (Joint with C. Conti, S. Cuomo), “Laplace Transform Inversion for multiexponential decay data by smoothing L-splines”, “The 3rd International Conference and Summer School Numerical Computations: Theory and Algorithms, NUMTA 2019”, Le Castella di Isola Capo Rizzuto, Italy, June 15-21, 2019.  

 R. Campagna (Joint with A. Romano, P. Masi and G. Toraldo), “Numerical approach for NMR-based analysis of water mobility in wheat flour dough, “The 3rd International Conference and Summer School Numerical Computations: Theory and Algorithms, NUMTA 2019”, Le Castella di Isola Capo Rizzuto, Italy, June 15-21, 2019. 

R. Campagna (Joint with C. Conti, S. Cuomo), “Laplace Transform Inversion for multiexponential decay data by smoothing L-splines”, Approssimazione Multivariata: Teoria ed Applicazioni, AMTA 2019, 24-26 gennaio, Napoli, Italia

R. Campagna (Joint with S. Cuomo, S. De Marchi, L. Ferrara, E. Perracchione and G. Toraldo), “A robust meshfree PDE solver for source-type flows in porous media”, IWANASP18, International Workshop on Analysis and Numerical Approximation of Singular Problems, Cagliari, September 4-6, 2018

R. Campagna (Joint with S. Cuomo, S. De Marchi, L. Ferrara, E. Perracchione and G. Severino) “A robust meshfree PDE solver for source-type flows in porous media” (advancements), (Talk and Poster) Dolomites Research Week on Approximation - DRWA’18 Alba di Canazei, Italy, September 10-14, 2018

R. Campagna (Joint with S. Cuomo, P. Masi, A. Romano and Gerardo Toraldo), “Data-driven approaches to predict states in a Food Technology case study” , (Poster) Dolomites ResearchWeek on Approximation - DRWA18Alba di Canazei, Italy, September 10-14, 2018

  R. Campagna (Joint with S. Crisci, S. Cuomo, A. Galletti and L. Marcellino), “A second order derivative scheme for the Bregman Algorithm class” (June, 20), “The 2nd International Conference and Summer School NUMTA 2016, Numerical Computations: Theory And Algorithms”, Pizzo Calabro, Italy, 19–25  June 2016. 

  R. Campagna (Joint with L. D'Amore, A. Galletti, A. Murli), “On the numerical approximation of the Laplace Transform function from real samples and its inversion”, International Conference “ENUMATH 2009", Uppsala,   Svezia, 29 giugno - 3 luglio, 2009.

  R. Campagna (Joint with  L. Carracciuolo, L. D'Amore, A. Murli), “Un software parallelo per l'inversione di dati 3D SPECT” (Poster), Conferenza Nazionale: “Italian e-Science 2008 - IES08", Napoli - Italia, 27-29 Maggio 2008.

 R. Campagna (Joint with D'Amore, A. Murli), “Inversione numerica della trasformata di Laplace nota su un insieme finito di campioni reali”, XVIII Congresso U.M.I. - Unione Matematica Italiana, Bari - Italia, 24-29 Settembre 2007.

  R. Campagna (Joint with  L. D'Amore, A. Murli), “On the regularization of preconditioned GMRES in a Fourier-series based method for real Inversion of Laplace Transform”, Workshop GNCS - INDAM “Applied Inverse problems, medical imaging and astronomy", Ischia (Na) - Italia, 27-28 ottobre 2005.

R. Campagna, “On the regularization effects of the GMRES algorithm in a Fourier-series based method for numerically inverting a Laplace transform function in the real case" (Poster), Conference “Numerical Analysis: the State of the Art - NAC2005", Rende (CS) - Italia, 19-21 Maggio 2005.