Talks

Invited talks & seminars

• 2025
  "Advances in Spectral Graph and Hypergraph Learning: towards more expressive Laplacian matrices", invited by Prof. S. Gualandi, Università di Pavia, Pavia, Italy.
• 2025
  "Graph and Hypergraph Learning via Complex- and Quaternion-Valued Spectral Convolutional Operators", keynote, 3rd Workshop of UMI Group Mathematics for AI and Machine Learning (MATH4AI), Bari, Italy.
• 2023
  "Integer programming and norm minimization (in machine learning?)", invited by Prof. P. Avella, Università del Sannio, Benevento, Italy.
• 2023
  "Bound-optimal cutting-plane generation", invited by G. Eichfelder, J. Kronqvist, A. Lodi, F. Oliveira, E. Rönnberg, Learning from Both Sides: Linear and Nonlinear Mixed-Integer Optimization, Institut Mittag-Leffler, Djursholm, Sweden.
• 2023
  "A Numerically-Exact Algorithm for the Bin Packing Problem", invited by Prof. L. Mariani, Università di Milano-Bicocca, Milan, Italy.
• 2022
  "Minimizing vector norms with integer programming", invited by Prof. S. Gualandi, Università di Pavia, Pavia (virtual).
• 2021
  "Integer programming and norm minimization for data science", invited by Prof. E. Messina, Università di Milano-Bicocca, Milan (virtual).
• 2019
  "Bilevel programming and the computation of pessimistic single-leader-multi-follower equilibria in Stackelberg games", invited by Dr. S. Toubaline, LAMSADE, Université Paris-Dauphine, Paris, France.
• 2019
  "The bin packing problem with item class setups", invited by Prof. E. Amaldi, Politecnico di Milano, Milan, Italy.
• 2019
  "Bilevel programming and the computation of pessimistic single-leader-multi-follower equilibria in Stackelberg games", invited by Dr. T. Oertel, Cardiff University, Department of Mathematics, Cardiff, UK.
• 2018
  "Computing Optimistic and Pessimistic Leader-Follower Equilibria with Multiple Followers", invited by Dr. R. Misener, Imperial College London, Department of Computing, London, UK.
• 2018
  "Network routing through the Internet as a Stackelberg game", invited by Prof. T. Ralphs, Lehigh University, Department of Industrial and Systems Engineering, Bethlehem, PA, USA.
• 2017
  "Exact single level and bilevel programming approaches to the computation of Leader-Follower Nash Equilibria in games with many followers", invited by Dr. L. Tran-Thanh, University of Southampton, AIC seminar series, Southampton, UK.
• 2017
  "Network routing through the Internet as a Stackelberg game", invited by Prof. H. Xu, CORMSIS Business Advisory Board meeting, University of Southampton, Southampton, UK.
• 2017
  "Exact single level and bilevel programming approaches to the computation of Leader-Follower Nash Equilibria in games with many followers", invited by Dr. S. Gualandi, Università di Pavia, Pavia, Italy.
• 2017
  "Network routing through the Internet as a Stackelberg game", invited by Prof. A. Koster, RWTH Aachen University, Aachen, Germany.
• 2016
  "Computing Leader-Follower Nash Equilibria in games with many followers via optimistic and pessimistic bilevel programming", invited by Prof. A. Koster, RWTH Aachen University, Aachen, Germany.
• 2016
  "On bilevel programming and the computation of Leader-Follower (Nash) Equilibria in games with many followers", invited by Prof. N. Gatti, Politecnico di Milano, Milan, Italy.
• 2015
  "(Bilevel programming and) bound-optimal cutting plane generation", invited by Prof. T. Ralphs, Lehigh University, Department of Industrial and Systems Engineering, Bethlehem, PA, USA.
• 2014
  "On the exact separation of rank inequalities for the maximum stable set problem", invited by Dr. F. D'Andreagiovanni, Zuse Institute Berlin (ZIB), Berlin, Germany.
• 2012
  "Coordinated cutting plane generation via multi-objective separation and extensions", invited by Prof. A. Koster, RWTH Aachen University, Aachen, Germany.
• 2011
  "Applications of exact mathematical programming", invited by Dr. M. Pozzi, Centro Elettronica Sperimentale Italiano (CESI), Milan, Italy.

Selected conference presentations

• 2025
  "Graph and Hypergraph Learning via Complex- and Quaternion-Valued Spectral Convolutional Operators", Economics Winter Seminar 2025, Castione della Presolana, Italy.
• 2024
  "Graph Learning in 4D: a Quaternion-valued Laplacian to Enhance Spectral GCNs", AAAI Conference on Artificial Intelligence (AAAI 2024), Vancouver, Canada.
• 2023
  "Bound-optimal cutting-plane generation" (with T. Ralphs), Learning from Both Sides, Institut Mittag-Leffler, Djursholm, Sweden.
• 2023
  "Mixed integer bilevel programming methods for solving pessimistic multi-follower bilevel problems over simplices", 1st International Conference on Bilevel Optimization (ICBO2023), Southampton, UK.
• 2022
  "A Numerically-Exact Algorithm for the Bin Packing Problem" (with R. Baldacci, F. Cordeau, F. Furini), EURO 2022, Espoo, Finland.
• 2021
  "Decomposition methods for maximizing a submodular function combined with a set-union operator" (with F. Furini, I. Ljubic), 3rd IMA/OR Society Conference, online.
• 2020
  "Private Bayesian Persuasion with Sequential Games" (with N. Celli, N. Gatti), AAAI Conference on Artificial Intelligence (AAAI 2020), New York, USA.
• 2019
  "Computing Optimal Ex Ante Correlated Equilibria in Two-Player Sequential Games" (with A. Celli, N. Gatti), AAMAS 2019, Montreal, Canada.
• 2018
  "Leadership in Singleton Congestion Games" (with A. Marchesi, N. Gatti), IJCAI 2018, Stockholm, Sweden.
• 2018
  "Computing Pessimistic Leader-Follower Equilibria with Multiple Followers (in the mixed-pure case)", ISMP 2018, Bordeaux, France.
• 2017
  "Using Mathematical Optimisation and Game Theory to improve the speed of broadband connections over the Internet" (poster), STEM for Britain, House of Commons, London, UK.
• 2017
  "Pessimistic Leader-Follower Equilibria with Multiple Followers" (with N. Gatti, A. Marchesi), IJCAI 2017, Melbourne, Australia.
• 2015
  "On the generation of cutting planes which maximize the bound improvement" (with M. Tieves), SEA 2015, Paris, France.
• 2014
  "Coordinated cutting plane generation via multi-objective separation", INFORMS Annual Meeting 2014, San Francisco, CA, USA.
• 2012
  "Spatial branch-and-bound for nonconvex Euclidean norm constrained mathematical programs" (with F. Margot), ISMP 2012, Berlin, Germany.
• 2010
  "Improving cutting plane generation with 0-1 inequalities by bi-criteria separation" (with E. Amaldi, S. Gualandi), SEA 2010, Naples, Italy.