Conferences and Presentations

Upcoming conferences/meetings

• Aug. 15–20, 2021, Beijing, China, The 24th International Symposium on Mathematical Programming (ISMP 2021)

Conferences/Meetings that I am/was involved in the organization

• 2020, SIAM Conference on Optimization (OP20; it will not take place as scheduled due to COVID-19), Local Organizing Committee Member

• 2017, 2019, the 11th and 12th International Conference on Numerical Optimization and Numerical Linear Algebra (ICNONLA), Organizing Committee Member

• May 31–June 2, 2017, Hong Kong, China, The Third International Conference on Engineering and Computational Mathematics (ECM 2017), Workshop Co-chair (together with X. Liu, invited workshop on “Big Data Analysis with Applications”) [speaker list]

• Aug. 6–11, 2016, Tokyo, Japan, The Fifth International Conference on Continuous Optimization (ICCOPT 2016), Cluster Co-chair (together with F. Rinaldi, cluster on “Derivative-free and Simulation-based Optimization”) [speaker list]

• July 27– Aug. 1, 2013, Lisbon, Portugal, The Fourth International Conference on Continuous Optimization (ICCOPT 2013), Organizing Committee Member

• Sept. 26–29, 2011, Beijing, China, The Fifth Sino-Japan Optimization Meeting (SJOM 2011), secretary

Selected conference presentations

• Aug. 8, 2019, Berlin, Germany, The Sixth International Conference on Continuous Optimization (ICCOPT 2019), Trust-region methods based on inaccurate fisrt-order information, based on joint works with S. Gratton, C. W. Royer and L. N. Vicente

• July 15, 2019, Valencia, Spain, The 8th International Congress on Industrial and Applied Mathematics (ICIAM 2019), Trust-region methods based on inaccurate fisrt-order information, based on joint works with S. Gratton, C. W. Royer and L. N. Vicente

• July 5, 2018, Bordeaux, France, The 23rd International Symposium on Mathematical Programming (ISMP 2018), A space transformation framework for nonlinear optimization, invited-session talk, joint work with S. Gratton and L. N. Vicente

• June 22, 2018, Nanjing, China, 2018 International Workshop on Signal Processing, Optimization and Control (SPOC 2018), A continuous optimization model for clustering, invited talk, joint work with X. Liu, M. K. Ng, and R. Zhang

• June 30, 2017, Athens, Greece, Conference on Approximation and Optimization: Algorithms, Complexity, and Applications, A space transformation framework for nonlinear optimization, invited talk, joint work with S. Gratton and L. N. Vicente

• May 24, 2017, Vancouver, Canada, SIAM Conference on Optimization 2017 (OP17), A space transformation framework for nonlinear optimization, mini-symposium talk, joint work with S. Gratton and L. N. Vicente

• Aug. 8, 2016, Tokyo, Japan, The Fifth International Conference on Continuous Optimization (ICCOPT 2016), A space transformation framework for nonlinear optimization, invited-session talk, joint work with S. Gratton and L. N. Vicente

• Aug. 6, 2016, Beijing, China, International Conference on Numerical Analysis, Approximation and Optimization (ICNAAO 2016, a memorial conference dedicated to late Professor M. J. D. Powell FRS), “NEWUOAs: A Derivative-free Optimization Algorithm Based on Powell’s NEWUOA and Subspace Techniques (Is it possible to solve a 2000-dimensional optimization problem on a laptop without using derivatives?)”, contributed talk [slides]

• Aug. 12, 2015, Beijing, China, The Eighth International Congress on Industrial and Applied Mathematics (ICIAM 2015), “A subspace decomposition framework for nonlinear optimization”, mini-symposium talk, joint work with S. Gratton and L. N. Vicente

• Aug. 5, 2015, Yan'an, China, The Tenth International Conference on Numerical Optimization and Numerical Linear Algebra (ICNONLA 2015), “A subspace decomposition framework for nonlinear optimization”, contributed talk, joint work with S. Gratton and L. N. Vicente

• July 13, 2015, Pittsburgh, U.S., The 22nd International Symposium on Mathematical Programming (ISMP 2015), “A subspace decomposition framework for nonlinear optimization”, invited-session talk, joint work with S. Gratton and L. N. Vicente

• June 14, 2015, Montréal, Canada, The CORS/INFORMS 2015 Joint International Meeting, “A subspace decomposition framework for nonlinear optimization”, invited-session talk, joint work with S. Gratton and L. N. Vicente

• July 28, 2014, Guimarães, Portugal, Optimization 2014, “A subspace decomposition framework for nonlinear optimization”, invited-session talk, joint work with S. Gratton and L. N. Vicente

• July 17, 2014, Barcelona, Spain, The 20th Conference of the International Federation of Operational Research Societies (IFORS 2014), “Direct search based on probabilistic descent”, invited-session talk, joint work with S. Gratton, C. W. Royer, and L. N. Vicente [paper]

• May 22, 2014, San Diego, U.S., SIAM Conference on Optimization 2014 (OP14), “Direct search based on probabilistic descent”, mini-symposium talk, joint work with S. Gratton, C. W. Royer, and L. N. Vicente [paper]

• Sept. 12, 2013, Changchun, China, The Ninth International Conference on Numerical Optimization and Numerical Linear Algebra (ICNONLA 2013), “A subspace decomposition framework for nonlinear optimization: Global convergence and global rates”, contributed talk, joint work with S. Gratton and L. N. Vicente [slides]

• July 29, 2013, Lisbon, Portugal, The Fourth International Conference on Continuous Optimization (ICCOPT 2013), “A derivative-free optimization algorithm with low-dimensional subspace techniques for large-scale problems”, invited-session talk, based on section 5.3 of my thesis [slides]

• July 25, 2013, Toulouse, France, Recent Advances on Optimization (dedicated to Ph. Toint's 60th birthday), “A subspace decomposition framework for nonlinear optimization: Global convergence and global rates”, contributed talk, joint work with S. Gratton and L. N. Vicente

• Nov. 8, 2011, Xiamen, China, The Eighth International Conference on Numerical Optimization and Numerical Linear Algebra (ICNONLA 2011), “Sobolev seminorm of quadratic functions with applications to derivative-free optimization”, contributed talk [paper]

• Sept. 26, 2011, Beijing, China, The Fifth Sino-Japanese Optimization Meeting (SJOM 2011), “Sobolev seminorm of quadratic functions with applications to derivative-free optimization”, contributed talk [paper]

Selected seminar talks

• May. 13, 2020, LSEC, Beijing, China, “PDFO: Powell’s Derivative-Free Optimization Solvers with MATLAB and Python Interfaces”, online seminar talk (科学计算论坛之青年在线讲堂) invited by X. Liu [slides]

• Mar. 2, 2017, The Hong Kong Polytechnic University, Hong Kong, China, “Optimization using primary school mathematics”, The 12th “Mathematical and Statistical Salon” (MASS) talk

• Nov. 26, 2015, Rutherford Appleton Laboratory, Oxford, UK, “The worst case complexity of direct search and beyond”, seminar talk invited by the Numerical Analysis Group

• Aug. 18, 2015, LSEC, Beijing, China, “The worst case complexity of direct search and the (unexpected) mathematics in it”, seminar talk invited by Y. Liu [slides]

• Sept. 3, 2013, LSEC, Beijing, China, “Direct search based on probabilistic descent”, seminar talk invited by Y. Yuan [paper]