2025

• Jul. 2025, "ReMU: Regional Minimal Updating for Model-Based Derivative-Free Optimization" in The 8th International Conference on Continuous Optimization (ICCOPT 2025) in Los Angeles, CA
  

• Jun. 2025, "A Family of Least Norm Under-determined Quadratic Models in DFO" in session Advances in Derivative-free and Zeroth-Order Optimization: Part V, stream Zeroth and first-order optimization methods (EUROPT 2025) in Southampton, United Kingdom
  

• Jun. 2025, "A New Model-Based Subspace Derivative-Free Optimization Method" in stream Continuous and mixed-integer nonlinear programming: theory and algorithms in EURO 2025 Leeds conference in Leeds, United Kingdom
  

• Mar. 2025, "ReMU: Regional Minimal Updating for Model-Based Derivative-Free Optimization" in SIAM Conference on Computational Science and Engineering (CSE25) in Fort Worth, TX
  

• Feb. 2025, "Interpolation-Based Trust-Region Methods for Black-Box Optimization " in Berkeley Lab CS Area Postdoc Symposium in Berkeley, CA
  video and news
  

2024

• Nov. 2024, "AI for Derivative-free optimization" in Berkeley Math PhD Talks in Berkeley, CA
  

• Oct., 2024, "Barycenter of Weight Coefficient Region of Least Weighted H^2 Norm Updating Quadratic Models with Vanishing Trust-region Radius" in The 1st SIAM Northern and Central California Sectional Conference (NCC24) in Merced, CA
  

• Jul. 21-26, 2024, "A New Two-Dimensional Model-Based Subspace Method for Large-Scale Unconstrained Derivative-Free Optimization: 2D-MoSub" in The 25th International Symposium on Mathematical Programming in Montréal, Canada
  

• Jul. 13, 2024, "A New Two-Dimensional Model-Based Subspace Method for Large-Scale Unconstrained Derivative-Free Optimization: 2D-MoSub" in Computational Mathematics and Applications Seminar in Mathematical Institute of University of Oxford, Oxford, United Kingdom
  

• Jan. 18, 2024, "A New Two-Dimensional Model-Based Subspace Method for Large-Scale Unconstrained Derivative-Free Optimization: 2D-MoSub"
  a talk at Lawrence Berkeley National Laboratory, Online, Talk's link at Computing Sciences Seminars of LBNL
  

2023

• Dec. 6, 2023, "A New Two-Dimensional Model-Based Subspace Method for Large-Scale Unconstrained Derivative-Free Optimization: 2D-MoSub"
  To deliver a talk at Argonne National Laboratory, Online, Talk's link at LANS Seminar
  

• Aug. 20-25, 2023, "DFO with Transformed Objectives and a Model-based Trust-region Method"
  Presented in ICIAM 2023 in Tokyo, Japan
  (Minisymposium of Derivative-Free Optimization Theory, Methods, and Software)
  (This is joint work with Prof. Ya-xiang Yuan)
  

• Aug. 15-18, 2023, "A New Model-based DFO Method Using an Improved Under-determined Model"
  Presented in The 14th International Conference on Numerical Optimization and Numerical Linear Algebra in Taiyuan, China
  (This is joint work with Prof. Ya-xiang Yuan)
  

• Jun. 1, 2023, "Trust-region Methods for Derivative-Free Optimization"
  (This is an invited talk @ University of South China.)
  

• Feb. 14, 2023, "Comparision of Quadratic Model Based Methods and Direct Search Methods for Derivative-Free Optimization"
  (This is joint work with Prof. Ya-xiang Yuan, and presented in the group seminar @ LSEC.
  

2022

• Nov. 19, 2022, Invited talk in CSIAM Student Forum, the 20th Annual Meeting of CSIAM
  

• Sept. 20, 2022, "Trust-region Subproblem Optimality Constraints for Under-determined Quadratic Model"
  (This is joint work with Prof. Ya-xiang Yuan, and presented in the seminar @ LSEC.)
  

• Mar. 22, 2022, "A Derivative-free Optimization Algorithm Based on Speeding-Up and Slowing-Down Direction and Trust Region Interpolation"
  (This is joint work with Prof. Ya-xiang Yuan, and presented in the group seminar @ LSEC.)
  Also presented in 2021 Mathematics Student Academic Forum in Chinese Academy of Sciences
  

2021

• Nov. 16, 2021, "Least H^2-norm Updating Quadratic Model for Derivative-free Trust-region Algorithms"
  (This is joint work with Prof. Ya-xiang Yuan, and presented in the group seminar @ LSEC.
  One can also see the video of the Plenary Talk by Prof. Ya-xiang Yuan in the 4th BRICS Mathematics Conference.), Dec., 2021
  

• Jul. 26, 2021, host the 10th CAS SIAM Student Chapter Annual Meeting (see news)

• May. 11, 2021, "Derivative-free Solver NEWUOA-P and Differentially Private Noise Adding Mechanisms for Private Black Box Optimization"
  (This is joint work with Prof. Ya-xiang Yuan, and presented in the seminar @ LSEC.)
  

• Apr. 17, 2021, "Derivative-free Optimization Solver for Grey-box Optimization Problems" [Link]
  (This is an invited talk @ Tsinghua University.)
  

2020

• Dec. 08, 2020, "Subspace Methods: Find the Dimension Balance between Approximation to Optimization Problem and Subproblem Solving" [Link]
  (This is joint work with Prof. Ya-xiang Yuan, and presented in the seminar @ LSEC.)