[28] Humboldt "Sustainable Futures", San Francisco, USA, February 29 - March 02. 2024. Invited talk: Parametric images of three-tissue compartment kinetic modeling for distinguishing health and MASLD using total-body dynamic PET

[27] Society of Nuclear Medicine and Molecular Imaging Conference. Chicago, Illinosi, USA, June 24-27, 2023. Contributed talk: Total-body PET quantification of metabolism in non-alcoholic steatohepatitis using a three-tissue compartment model  

[26] International Conference on Partial Differential Equations and Applications. Hanoi, Vietnam, August 4-8, 2022. Invited talk: Energy functionals for coecient identication in PDEs: from distributed observation to boundary measurement

[25] Society of Nuclear Medicine and Molecular Imaging Conference. Vancouver, British Columbia Canada, June 11-14, 2022. Contributed talk: High-Temporal Resolution Kinetic Modeling on Total-Body PET Differentiates the Hepatic Interstitial Space in Nonalcoholic Fatty Liver Disease and Healthy Subjects 

[24] 10th International Conference "Inverse Problems: Modeling and Simulation". Malta, May 22-28, 2022. Invited talk:  Electrical impedance tomography with partial Cauchy data

[23] American Mathematical Society, Fall Western Sectional Meeting, University of New Mexico, Special Session on Recent Advances in Inverse Problems for PDEs, October 23-24, 2021. Invited talk: Diffuse optical tomography with incomplete and noisy Cauchy data

[22] Faculty of Mathematics, Informatics and Natural Sciences, University of Hamburg, Hamburg, Germany, January 23, 2020. Invited talk: Parameter identification problem in elliptic partial differential equations

[21] Department of Mathematics, Utrecht University, Utrecht, Netherlands, January 22, 2020. Invited talk: Total variation regularization for parameter identification problems in partial differential equations

[20] Department of Mathematical Engineering, ICTEAM Institute & Louvain School of Engineering. University of Louvain, Belgium, November 18-22, 2019. Invited talk: Parameter identification in elliptic PDEs from boundary data: finite element method with total variation regularization

[19] Institute of Mathematics and Scientific Computing, University of Graz, Graz, Austria, November 8, 2019. Invited talk: Energy functional methods with total variation regularization for coefficient identification problems: from distributed observations to boundary measurements

[18] Department of Applied Mathematics, University of Twente, Enschede, Netherlands, October 4, 2019. Invited talk: Computational methods for inverse problems in partial differential equations

[17] 9th International Congress on Industrial and Applied Mathematics. University of Valencia, Valencia, Spain, July 15-19, 2019. Invited talk: Reconstructing the source in elliptic systems: convergence analysis, convergence rates and a-posteriori error estimates using adaptive grid techniques

[16] 9th Applied Inverse Problems Conference. University of Grenoble Alpes, Grenoble, France, July 8-12, 2019. Invited talk: The convex energy functional method for the simultaneous parameter identification in elliptic PDEs 

[15] Workshop on Numerical Methods for Optimal Control and Inverse Problems. Technical University of Munich, Munich, Germany, March 11-13, 2019. Contributed talk: Iterated total variation regularization with finite element methods for reconstruction the source term in elliptic systems 

[14] The 1st Workshop on Inverse Problems. Ghent University, Ghent, Belgium, September 17-19, 2018. Invited talk: Total variation regularization with finite element methods and applications 

[13] IFIP TC 7 Conference on System Modelling and Optimization. Universität Duisburg-Essen, Essen, Germany, July 23-27, 2018. Invited talk: Variational method for multiple parameter identification in elliptic PDEs 

[12] 9th International Conference "Inverse Problems: Modeling and Simulation". Malta, May 21-25, 2018. Invited talk: Electrical impedance tomography with total variation regularization 

[11] 7th International Conference on High Performance Scientific Computing, Institute of Mathematics, Vietnam & University of Heidelberg, Germany - Joint Congress. Hanoi, Vietnam, March 19-23, 2018. Contributed talk: Identifying conductivity in electrical impedance tomography with total variation regularization 

[10] Institute for Numerical and Applied Mathematics, University of Goettingen, Goettingen, Germany, July 6, 2017. Invited talk: Total variation regularization for coefficient identification inverse problems in partial differential equations

[09]  15th Workshop on Optimization and Scientific Computing, Institute of Mathematics, Vietnam Academy of Science and Technology and Vietnam Institute for Advanced Studies in Mathematics. Ba Vi, Vietnam, April 20-22, 2017. Contributed talk: Numerical Identification for Independent Coefficients in Elliptic PDEs

[08] Young Researchers Meeting & Computational Science and Engineering Workshop. Plön, Germany, March 21-24, 2017. Contributed talk: Inverse source problem in elliptic equations from boundary observations 

[07] Gesellschaft für Angewandte Mathematik und Mechanik. Bahaus Universität and Technische Universität Weimar, Germany, March 6-10, 2017. Contributed talk: Independent parameter identification in elliptic partial differential equations 

[06] IFIP Workshop: Optimal Control Meets Inverse Problems. Universität Duisburg-Essen, Essen, Germany, September 5-9, 2016. Contributed talk: Variational method for reconstruction source and state in elliptic systems from boundary observations 

[05] Young Researchers Meeting & Computational Science and Engineering Workshop. Plön, Germany, March 21-24, 2016. Contributed talk: Parameter identification in partial differential equations 

[04] Gesellschaft für Angewandte Mathematik und Mechanik. Technische Universität Braunschweig, Germany, March 7-11, 2016. Contributed talk: Energy functional approach for identifying simultaneously the diffusion matrix, reaction coefficient and source term in an elliptic PDE 

[03] Jahrestagung der Deutschen Mathematiker Vereinigung. Universität Hamburg, Germany, September 21-25, 2015. Contributed talk: Matrix coefficient identification in an elliptic equation

[02] Universität Bremen, Alexander von Humboldt Foundation Conference, Germany, April 15-17, 2015. Invited talk: Computational methods for coefficient inverse problems in partial differential equations 

[01] Vietnam Mathematical Society - French Mathematical Society Joint Congress. University of Hue, Vietnam, August 20-24, 2012. Contributed talk: Convergence rates for the Tikhonov regularization of a coefficient identification problem in an elliptic boundary value problem