# Calendar

## 2024

Dec 10, 2024 | CHaRMNET team member Dr. Youngsoo Choi would attend Machine Learning and the Physical Sciences Workshop, NeurIPS 2024 and give talk on "Physics-informed reduced order model with conditional neural fields". |

Oct 22, 2024 | CHaRMNET team member Dr. Qi Tang gave an invited talk at MFEM Community Workshop 2024 about "An adaptive Newton-based free-boundary Grad–Shafranov solver". |

Oct 09, 2024 | CHaRMNET team member Dr. Youngsoo Choi organzied the Minisymposium at 1st SIAM Northern and Central California Sectional Conference (NCC24) and gave a talk titled "Train Small, Model Big: A Novel Data-Driven Scaleup for Large-Scale Physics Simulations". |

Oct 01, 2024 | CHaRMNET team member Dr. Jingwei Hu, was invited to give a talk titled "Structure-Preserving Dynamical Low-Rank Methods for Kinetic Equations of Plasmas"at Georgia Institute of Technology, School of CSE Seminar Series. |

Sep 25, 2024 | CHaRMNET team member Dr. Jingmei Qiu, was invited to gave a virtual talk at Journal of Computational Physics Seminar, titled "Low rank tensor approach for kinetic simulations". |

Sep 24, 2024 | CHaRMNET team member Dr. Youngsoo Choi, was invited to talk at POSTECH Mathematical Institute for Data Science (MinDS) seminar webinar, titled "LaSDI: latent space dynamics identification". |

Sep 20, 2024 | CHaRMNET team member Dr. Jingmei Qiu, gave an invited talk at Computational Science and Engineering Seminar, Georgia Institute of Technology, titled "Low rank tensor approach for kinetic simulations". |

Sep 18, 2024 | CHaRMNET team member Dr. David Bortz was invited to talk at Virginia Tech Mathematics Seminar virtually, titled "The Weak Form Is Stronger Than You Think". |

Sep 17, 2024 | CHaRMNET team member Dr. Youngsoo Choi gave an invited talk at Research Connection Speaker Series, Generative Assembly Design, Autodesk, titled "LaSDI: latent space dynamics identification". |

Sep 12, 2024 | CHaRMNET team member Dr. David Bortz was invited to give a virtual talk at NASA Langley Seminar titled "The Weak Form Is Stronger Than You Think". |

Sep 09, 2024 | CHaRMNET team member Dr. Youngsoo Choi gave an invited talk at Model reduction and surrogate modeling (MORe2024), titled "LaSDI: latent space dynamics identification". |

Sep 03, 2024 | CHaRMNET team member Dr. David Bortz gave a talk titled "The Weak Form Is Stronger Than You Think" at CU Space Weather Center of Excellence Seminar. |

Aug 19, 2024 | CHaRMENT team members Dr. David Bortz and Dr. DA Messenger attended Mathematical Theory of Networks and Systems conference at Cambridge, UK and presented their work, titled "Weak form system identification: Test function hyperparameters and unobserved variables" and "Weighted Composition Operators for Learning Nonlinear Dynamic Learning Nonlinear Dynamics". |

Jul 24, 2024 | CHaRMENT team member Dr. David Bortz was invited to give a talk at Penn State Applied Math Seminar, titled "The Surprising Robustness, Accuracy, and Computational Efficiency of Weak Form Operator Learning and System Identification". |

Jul 21, 2024 | CHaRMENT team members attended and presented 2 talks at the 16th World Congress on Computational Mechanics and 4th Pan American Congress on Computational Mechanics, Vancouver, British Columbia, Canada. Dr. Youngsoo Choi organzied a minisymposium at the conference. |

Jul 15, 2024 | CHaRMENT team member Dr. Yingda Cheng was invited to give Dahlquist Prize lecture at SciCADE 2024, titled "Sparse grid discontinuous Galerkin (DG) methods for high dimensional PDEs". |

Jul 10, 2024 | CHaRMENT CU-Boulder team was invited to talk at SIAM Annual Meeting Minisymposium about "Recent Advances in Weak Form-Based Data-Driven Modeling". |

Jul 01, 2024 | CHaRMENT team member Dr. Jingwei Hu was invited to talk at the 19th International Conference on Hyperbolic Problems, titled "Structure-Preserving Dynamical Low-Rank Methods for Kinetic Equations of Plasmas". |

Jun 25, 2024 | CHaRMENT team member Dr. David Bortz was invited to talk virtually at Stanford University ICME, titled "The Surprising Robustness, Accuracy, and Computational Efficiency of Weak Form Operator Learning and System Identification". |

Jun 20, 2024 | CHaRMENT team member Dr. Qi Tang talked at DOE FES AI/ML PI Meeting, titled "Surrogate modeling of collisional-radiative dynamics". |

Jun 16, 2024 | CHaRMNET Director, Dr. Andrew Christlieb gave plenary talk at The North American High Order Methods Conference, titled "The need for mathematical innovation around design and optimization of non-equilibrium plasmas". |

Jun 03, 2024 | CHaRMENT team member Dr. Youngsoo Choi gave an invited minisymposium talk at ECCOMAS 2024, titled "LaSDI: latent space dynamics identification". |

May 23, 2024 | CHaRMENT team members Dr. William T. Taitano and Joshua W. Burby presented at ORNL MiC Seminar Series, titled "Conditional Kinetics: A New Multiscale Framework for Kinetic Plasmas". |

May 12, 2024 | CHaRMENT team member Dr. Jingmei Qiu speaked at SIAM Linear algebra meeting about "Conservative Low Rank Algorithms for Nonlinear Kinetic Simulations". |

May 11, 2024 | CHaRMENT team member Dr. Youngsoo Choi talked at ICLR 2024 Workshop on AI4DifferentialEquations in Science about "Neural networks in data-driven reduced order models". |

May 08, 2024 | CHaRMENT team member Dr. David Bortz was invited to talk at Karlstad Applied Analysis seminar webinar, titled "The Surprising Robustness and Computational Efficiency of Weak Form System Identification". |

May 07, 2024 | CHaRMENT team member Dr. David Bortz gave an invited talk at ICERM Workshop: Interacting Particle Systems: Analysis, Control, Learning and Computation, titled "Recent Advances in Weak From-Based Learning of Interacting Particle Systems". |

May 01, 2024 | CHaRMENT team member Dr. Jingwei Hu was invited to talk at University of Massachusetts Amherst, Mathematics of Machine Learning Seminar. |

Apr 25, 2024 | CHaRMENT team member Dr. Lee Ricketson talked at International Conference on Multiscale Modeling and Simulation based on Physics and Data, titled "Implicit, asymptotic-preserving and energy-conserving time integration for charged particles in plasmas with arbitrary magnetization". |

Apr 22, 2024 | CHaRMENT Director Dr. Andrew Christlieb and team member Dr. Yingda Cheng were invited to talk at LANL Center for Nonlinear Studies Scale Bridging workshop, talks titled "Deep Learning Moment Closures for the BGK Equation" BY Dr. Christlieb and "Sparse grid discontinuous Galerkin (DG) methods for high dimensional PDEs" by Dr. Cheng. |

Apr 17, 2024 | CHaRMENT team members met at 18th Copper Mountain Conference On Iterative Methods, at CU-Boulder and gave 2 talks titled "Dynamic Low Rank for Thermal Radiative Transfer" by Dr. Terry Haut and "An adaptive Newton-based free-boundary Grad–Shafranov solver" by Dr. Qi Tang. |

Mar 26, 2024 | CHaRMENT team member CHaRMENT team members Dr. William T. Taitano and Joshua W. Burby talked at UNM Nuclear Engineering Seminar, titled "Conditional Kinetics: A New Multiscale Framework for Kinetic Plasmas". |

Mar 15, 2024 | CHaRMENT team member Dr. Steffen Schotthöfer presented at GAMM, titled "Structure-preserving neural networks for the regularized entropy-based closure of the Boltzmann moment system". |

Mar 01, 2024 | CHaRMENT team member Dr. Jingwei Hu was invited to talk at NYU Courant Institute of Mathematical Sciences, Mathematics Colloquium, titled "Structure-Preserving Particle Method for the Vlasov-Maxwell-Landau Equation". |

Feb 28, 2024 | CHaRMENT team member Dr. David Bortz was invited to Florida State Dept. of Scientific Computation colloquium and gave a talk about "The Surprising Robustness and Computational Efficiency of Weak Form System Identification". |

Feb 27, 2024 | CHaRMNET team members attend the SIAM Conference on Uncertainty Quantification (UQ24) at Trieste, Italy and gave 4 talks at the conference. |

Feb 19, 2024 | CHaRMNET team members attend the IMSI workshop on Computational Challenges and Optimization in Kinetic Plasma Physics at Chicago and gave 3 talks at the conference, titled "What it will take to do first principles optimal design of fusion" by A.J. Christlieb; "Implicit, asymptotic-preserving and energy-conserving time integration for particle-in-cell simulation of plasmas with arbitrary magnetization" by L. Ricketson, L. Chacon, O. Koshkarov, G. Chen and "Low rank tensor approach for kinetic simulations" by Jingmei Qiu. |

Feb 06, 2024 | CHaRMENT team member Dr. Youngsoo Choi talked at Numerical Analysis of Galerkin ROMs seminar series webinar, titled "Physics-guided & Interpretable data-driven simulations". |

Feb 05, 2024 | CHaRMENT team member Dr. Jingmei Qiu was invited to talk at Workshop on “Tensor Networks”, at IPAM, UCLA, titled "Low rank tensor approach for kinetic simulations". |

Jan 30, 2024 | CHaRMENT team member Dr. Youngsoo Choi talked at AI4Science AWS seminar by Amazon, titled "Physics-guided & Interpretable data-driven simulations". |

Jan 29, 2024 | CHaRMNET Director, Dr. Andrew Christlieb was invited to talk at Plasma Physics Seminar, University of Wisconsin, titled "Enabling first principal optimal design of fusion energy systems". |

Jan 19, 2024 | CHaRMENT team member Dr. Jingwei Hu gave a talk at North Carolina State University, Computational and Applied Mathematics Seminar, titled "Structure-Preserving Particle Method for the Vlasov-Maxwell-Landau Equation". |

Jan 09, 2024 | CHaRMNET team members attend Applied Mathematics and MMICCs Principal Investigator Meeting at Albuquerque, NM and gave 3 talks at the meeting on LaSDI and Data-driven finite element method (DD-FEM). |

## 2023

Dec 15, 2023 | CHaRMNET team members attended Machine Learning and the Physical Sciences Workshop, NeurIPS 2023 at New Orleans Ernest N. Morial Convention Center and gave 5 talks in the conference, titled "Accelerating Flow Simulations using Online Dynamic Mode Decomposition"; "Accelerating Kinetic Simulations of Electrostatic Plasmas with Reduced-Order Modeling"; "Data-Driven Autoencoder Numerical Solver with Uncertainty Quantification for Fast Physical Simulations"; "Nonlinear-manifold reduced order models with domain decomposition" and "Reduced-order modeling for parameterized PDEs via implicit neural representations". |

Dec 09, 2023 | CHaRMNET team member Dr. Jingmei Qiu was invited to Workshop "Recent Advances in Numerical Methods for Hyperbolic Conservation Laws" and gave a talk about "Low rank Time integrators for solving time-dependent PDEs". |

Dec 04, 2023 | CHaRMNET held annual meeting at MSU. |

Nov 30, 2023 | CHaRMNET team member Dr.Cory Hauck was invited to give a virtual talk at University of Utah Math Colloquium, titled "Kinetic Models of Particle Systems". |

Nov 20, 2023 | CHaRMNET team member Dr. Youngsoo Choi gave a talk, titled "Physics-guided interpretable data-driven simulations" on Second Workshop on Physics Enhancing Machine Learning in Applied Mechanics. |

Nov 16, 2023 | CHaRMNET team member Dr. Youngsoo Choi talked at National Academies Sciences Engineering Medicine (NASEM) Committee on Solid Earth GeophysicsFall 2023 Meeting, titled "Physics-guided & interpretable data-driven simulations". |

Nov 11, 2023 | CHaRMNET team member Dr. Cory Hauck was invited to give Plenary talk at Triangle Computational and Applied Mathematics Symposium, titled "Kinetic Models of Particle Systems". |

Oct 25, 2023 | CHaRMNET team member Dr. Luis Chacón gave an invited talk at 2023 Optimal Transport Workshop, titled "An implicit, conservative, asymptotic-preserving electrostatic particle-in-cell algorithm for arbitrary magnetic fields". |

Oct 18, 2023 | CHaRMNET team members Dr.Jingmei Qiu and Dr.Cory Hauck attend Workshop on Sparse Tensor Computations and gave 2 talks titled "Low rank Tensor Approximations to Kinetic Models" and "A semi-implicit, low-rank DG method for a kinetic model of radiation emission and absorption". |

Oct 13, 2023 | CHaRMNET team members Dr. Joshua William Burby led the LANL Workshop on structure preserving Fluid. CHaRMNET Director, Dr. Andrew Christlieb talked at the workshop about "Local hyperbolic machine learning moment closure models for the Boltzmann BGK equation". |

Oct 02, 2023 | Two CHaRMNET team members Dr. Jingmei Qiu and Dr. Jingwei Hu were invited to gave talks at Numerical analysis seminar, University of Maryland, titled "A Low Rank Tensor Approach for Nonlinear Vlasov Simulations" and "Dynamical low-rank methods for high-dimensional collisional kinetic equations". |

Sep 25, 2023 | CHaRMNET team member Dr. Jingmei Qiu gave a virtual talk about "A Low Rank Tensor Approach for Nonlinear Vlasov Simulations" at Journal of Computational Physics Seminar. |

Sep 18, 2023 | CHaRMNET team member Dr. Youngsoo Choi was invited to give a talk at Applied and Computational Mathematics Seminar, Georgia Tech, titled "Physics-guided interpretable data-driven simulations". |

Sep 01, 2023 | CHaRMNET team member Dr.Jingwei Hu was invited to give talk at PIMS Distinguished Colloquium, titled "Structure preserving particle method for the Vlasov-Landau-Maxwell equation", at University of Northern British Columbia, Canada |

Aug 30, 2023 | CHaRMENT team members held virtual meeting to discuss the recent team progress and Dr. Youngsoo Choi gave an talk titled "Interpretable & Physic-guided data-driven methods". |

Aug 20, 2023 | CHaRMNET team members attend ICIAM 2023 Tokyo. Dr. Youngsoo Choi, Dr. Lee Ricketson and Dr. David Bortz will give invited talks. |

Jul 23, 2023 | CHaRMNET team members attend and meet at 17th U. S. National Congress on Computational Mechanics 2023 and give 5 presentations on the meeting. |

Jun 05, 2023 | CHaRMNET team member Dr. John Jakeman gave a talk titled "Machine learning and uncertainty quantification for coupled multi-physics, multi-scale and multi-fidelity modelling" at Coupled 2023 Conference 2 minisymposium sessions, Crete, Greece. |

Jun 03, 2023 | CHaRMNET team members Dr. Tim Wildey and Dr. Youngsoo Choi, attend SIAM Conference on Optimization 2023 and give two talks at the conference. |

Jun 01, 2023 | CHaRMNET team member Dr. Lee Ricketson gave talk at University of Washington Seminar in Applied Mathematics, titled "An energy conserving and asymptotic-preserving time integrator for charged particle motion". |

May 22, 2023 | CHaRMNET team member Dr. Jingwei Hu gave an invited talk about "A conservative dynamical low-rank method for the Vlasov equation via a new macro-micro decomposition" at Workshop on Dynamical Low-rank Approximation held by EPFL, Lausanne, Switzerland. |

May 21, 2023 | IEEE 50th International Conference on Plasma Science was held at Santa Fe, New Mexico. Several CHaRMNET team members attended the meeting and gave 3 talks. |

May 17, 2023 | SIAM Applied Dynamical Systems conference was held at Portland, OR and CHaRMNET team members attended and gave 2 talks at the meeting. |

Apr 28, 2023 | CHaRMNET team member Dr. Jingwei Hu was invited to talk at Applied/PDE/Data Science Seminar Univeristy of California Santa Barbara, titled as "Dynamical low-rank methods for high-dimensional collisional kinetic equations". |

Apr 24, 2023 | CHaRMNET team member Dr. Jeff Hittinger gave an invited talk titled as "Plasma Physics Simulations in CASC" at the PECES PSAAP Center Technical Support Team Meeting, University of Texas, Austin. |

Apr 23, 2023 | CHaRMNET team member Dr. Yingda Cheng attended AMS Spring Central Sectional Meeting and gave two talks titled "A reduced basis method for radiative transfer equations" and "Sparse grid discontinuous Galerkin (DG) methods for high dimensional PDEs". |

Apr 21, 2023 | CHaRMNET team member Dr. Jeff Hittinger was invited to give a talk titled as "Is Fusion Our Future? Yes, but maybe not the way you think" on Research Computing Day, Center for Research Computing at Southern Methodist University |

Apr 20, 2023 | CHaRMNET team member Dr. John Jakeman gave a virtual talk about "Recent advances in multifidelity uncertainty quantification" at USACM virtual seminar series. |

Apr 11, 2023 | CHaRMNET team member Dr. Jingwei Hu attended International Workshop on Moment Methods in Kinetic Theory IV held at KIT, Karlsruhe, Germany and gave a talk about "Structure preserving particle method for the Vlasov-Landau-Maxwell equation". |

Apr 07, 2023 | CHaRMNET team member Dr. Youngsoo Choi was invited to give a talk at TAMIDS DTLS/SciML Lab Seminar held by Texas A&M University, titled "Physics-guided data-driven simulations". |

Apr 06, 2023 | CHaRMNET Director Dr. Andrew Christlieb gave an invited talk about "Taming The Curse of Dimensionality to Enable ‘First Principle’ Optimal Design in Fusion Energy" at the University of Washingtion, Applied Matheamtics Colloquium. |

Apr 06, 2023 | CHaRMNET team member Dr. Tim Wildey gave an invited talk in Inverse Problems Seminar at Colorado State University, titled as "Data-consistent Inversion: A collaborative presentation". |

Apr 03, 2023 | CHaRMNET team member Dr. John Jakeman gave a talk about "Multi-Fidelity Methods for Uncertainty Quantification and Optimization" at SIAM CSE 3 minsymposium sessions held at Amsterdam, NL. |

Mar 29, 2023 | CHaRMNET team member Dr. Youngsoo Choi gave a talk at AAAI Spring Symposium on Computational Approaches to Scientific Discovery about "Certified and parameterized latent space dynamics identification for time dependent image data" |

Mar 22, 2023 | CHaRMNET Director Dr. Andrew Christlieb was invited to Michigan Institute for Plasma Science and Engineering Colloquium held by University of Michigan and gave a talk titled "Moving to Address the Curse of Dimensionality to Enable ‘First Principle’ Optimal Design in Fusion System". |

Mar 13, 2023 | CHaRMNET team member Dr. David Bortz gave an invited talk in the Georgia Tech Applied and Computational Mathematics Seminar on "The Surprising Robustness and Computational Efficiency of Weak Form System Identification". |

Mar 10, 2023 | CHaRMNET team member Dr. Youngsoo Choi was invited to the Applied Math Seminar at Univeristy of California Santa Barbara and gave a talk about "Physic-guided data-driven simulations". |

Mar 01, 2023 | CHaRMNET team members attended 23rd SIAM Conference on Computational Science and Engineering. Dr. Luis Chacon, Dr. Stephen White, Dr. Andrew Christlieb and Dr. Sigal Gottlied gave talks. |

Feb 26, 2023 | CHaRMNET Director, Dr. Andrew Christlieb was invited to talk at SIAM Conference on Computational Science and Engineering, titled "Changes and advances in multi-scale modeling of plasmas". |

Feb 22, 2023 | CHaRMNET team member Dr. Lee Ricketson gave a talk about "Sparse and multiscale particle-in-cell methods for simulation of kinetic plasmas" at Oxford Applied Mathematics Seminar. |

Feb 21, 2023 | CHaRMNET team member Dr. David Bortz gave an invited talk in the Northwestern University Engineering Science and Applied Math colloquium on "The Surprising Robustness and Computational Efficiency of Weak Form System Identification". |

Feb 10, 2023 | CHaRMNET team member Dr. Luis Chacon was invited to gave a talk at the Univeristy of Michigan NERS Colloquium about "Modern multiscale kinetic algorithms for high-fidelity ICF capsule and hohlraum simulations" |

Feb 03, 2023 | CHaRMNET team member Dr. Youngsoo Choi gave an invited talk at San Diego State University Computational Research Leadership Council (CRLC) Seminar about "Physics constrained data-driven methods for accurately accelerating simulations". |

Feb 03, 2023 | CHaRMNET team member Dr. David Bortz gave an invited talk in the University of Washington NSF Dynamics of AI Institute Data-driven modeling seminar on "The Surprising Robustness and Computational Efficiency of Weak Form System Identification". |

Feb 03, 2023 | CHaRMNET team member Dr. Luis Chacon gave a talk about "Challenges and opportunities for high-fidelity non-equilibrium simulation of ICF fusion experiments" at Los Alamos National Lab Physics/Theory Colloquium. |

## 2022

Dec 13, 2022 | CHaRMNET team members, Dr. Jingwei Hu and Dr. Luis Chacon, were invited to the workship on kinetic and hyperbolic equations at Toulouse, France and gave invited talks. |

Dec 1-2 2022 | CHaRMNET will have a kick-off team meeting at LANL. |

Nov 30, 2022 | CHaRMNET Director Dr. Andrew Christlieb was invited to the Center for Nonlinear Studies Seminar Series at Los Alamos National Lab and gave a talk about "A new Particle-In-Cell method based on integral equations". |

Nov 14, 2022 | CHaRMNET team member Dr. Luis Chacon (LANL) will present a two-hour seminar to introduce the models and key limits in fusion applications. Time: 11:30-1:30 EST. Location: Zoom link |

Nov 04, 2022 | CHaRMNET team member Dr. Youngsoo Choi was invited to give a talk about "Interpretable and physics-constrained data-driven methods for physical simulations" at e-Seminar on Scientific Machine Learning held by University of Pittsburgh. |

Oct 20, 2022 | CHaRMNET team member Dr. Youngsoo Choi gave invited talk on ML/AI Engineering Cohort hands-on Workshop, titled "Interpretable and structure-preserving data-driven methods for physical simulations". |

Oct 20, 2022 | DOE is accepting applications for Computational Science Graduate Felloship CSGF. Established in 1991, the Department of Energy Computational Science Graduate Fellowship (DOE CSGF) provides outstanding benefits and opportunities to students pursuing doctoral degrees in fields that use high-performance computing to solve complex science and engineering problems. |

Oct 19, 2022 | CHaRMNET team member Dr. David Bortz gave an invited talk in the Tsinghua-BIMSA seminar on machine learning and differential equations on "Data-Driven Modeling and Learning Using the Weak Form". |

Oct 10, 2022 | CHaRMNET Director Dr. Andrew Christlieb gave an invited talk at University of Noter Dame, Applied and Computational Mathematics and Statistics Colloquium. |

Oct 08, 2022 | CHaRMNET Director Dr. Andrew Christlieb was invited to Workshop on Scientific Computing celebrate the 70th birthday of Professor Robert Krasny at Purdue University and gave a talk titled as "Method of lines transpose, O(N) A-stable methods". |

Sep 26, 2022 | CHaRMNET team members attended SIAM Conference on Mathematics of Data Science. Dr. David Bortz, Dr. Youngsoo Choi, Dr. John David Jakeman, and Dr. Tim Wildey gave invited talks. |

Aug 23, 2022 | CHaRMNET team member Dr. Jingwei Hu gave a invited talk at Simon Fraser University, Applied and Computational Math Seminar, Title: Dynamical low-rank methods for high-dimensional collisional kinetic equations; |

Aug 22, 2022 | CHaRMNET Director Dr. Andrew Christlieb gave a plenary talk at the role of advanced algorithms in understanding plasmas at the International Fusion and Plasma Conference. |

Jul 26, 2022 | CHaRMNET Director Dr. Andrew Christlieb gave an invited talk at International Conference on Scientific Computation and Differential Equations 2022, Titled as "Hyperbolic machine learning moment closure models for the Boltzmann BGK equation". |

Jun 21, 2022 | Congratulations to CHaRMNET member Dr. Luis Chacon (LANL) on his Ernest Orlando Lawrence Award. The EO Lawrence award is DOE’s highest honor for mid-career scientists. He was awarded "for seminal contributions in multiscale algorithms for fluid, kinetic, and hybrid simulation of plasmas, enabling scientific breakthroughs in fast magnetic reconnection and self-organization in magnetic fusion systems, and in reactivity degradation in inertial fusion systems". |