Invited Presentations/Conferences Organized

2025

1. Public Talk, National Research Foundation of Korea, Seoul Science Center, Sep 6 (scheduled)

2. KMS Spring Meeting, Apr 25-26, 2025 (scheduled)

3. Diffusion models and the space of probability measures
   Seminar, Seoul National University of Science and Technology, Mar 24, 2025 (scheduled)

2024

1. Diffusion models and the space of probability measures
   Seminar, Department of Department of Electrical and Computer Engineering, Seoul National University, Dec 4, 2024

2. Optimization in the space of probability measures
   CSE/GSAI Seminar, Pohang University of Science and Technology, Pohang, Republic of Korea, Nov 27, 2024

3. A fully first-order method for stochastic bilevel optimization
   Korean Artificial Intelligence Association Fall Meeting, Nov 22, 2024

4. Long-time behavior of area-preserving mean curvature flow in two dimensions
   Korean-Japanese workshop on elliptic and parabolic equations, Nov 15-16, 2024

5. Crystalline mean curvature flow with a volume constraint
   Posco Science Fellowship Annual Workshop, Nov 15, 2024 (as an organizer)

6. A fully first-order method for stochastic bilevel optimization
   KIAS Center for AI and Natural Sciences 2024 Fall Workshop, Nov 5-8, 2024 (as an organizer) [Website]

7. De Giorgi's minimizing movements, optimal transport, and bilevel optimization
   Seminar, Department of Mathematical Sciences, Seoul National University, Oct 30, 2024

8. A fully first-order method for stochastic bilevel optimization
   KMS Fall Meeting, Republic of Korea, Oct 25, 2024

9. Long-time behavior of area-preserving mean curvature flow in two dimensions
   KMS Fall Meeting, Republic of Korea, Oct 25, 2024

10. Applications of Optimal Transport in Machine Learning
    Seminar, Department of Statistics, Seoul National University, Sep 27, 2024

11. Applications of Optimal Transport in Machine Learning
    Colloquium, Incheon National University, Songdo, Republic of Korea, Sep 12, 2024

12. Long-time behavior of area-preserving mean curvature flow in two dimensions
    CM2LA 1st Anniversary Workshop, Busan, Republic of Korea, Jun 22-23, 2024

13. Applications of Optimal Transport in Machine Learning
    Colloquium, Korea University, Seoul, Republic of Korea, Jun 14, 2024

14. De Giorgi's Minimizing Movements
    Colloquium, Pohang University of Science and Technology, Pohang, Republic of Korea, May 3, 2024

15. De Giorgi's Minimizing Movements
    Invited Lecture, KMS Spring Meeting, Daejeon, Apr 19-20, 2024

16. Crystalline mean curvature flow with a volume constraint
    SAARC Colloquium & PDE Seminar, Department of  Mathematical Sciences, KAIST, Daejeon, Republic of Korea, Apr 9, 2024 

17. Applications of De Giorgi's Minimizing Movements and Optimal Transport
    BK Seminar, Department of Mathematics, Yonsei University, Seoul, Republic of Korea, Mar 14, 2024

18. Crystalline mean curvature flow with a volume constraint
    PDE-Probability Workshop, Sejong, Republic of Korea, Mar 8 - 9, 2024 [Link]

2023

1. Applications of De Giorgi's Minimizing Movements and Optimal Transport

Applied and Computational Mathematics Seminar, Department of  Mathematical Sciences, KAIST, Daejeon, Republic of Korea, December 1, 2023 [Abstract]

2. De Giorgi's minimizing movements and applications of optimal transport
   KIAS Center for AI and Natural Sciences Workshop, Gyeongju, Republic of Korea, November 24, 2023 

3. Applications of Optimal Transport in Machine Learning
   KSIAM Annual Meeting, Special Session: KAIA-KSIAM Joint Session on Mathematical Understanding of AI, Gwangju, Republic of Korea, November 3, 2023 

4. Convergence of score-based generative modeling and related problems
   KIAS - Hanyang University AI Summer School, Hanyang University, Seoul, Republic of Korea, November 1, 2023

5. Long-time behavior of area preserving mean curvature flow in two dimensions
   KMS Fall Meeting, Special Session on Curvature Functional and Scalar Curvature, Seoul National University, Seoul, Republic of Korea, October 28, 2023

6. Viscosity solutions and their applications to level-set mean curvature flow equation
   KMS Fall Meeting, Focus Session on Regularity Theory on Nonlinear Partial Differential Equation in Honor of Luis Caffarelli’s Contribution, Seoul National University, Seoul, Republic of Korea, October 27, 2023

7. Applications of Optimal Transport in Machine Learning
   BK Seminar, Department of Applied Statistics and Data Science, Yonsei University, October 18, 2023

8. De Giorgi's minimizing movements and applications of optimal transport
   Colloquium, Department of Mathematics, Sogang University, Seoul, Republic of Korea, October 12, 2023

9. Applications of Optimal Transport to Generative Models
   Colloquium, National Institute for Mathematical Sciences (NIMS), Pangyo, Republic of Korea, September 21, 2023 

10. De Giorgi's minimizing movements to gradient flows in the space of sets
    3-hour Intensive lectures, 2023 Summer PDE Workshop, UNIST, Ulsan, Republic of Korea, August 16-17, 2023

11. Crystalline mean curvature flow with a volume constraint
    Workshop on Quantum Analysis 2023, Sokcho, Republic of Korea, July 10, 2023 [Slides] [Website]

12. De Giorgi's minimizing movements and applications of optimal transport
    CM2LA (SRC) Inaugural Workshop, Busan, Republic of Korea, June 22, 2023

13. Crystalline mean curvature flow with a volume constraint
    Chung-Ang University, Seoul, Republic of Korea, June 15, 2023

14. An overview of score-based generative modeling and the associated PDEs
    Machine Learning and PDE Seminar, Pohang University of Science and Technology, Pohang, Republic of Korea, June 8, 2023 [Website]

15. An overview of score-based generative modeling and the associated PDEs
    Dongguk University, Seoul, Republic of Korea, May 25, 2023

16. De Giorgi's minimizing movements to gradient flows in the space of sets
    Madison Workshop in PDE, Madison, Wisconsin, United States, May 15, 2023 [Website, Poster]

17. Additive eigenvalues of superquadratic Hamilton-Jacobi Equations with changing domains
    KMS Spring Meeting, April 28, 2023

18. Convergence of score-based generative modeling and related problems
    KIAS AI Center Seminar, KIAS, Seoul, Republic of Korea, April 19, 2023 [Website]

19. From De Giorgi's minimizing movements to gradient flows
    Seoul National University, Seoul, Republic of Korea, April 14, 2023 [Website]

20. Crystalline mean curvature flow with a volume constraint
    Colloquium, Department of Mathematics, Inha University, Incheon, Republic of Korea, April 6, 2023

21. Convergence of score-based generative modeling and related problems
    Math Machine Learning seminar MPI MiS + UCLA, Mar 23, 2023 (online)

22. An overview of score-based generative modeling and the associated PDEs
    KIAS, Seoul, Republic of Korea, Mar 22, 2023 

23. Level-set forced mean curvature flow with the Neumann boundary condition
    Asia-Pacific Analysis and PDE seminar, Mar 13, 2023 [Website, Video] (online) [Slides]

24. Level-set forced mean curvature flow with the Neumann boundary condition
    KIAS Geometry Winter School, Republic of Korea, Feb 6, 2023 [Website]

25. Level-set forced mean curvature flow with the Neumann boundary condition
    Applied and Computational Mathematics Seminars, Auburn University, Auburn, Alabama, United States, January 13, 2023 [Website]

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• A fully first-order method for stochastic bilevel optimization
  Oral & Poster, Fortieth International Conference on Machine Learning (ICML 2023), Honolulu, Hawaii, July 26-27, 2023

• Complexity of block coordinate descent with proximal regularization and applications to Wasserstein CP-dictionary learning
  Poster, Fortieth International Conference on Machine Learning (ICML 2023), Honolulu, Hawaii, July 25, 2023

2022

1. Convergence of score-based generative modeling and related problems
   MLOPT Idea Seminar, UW-Madison, Wisconsin, United States, November 11, 2022 [Website, Video]

2. Gradient flows of non-differentiable energy functionals
   PIMS- IFDS- NSF Summer School on Optimal Transport, University of Washington, Seattle, Washington, United States, June 30, 2022 

3. Crystalline mean curvature flow with a volume constraint
   Pohang University of Science and Technology, Republic of Korea, May 31, 2022

4. Crystalline mean curvature flow with a volume constraint
   Ulsan National Institute of Science and Technology, Republic of Korea, May 30, 2022

5. Minimization of the Wasserstein distance in score-based generative modeling
   Institute for Foundations of Data Science (IFDS) Ideas forum, UW-Madison, Madison, Wisconsin, United States, April 11, 2022

6. Plenary Talk, Crystalline mean curvature flow with a volume constraint
   Midwest Geometry Conference, Wichita State University, Kansas, United States, March 12, 2022 [Website] [Poster] [Handout] [Keynote]

7. Training Wasserstein Generative Adversarial Networks without gradient penalties
   KIAS AI Center Seminar, KIAS, Republic of Korea, March 10, 2022 (online) [Website, Video]

8. Degenerate parabolic equations with discontinuous diffusion intensities
   Yonsei University, Republic of Korea, February 9, 2022 (online)

9. Crystalline mean curvature flow with a volume constraint
   Yonsei University, Republic of Korea, January 7, 2022 [Slides]

10. Crystalline mean curvature flow with a volume constraint
    Seoul National University, Republic of Korea, January 7, 2022 [Slides]

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• Score-based generative modeling secretly minimizes the Wasserstein distance
  Poster, Thirty-sixth Conference on Neural Information Processing Systems (NeurIPS 2022), New Orleans, United States, Nov 28 - Dec 4, 2022

2021

1. Volume-preserving crystalline mean curvature flow
   the 17th Prairie Analysis Seminar, Kansas State University, Kansas, United States, November 11, 2021 (online) [Slides]

2. Training Wasserstein Generative Adversarial Networks without gradient penalties
   Dynamics and Discretization: PDEs, Sampling, and Optimization, Geometric Methods in Sampling and Optimization, the Simons Institute for the Theory of Computing in Berkeley, California, United States, October 25, 2021 [Slides] [Video] [Website]

3. Volume preserving crystalline and anisotropic mean curvature flow
   PDE Geometric Analysis seminar, UW-Madison, United States, Sep 27, 2021 [Slides] [Abstract]

2019

1. Volume preserving mean curvature flow for star-shaped sets
   SIAM Conference on Analysis of Partial Differential Equations, California, United States, December 11, 2019 [Slides] [Video1 Video2 Video3 (Thanks to Matt Jacobs)]

2. Degenerate nonlinear parabolic equations with discontinuous diffusion coefficients
   The Level Set Collective, UCLA, United States, November 5, 2019 [Slides] [Abstract]

3. Volume preserving mean curvature flow for star-shaped sets
   Applied Math and Analysis Seminar, Duke University, Durham, North Carolina, United States, July 30, 2019 [Slides] [Abstract]            

4. Nonlinear diffusion equations with discontinuous nonlinearities
   People in Optimal Transportation and Applications, Cortona, Italy, June 25, 2019 [Slides] [Abstract] [Website]

5. Volume preserving mean curvature flow for star-shaped sets
   Southern California Applied Mathematics Symposium, California Institute of Technology, Los Angeles, California, United States, April 27, 2019 [Slides] [Abstract] [Website]

6. Global-time behavior of volume preserving mean curvature flow for star-shaped sets
   AMS Spring Central and Western Joint Sectional Meeting, Special Session on New Trends in Geometric Measure Theory, University of Hawaii at Manoa, Honolulu, United States, March 24, 2019 [Website] [Slides] [Abstract]

Before 2017

1. Analysis of mean curvature flow with a forcing term
   AMS Fall Western Sectional Meeting, Special Session on Particle Methods and Nonlocal Partial Differential Equations, University of California, Riverside, CA, United States, November 5, 2017 [Website] [Abstract]

2. Existence and long-time behavior of normalized mean curvature flow
   Analysis Seminar, Kanazawa University, Japan, March 7, 2016 [Website]

3. Stability of normalized mean curvature flow
   11th KIAS Geometry Winter School, Republic of Korea, January 24, 2016 [Abstract]

4. The effect of starvation driven diffusion in a prey-predator model
   2015 KAIST CMC Mathematical Biology Conference, KAIST, Republic of Korea, June 9, 2015 [Website]

Seminar Talks

1. Wasserstein gradient flows of non-differentiable energy functionals
   PDE Reading Seminar, UW-Madison, Wisconsin, United States, April 22, April 29, May 6 & May 10, 2022

2. Training Wasserstein GANs without gradient penalties
   UW-Madison, United States, September 22, 2021

3. Volume-preserving crystalline mean curvature flow

4. PDE Reading Seminar, UW-Madison, United States, April 6, 13 and 20, 2021 [Note 1] [Note 2] [Note 3]

5. Volume preserving mean curvature flow
   PDE Reading Seminar, UW-Madison, United States, Sep 21, 2020

6. Geometric properties of mean curvature flows
   UCLA Participating Analysis Seminar, United States, April 23, 2019 [Notes [Abstract]             

7. Existence of volume preserving mean curvature flows
   UCLA Participating Analysis Seminar, United States, April 16, 2019 [Notes] [Abstract]

8. Global-time behavior of volume preserving mean curvature flow for star-shaped sets
   UCLA Participating Analysis Seminar, United States, March 12, 2019 [Notes] [Abstract]

9. Differentiability with respect to the measure in the first order master equation
   UCLA Participating Applied Mathematics Seminar: Introduction to Mean Field Games, United States, November 21, 2016

10. Free boundary interpretation for starvation driven diffusion
    Mathematical Biology Seminar, National Institute for Mathematical Sciences, Republic of Korea, January 12, 2016

11. Rearrangement inequality
    UCLA Participating Applied Mathematics Seminar: Inequalities and PDEs, United States, April 22, 2013

12. Rearrangement inequality
    UCLA Participating Applied Mathematics Seminar: Inequalities and PDEs, United States, April 15, 2013