Co-organized activities:

1. Minisymposium on "Geometric Methods for Understanding and Applying Machine Learning", SIAM Conference on Imaging Science, March 2022. 

2. Workshop on "Geometry and Learning from Data", BIRS-CMO, Oct., 2021

3. Minisymposium on ‘‘Statistics and Machine Learning for the Euclidean Distance Geometry Problem", SIAM Conference on Data Science, Cincinnati, Ohio, May, 2020.

4. Geometry and Learning from Data in 3D and Beyond, IPAM three-month long program, UCLA, USA, March 11-June 14, 2019.

5. Minisympoiusm on Geometry and Learning in 3D Shape Analysis in SIAM Conference on Imaging Science (IS18). University of Bologna, Bologna, Italy. June 5-8, 2018.

6. Workshop on ‘‘Shape analysis and learning by geometry and machine’’, Institute of Pure and Applied Math (IPAM), UCLA, Feb. 2016.

7. Minisymposium on ‘‘Geometric Understanding of Data in 3D and Higher (I, II, III)", International Congress on Industrial and Applied Mathematics. Beijing, 2015

8. Minisymposium on ‘‘ Mathematics of Medical Imaging and Shape Analysis (I, II, III)", SIAM conference on image science, Philadelphia, 2012.

Invited talks:

1. Applied and Computational Differential Geometry and Geometric PDEs, BIRS, Canada, Aug, 2023. 

2. Trustworthy and Efficient Machine Learning (Online), The 6th International Conference on Econometrics and Statistics, Tokyo, Japan, Aug, 2023. 

3. Lisbon Webinar, Mathematics, Physics and Machine Learning (Online), Lisbon, April 2023.

4. East Coast Optimization Meeting, George Mason University, VA, April, 2023

5. Numerical Seminar, Worcester Polytechnic Institute, Massachusetts, April, 2023. 

6. Department of Mathematics, Purdue University, Feb 2023. 

7. Analytics Seminar, STR, Boston, Feb, 2023.

8. MSRI Special Session on Applied and Computational Mathematics in Joint Mathematics Meetings (JMM), Boston, Jan, 2023.

9. New Trends in Computational and Data Sciences (in honor of Tony Chan's 70th birthday) , Caltech, CA, Dec, 2022.

10. One World Mathematics of Information, Data, and Signals (1W-MINDS) seminar, Dec, 2022. 

11. Mathematics of Machine Learning Session, The Canadian Math  Society Winter 2022, Toronto, Dec, 2022. 

12. Applied Math Seminar, Auburn University, Nov. 2022. 

13. New Ideas in Computational Inverse Problems, BIRS, Canada, Oct, 2022.

14. CNA seminar, Carnegie Mellon University, Oct, 2022. 

15. Structure-preserving Machine Learning, AMS Fall Eastern Sectional Meeting, MA, Oct, 2022

16. MURI Mean-field Game review conference, DC, Aug, 2022. 

17. International Conference on New Trends in Scientific Computing (in honor of Stanley Osher's 80th birthday) , IPAM, UCLA, April 2022.

18. Mini-symposium (online) on "Geometry, Computing and Learning for Science and Engineering", SIAM Conference on Imaing Science, March, 2022. 

19. Mathematical Data Science Seminar (online), Math Department, Purdue University, March 2022.

20. Applied math seminar (online), University of Massachusetts Amherst, Nov. 2021

21. Special Session (online) on "Theoretical and Applied perspectives in Machine Learning", AMS Fall Western sectional meeting, October, 2021. 

22. Minisymposium (online) on "Recent Progress of Classical and Deep Learning Methods in Inverse Problems and Imaging", 2021 SIAM Southeastern Atlantic Sectional Conference, September, 2021.

23. Colloquium (online), Math department, Geogia state University, April, 2021.

24. CAM seminar (online), Math department, Iowa State University, March, 2021.

25. Seminar (online), Math department, University of New Mexican, March, 2021.

26. Machine Learning seminar (online), Math department, Duke University, Nov, 2020

27. Applied math seminar (online), Tufts University, Oct, 2020.

28. Minisymposium on “Tensor Methods for Imaging Processing”, SIAM Conference on Imaging Science, Toronto, Ontario, Canada, July, 2020.

29. Minisymposium on “Geometric models, Deep learning and scientific computing for imaging, graphics and visions”, SIAM Conference on Imaging Science, Toronto, Ontario, Canada, July, 2020.

30. Minisymposium on “Deep thoughts on geometric learning and exploration of non-Euclidean data”, SIAM Conference on Data Science, Cincinnati, Ohio, May, 2020.

31. Applied math colloquium, New Jersey Institute of Technology, Feb, 2020

32. Data science seminar, Institute for Math and Applications, University of Minnesota, Oct, 2019.

33. Workshop on Geometric Methods for Analyzing Discrete Shapes, UC Davis, Sep, 2019.

34. Two Mini-symposium talks at ICIAM, Valencia, Spain, July, 2019.

35. Seminar, Math department, Tsinghua University, July, 2019.

36. Seminar, Math department, Nankai University, July, 2019.

37. Seminar, Math department, Peking University, July, 2019.

38. Recent advances on Mathematical Imaging and Data Science, Shanghai jiaotong University, China, July, 2019.

39. Workshop on Recent Developments on Mathematical/Statistical approaches in Data Science (MSDAS), UT Dallas, June, 2019.

40. Workshop on Shape analysis, UCLA, IPAM, April, 2019.

41. Applied math seminar, University of Alabama, April 12, 2019.

42. Geometry and Learning from Data Tutorial, IPAM, March, 2019.

43. Applied and computational math seminar, Georgia Tech. Feb. 18, 2019.

44. International Conference on Scientific Computing, Chinese University of Hong Kong, Hong Kong. Dec. 5–8, 2018.

45. Colloquium, University of Hong Kong, Dec. 4, 2018.

46. Analysis and Data Seminar, SUNY Albany, Oct. 2018.

47. Center for Computational & Applied Math seminar, Math Department, Purdue University, Sep. 17, 2018.

48. SIAM Annual Meeting, Portland, Oregon, USA. July 9–13, 2018.

49. SIAM Conference on Imaging Science (IS18), University of Bologna, Bologna, Italy. June 5-8, 2018.

50. Applied Math and Analysis seminar, Math Department, Duke University, April 25, 2018.

51. Applied and Computational Math talk, Math Department, University of California, Irvine, April 16, 2018.

52. SIAM Conference on Uncertainty Quantification (UQ18), Garden Grove, California, USA. April 16-19, 2018.

53. Workshop on Geometry, Imaging and Computing, Harvard University, Boston, USA. March 24-26, 2018.

54. The 6th ICCM CAM Conference on Geometry and Imaging, Tsinghua University, Beijing, China. Dec. 15-17, 2017.

55. Seminar talk, The institute of computational math and scientific/Engineering computing of Chinese Academy of Sciences, Beijing, China, Dec. 2017

56. Young Researchers Workshop on New Trends in Computational and Applied Mathematics, BICMR, Peking University, Beijing, China. Dec 18-20, 2017.

57. Young mathematician forum, Peking University, China, Dec. 2017.

58. Seminar talk, Sun Yat-sen University, Guang Zhou, China, June, 2017.

59. Workshop on Optimization in Scientific Computing, Chinese University of Hong Kong, Hong Kong, June 2017.

60. Workshop on Frame Theory and Sparse Representation for Complex Data, Singapore, June, 2017.

61. Minisymposium on Optimization and Quantum Chemistry, SIAM Conference on Optimization, Vancouver , Canada, May, 2017,

62. Seminar talk, Department of Mathematics, Syracuse University, Syracuse, Oct. 2016.

63. Seminar talk, Department of Mathematics, Nankai University, Tianjing, China, Aug. 2016.

64. Workshop On Mathematics in Imaging Science and Data Analysis, Beijing, China, Aug. 2016.

65. The 11th AIMS Conference on Dynamical Systems, Differential Equations and Applications, Orlando, July, 2016.

66. The 7th Pacific Rim Conference on Mathematics, Seoul, Korea, June 2016.

67. Workshop on Shape Analysis and Learning by Geometry and Machine, Institute of Pure and Applied Math (IPAM), UCLA, Feb. 2016.

68. The International Workshop on Mathematical Image Processing, Tianjing, China, Aug, 2015

69. Minisymposium on Mathematical and Numerical Aspects of Electronic Structure Theory, the 8-th International Congress on Industrial and Applied Mathematics, Beijing, China. Aug. 2015

70. Minisymposium on Geometric Understanding of Data in 3D and Higher, the 8-th International Congress on Industrial and Applied Mathematics, Beijing, China. Aug. 2015.

71. International Conference on Inverse Problems, Imaging and Applications, Hangzhou, China, Aug. 2015.

72. Department of Mathematics, Claremont McKenna College, Claremont, April. 2015.

73. Workshop on Laplacians and Heat Kernels: Theory and Applications. BIRS, Banff, Canada, 2015.

74. Seminar talk, University of Science and Technology of China, Hefei, Dec. 2014.

75. International Workshop on Signal Processing, Optimization, and Control, Changsha, Dec. 2014.

76. International Workshop on Mathematical Geometry Processing and Applications, Hong Kong, Dec. 2014.

77. Seminar talk, Department of Mathematics, Rensselaer Polytechnic Institute, Nov. 2014.

78. Seminar talk, Michigan State University, East Lansing, Oct. 2014.

79. Minisymposium on Applications of splitting methods to nonconvex problems in imaging science, SIAM Conference on Image Science, Hong Kong, May, 2014.

80. Minisymposium on Geometry, Imaging and Computing, SIAM Conference on Image Science, Hong Kong, May, 2014.

81. Seminar talk, Department of Mathematics, University of California at Los Angeles, USA, April 2014.

82. Department of Mathematics, Duke University, USA, March 2014.

83. Department of Mathematics, North Carolina State University, Jan. 2014.

84. Department of Mathematics, National University of Singapore, Jan. 2014.

85. Department of Mathematics, Rensselaer Polytechnic Institute, Dec. 2013.

86. International Workshop on Signal Processing, Optimization and Compressive Sensing, Harbin, China. Dec. 2013.

87. Department of Mathematics, California State University, Long Beach, USA, Nov, 2013.

88. AMS sectional meeting in Riverside, California, November 2013.

89. Minisymposium in SIAM annual Meeting, San Diego, USA, July, 2013.

90. Department of Mathematics, City University of Hong Kong, Hong Kong, May, 2013.

91. Department of Mathematics, University of California at Riverside, USA, Feb. 2013.

92. Minisymposium in Joint Mathematics Meeting (JMM), San Diego, USA, January, 2013.

93. CAM-ICCM Imaging Science: a workshop in honor of Stanley Osher's 70th birthday, Tsinghua University, China, Dec. 2012.

94. AMS sectional meeting in Tucson, Arizona, October 2012.

95. Department of Mathematics, University of California at Los Angeles, USA, June 2012.

96. Minisymposium in SIAM Conference on Image Science, Philadelphia, USA, May 2012.

97. Department of Mathematics, University of California at Los Angeles, USA, Feb. 2012.

98. International Conference on Scientific Computing (in honor of Tony Chan's 60th birthday) , Hong Kong, Jan. 2012.

99. Minisymposium in SIAM Conference on Analysis of PDE, San Diego, USA. 14-17, Nov. 2011.

100. Workshop on Computational Methods in Medical Imaging, UBC, Canada, October 2011.

101. Department of Mathematics, University of Arizona, USA, September 2011.

102. Workshop on Analytic and Geometric Methods in Medical Imaging, Isaac Newton Institute, Cambridge, U. K., August 2011.

103. Institute of Natural Science, Shanghai Jiaotong University, China, July, 2011.

104. Department of Electrical Engineering, University of Southern California, USA, February 2011.