editorship
Experimental Mathematics, editor, 2023-present.
International Journal of Data Science in the Mathematical Sciences, editor, 2021-present.
Communications of the Korean Mathematical Society, editor, 2013-2023.
conferences organized
Murmurations in Arithmetic, ICERM, Providence, RI, July 2023, co-organizers: Yang-Hui He, Thomas Oliver.
Cluster Algebras and Related Topics in East Asia, QSMS, Seoul, Korea, June 2023, co-organizers: Seung-Il Choi, Jae-Hoon Kwon, Kyungyong Lee.
Cluster Algebras and Related Topics, QSMS, Seoul, Korea, July 2021, co-organizers: Jae-Hoon Kwon, Hyun Kyu Kim, Kyungyong Lee.
Eisenstein Series on Kac-Moody Groups and Applications to Physics, KIAS, Seoul, Korea, November 2015, co-organizers: Henry H. Kim, Axel Kleinschmidt, Stephen D. Miller.
Conference on Representation Theory and Related Topics, UConn, Storrs, CT, U.S.A., May 2015, co-organizer: Kailash Misra.
Conference on Cluster Algebras and Representation Theory, KIAS, Seoul, Korea, November 2014, co-organizers: Jae-Hoon Kwon, Kyungyong Lee, Li Li, Euiyong Park, Ralf Schiffler.
ICM 2014 Satellite Conference on Representation Theory and Related Topics, Daegu, Korea, August 2014, co-organizers: Seok-Jin Kang, Jae-Hoon Kwon, Kailash Misra, Young-Tak Oh, Euiyong Park, Ji Hye Jung.
Workshop on Arithmetics and Groups over 2-Dimensional Schemes, UConn, Storrs, CT, U.S.A., May 2006, co-organizer: Ivan Fesenko.
Combinatorial and Geometric Representation Theory, SNU, Seoul, Korea, October 2001, co-organizer: Seok-Jin Kang.
proceedings edited
(Co-editor Seok-Jin Kang) Combinatorial and Geometric Representation Theory, Contemporary Mathematics 325, American Mathematical Society, 2003.