• Spectral methods: finite element methods, stochastic Galerkin methods, stochastic least-squares Petrov--Galerkin methods
• Sampling methods: Monte Carlo methods, stochastic collocation methods, solution approximation methods via compressive sensing

• Krylov subspace methods, iterative methods in low-rank tensor format, Multigrid methods, preconditioning techniques, matrix decomposition methods, constrained optimization methods

• Inexact Methods for Symmetric Stochastic Eigenvalue Problems
  Kookjin Lee and Bedřich Sousedík
  (submitted)

• A Low-rank Solver for the Navier-Stokes Equations with Uncertain Viscosity
  Kookjin Lee, Howard C. Elman, and Bedřich Sousedík
  arXiv:1710.05812 (in revision)

• Stochastic Least-Squares Petrov-Galerkin Method for Parameterized Linear Systems
  Kookjin Lee, Kevin T. Carlberg, and Howard C. Elman
  SIAM/ASA Journal on Uncertainty Quantification, 6(1):374--396, 2018. [ arXiv:1701.01492 ]

• A Preconditioned Low-rank Projection Method with a Rank-reduction Scheme for Stochastic Partial Differential Equations
  Kookjin Lee and Howard C. Elman
  SIAM Journal on Scientific Computing, 39(5):S828--S850, 2017. [ arXiv:1605.05297 ]

• A Group-Based Communication Scheme Based on the Location Information of MTC Devices in Cellular Networks
  Kookjin Lee, Jaesheung Shin, Yongwoo Cho, Kabseok Koh, Dankeun Sung, and Heonshik Shin
  IEEE International Conference on Communications (ICC), Jun, 2012.

Course Work

Teaching Assistance

Miscellaneous