2021–Current

• Youngkyu Lee, Jongho Park, and Chang-Ock Lee. Parareal neural networks emulating a parallel-in-time algorithm. IEEE Transactions on Neural Networks and Learning Systems, 35, 6353-6364 (2024)
• Seongeun Kim and Chang-Ock Lee. Individual tooth segmentation in human teeth images using pseudo edge-region obtained by deep neural networks. Signal Processing: Image Communication, 120, 117076 (2024)
• Jinkyu Yu, S. Han, and Chang-Ock Lee. Defect inspection in semiconductor images using FAST-MCD method and neural network. The International Journal of Advanced Manufacturing Technology, 129, 1547-1565 (2023)
• Soomin Jeon and Chang-Ock Lee. Recent approaches to metal artifact reduction in X-ray CT imaging, 347-377. In: K. Chen, CB. Schonlieb, X. Tai, L. Younces. (eds) Handbook of Mathematical Models and Algorithms in Computer Vision and Imaging. Springer, Cham. (2023)
• Chang-Ock Lee, and Soomin Jeon. Method and apparatus for scattering artifacts correction in industrial 3-dimensional cone beam computed tomography. Korea Patent, Registration number: 10-2382192 (Mar 30, 2022) & US Patent, Registration number: 11547379 B2 (Jan 10, 2023)
• Youngkyu Lee, Jongho Park, and Chang-Ock Lee. Two-level group convolution. Neural Networks, 154, 323–332 (2022)
• A. R. Hayotov, Soomin Jeon, Chang-Ock Lee, and Kh. M. Shadimetov. Optimal quadrature formulas for non-periodic functions in Sobolev space and its application to CT image reconstruction. Filomat, 35, 4177–4196 (2021)
• Chang-Ock Lee and Jongho Park. A dual-primal finite element tearing and interconnecting method for nonlinear variational inequalities utilizing linear local problems. International Journal for Numerical Methods in Engineering, 122, 6455–6475 (2021)
• Chang-Ock Lee, Soomin Jeon, and Seongeun Kim. Method and apparatus for metal artifact reduction in industrial 3-dimensional cone beam computed tomography. Korea Patent, Registration number: 10-2225043 (Mar 3, 2021) & US Patent, Registration number: 11080900 B2 (Aug 3, 2021)
• Chang-Ock Lee, Eun-Hee Park, and Jongho Park. Corrigendum to "A dual iterative substructuring method with a small penalty parameter", [J. Korean Math. Soc. 54 (2017), No. 2, 461–477]. Journal of Korean Mathematical Society 58, 791–797 (2021)
• Soomin Jeon, Seongeun Kim, and Chang-Ock Lee. Shape prior metal artifact reduction algorithm for industrial 3D cone beam CT. Nondestructive Testing and Evaluation, 36, 176–194 (2021)

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2019–2020

• Chang-Ock Lee and Eun-Hee Park. Preconditioners for a coupled problem by a penalty term arisen in an augmented Lagrangian method. Journal of the Korean Mathematical Society, 57, 1267–1286 (2020)
• Chang-Ock Lee and Jongho Park. Recent advances in domain decomposition methods for total variation minimization. Journal of the Korean Society for Industrial and Applied Mathematics, 24, 161–197 (2020)
• A. R. Hayotov, Soomin Jeon, and Chang-Ock Lee. On an optimal quadrature formula for approximation of Fourier integrals in the space $L_2^{(1)}$. Journal of Computational and Applied Mathematics, 372, 112713 (2020)
• Seong-Geun Shin and Chang-Ock Lee. Splitting basis techniques in cloth simulation by isogemetric analysis. Computer Methods in Applied Mechanics and Engineering, 362, 112871 (2020)
• Doyeob Yeo and Chang-Ock Lee. Variational shape prior segmentation with an initial curve based on image registration technique. Image and Vision Computing, 94, 103865 (2020)
• Chang-Ock Lee and Jongho Park. A finite element nonoverlapping domain decomposition method with Lagrange multipliers for the dual total variation minimizations. Journal of Scientific Computing, 81, 2331–2355 (2019)
• Chang-Ock Lee and Jongho Park. Fast block Jacobi method for the dual Rudin–Osher–Fatemi model. SIAM Journal on Imaging Sciences, 12, 2009–2034 (2019)
• Chang-Ock Lee, Eun-Hee Park, and Jongho Park. A finite element approach for the dual Rudin–Osher–Fatemi model and its nonoverlapping domain decomposition methods. SIAM Journal on Scientific Computing, 41, B205–B228 (2019)
• Junwoo Kim and Chang-Ock Lee. Three-dimensional volume reconstruction using two-dimensional parallel slices. SIAM Journal on Imaging Sciences, 12, 1–27 (2019)
• Chang-Ock Lee, Changmin Nam, and Jongho Park. Domain decomposition methods using dual conversion for the total variation minimization with L1 Fidelity term. Journal of Scientific Computing, 78, 951–970 (2019)

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2013–2018

• S. Gutschmidt, M. McGuinness, W. Munn, J. Hannam, E. Greenbank, Soomin Jeon, Chang-Ock Lee, C. Kueh, T. Gibb, B. Goodger, and A. McIntyre. Fast accurate multi-key weight measurement. ANZIAM Journal, 58, M328–M364 (2018)
• Soomin Jeon and Chang-Ock Lee. A CT metal artifact reduction algorithm based on sinogram surgery. Journal of X-Ray Science and Technology, 26, 1–22 (2018)
• Kiwan Jeon, Chang-Ock Lee, and E.J. Woo. A harmonic Bz conductivity reconstruction method in MREIT with influence of non-transversal current density. Inverse Problems in Science and Engineering, 26, 811–833 (2018)
• Chang-Ock Lee and Changmin Nam. Primal domain decomposition methods for the total variation minimization, based on dual decomposition. SIAM Journal on Scientific Computing, 39, B403–B.423 (2017)
• Chang-Ock Lee and Eun-Hee Park. A dual iterative substructuring method with a small penalty parameter. Journal of Korean Mathematical Society 54, 461–477 (2017)
• J.-G. Kim, S.-H. Boo, Chang-Ock Lee, and P.-S. Lee. On the computational efficiency of the error estimator for Guyan reduction. Computer Methods in Applied Mechanics and Engineering, 305, 759–776 (2016)
• Chang-Ock Lee, J. H. Lee, H. Woo, and S. Yun. Block decomposition methods for total variation by primal-dual stitching. Journal of Scientific Computing, 68, 273–302 (2016)
• Sang-Un Kim and Chang-Ock Lee. Accurate surface reconstruction in 3D using two-dimensional parallel cross sections. Journal of Mathematical Imaging and Vision, 53, 182–195 (2015)
• Sung Ha Park, Chang-Ock Lee and Jooyoung Hahn. Image segmentation based on the statistical variational formulation using the local region information. Journal of the Korean Society for Industrial and Applied Mathematics, 18, 129–142 (2014)
• Kiwan Jeon and Chang-Ock Lee. CoReHA 2.0: A software package for in vivo MREIT Experiments. Computational and Mathematical Methods in Medicine, 941745 (2013)

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2010–2012

• Chang-Ock Lee and Eun-Hee Park. A dual iterative substructuring method with a penalty term in three dimensions. Computers & Mathematics with Applications, 64, 2787–2805 (2012)
• Hyea Hyun Kim and Chang-Ock Lee. A two-level nonoverlapping Schwarz algorithm for the Stokes problem: Numerical study. Computer Methods in Applied Mechanics and Engineering, 223-224, 153–160 (2012)
• Hyea Hyun Kim and Chang-Ock Lee. A two-level nonoverlapping Schwarz algorithm for the Stokes problem without primal pressure unknowns. International Journal for Numerical Methods in Engineering, 88, 1390–1410 (2011)
• J. K. Seo, Kiwan Jeon, Chang-Ock Lee, and E.J. Woo. Non-iterative harmonic Bz algorithm in MREIT. Inverse Problems, 27, 085003 (2011)
• Chang-Ock Lee, Kiwan Jeon, and Seonmin Ahn, H.J.Kim and E.J.Woo. Ramp-preserving denoising for conductivity image reconstruction in magnetic resonance electrical impedance tomography. IEEE Transactions of Biomedical Engineering, 58, 2038–2050 (2011)
• Hyea Hyun Kim, Chang-Ock Lee and Eun-Hee Park. On the selection of primal unknowns for a FETI-DP formulation of the Stokes problem in two dimensions. Computers & Mathematics with Applications, 60, 3047–3057 (2010)
• Kiwan Jeon, H. J. Kim, Chang-Ock Lee, J. K. Seo, and E. J. Woo. Integration of denoising, inpainting and local harmonic Bz algorithm for MREIT imaging of intact animals. Physics in Medicine and Biology, 55, 7541–7556 (2010)
• Hyea Hyun Kim and Chang-Ock Lee. A FETI-DP formulation for the three-dimensional Stokes problem without primal pressure unknowns. SIAM Journal on Scientific Computing, 32, 3301–3322 (2010)
• Hyea Hyun Kim, Chang-Ock Lee, and Eun-Hee Park. A FETI-DP formulation for the Stokes problem without primal pressure components. SIAM Journal on Numerical Analysis, 47, 4142–4162 (2010)
• Jooyoung Hahn and Chang-Ock Lee. Geometric attraction-driven flow for image segmentation and boundary detection. Journal of Visual Communication and Image Representation, 21, 56–66 (2010)
• Chang-Ock Lee, C.H. Leem, Eun-Hee Park, and J.B. Youm . Absolutely stable explicit schemes for reaction systems. Journal of Korean Mathematical Society, 47, 165–187 (2010)

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2004–2009

• Chang-Ock Lee, Sung Ha Park, and Jooyoung Hahn. Method for image segmentation using statistically reinstating force and multi-resolution. Korea Patent, Registration number: 10-0925180 (October 29, 2009)
• Gregory Guyomarc'h, Chang-Ock Lee, and Kiwan Jeon. A discontinuous Galerkin method for elliptic interface problems with application to electroporation. Communications in Numerical Methods in Engineering, 25, 991–1008 (2009)
• Kiwan Jeon, A.S. Minhas, Y.T. Kim, W.C. Jeong, H.J. Kim, B.T. Kang, H.M. Park, Chang-Ock Lee, J.K. Seo, and E.J. Woo. MREIT conductivity imaging of postmortem canine abdomen using CoReHA. Physiological Measurement, 30, 957–966 (2009)
• Jooyoung Hahn and Chang-Ock Lee. A nonlinear structure tensor with diffusivity matrix composed of the image gradient. Journal of Mathematical Imaging and Vision, 34, 137–151 (2009)
• Chang-Ock Lee and Eun-Hee Park. A dual iterative substructuring method with a penalty term. Numerische Mathematik, 112, 89–113 (2009)
• J.K. Seo, S.W. Kim, S. Kim, J. Liu, E.J. Woo, Kiwan Jeon, and Chang-Ock Lee. Local harmonic Bz algorithm with domain decomposition in MREIT: computer simulation study. IEEE Transactions on Medical Imaging, 27, 1754–1761 (2008)
• Chang-Ock Lee, Kiwan Jeon, Y. Ha, and Jooyoung Hahn. A variational approach to blending based on warping for non-overlapped image. Computer Vision and Image Understanding, 105, 112–120 (2007)
• S. D. Kim, Chang-Ock Lee, T. Manteuffel, S. McCormick, and O. Roehrle. First-order system least-squares functionals for the Oseen equations. Numerical Linear Algebra with Applications, 13 pp. 523–542 (2006)
• Hyea Hyun Kim and Chang-Ock Lee. A Neumann-Dirichlet preconditioner for a FETI-DP formulation of the two-dimensional Stokes problem with mortar methods. SIAM Journal on Scientific Computing, 28, 1133–1152 (2006)
• Yeon-woo Chang, Hyea Hyun Kim, and Chang-Ock Lee. Preconditioners for the dual-primal FETI methods on nonmatching grids: numerical study. Computers & Mathematics with Applications, 51, 697–712 (2006)
• Chang-Ock Lee, Kilsu Park, B. C. Park, and Y. W. Lee. An algorithm for stylus instruments to measure aspheric surfaces. Measurement Science and Technology, 16, 1215–1222 (2005)
• Hyea Hyun Kim and Chang-Ock Lee. A preconditioner for the FETI-DP Formulation with mortar methods in two dimensions. SIAM Journal on Numerical Analysis, 42, 2159–2175 (2005)

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1995–2003

• H. J. Choe, Ki-Bok Kong, and Chang-Ock Lee. Convergence in Lp space for the homogenization problems of elliptic and parabolic equations in the plane. Journal of Mathematical Analysis and Applications, 287, 321–336 (2003)
• Chang-Ock Lee, J. Lee, and D. Sheen. A locking-free nonconforming finite element method for planar linear elasticity. Advances in Computational Mathematics,19, 277–291 (2003)
• Chang-Ock Lee, J. Lee, and D. Sheen. Frequency domain formulation of linearized Navier–Stokes equations. Computer Methods in Applied Mechanics and Engineering, 187, 351–362 (2000)
• Z. Cai, Chang-Ock Lee, S. McCormick, and T. Manteuffel. First-order system least squares for the Stokes and linear elasticity equations: further results. SIAM Journal on Scientific Computing, 21, 1728–1739 (2000)
• Z. Cai, Chang-Ock Lee, S. McCormick, and T. Manteuffel. First-order system least squares for planar linear elasticity: numerical results. SIAM Journal on Scientific Computing, 21, 1706–1727 (2000)
• T. Kim and Chang-Ock Lee. A parallel Gauss–Seidel method using NR data flow ordering. Applied Mathematics and Computation, 99, 209–220 (1999)
• Chang-Ock Lee, J. Lee, D. Sheen, and Y. Yeom. A frequency-domain parallel method for the numerical approximation of parabolic problems. Computer Methods in Applied Mechanics and Engineering, 169, 19–29 (1999)
• Chang-Ock Lee. Multigrid methods for the pure traction problem of linear elasticity: mixed formulation. SIAM Journal on Numerical Analysis, 35, 121–145 (1998)
• Chang-Ock Lee. A conforming mixed finite element method for the pure traction problem of linear elasticity. Applied Mathematics and Computation, 93, 11–29 (1998)
• Chang-Ock Lee and Seymour Parter. On the rate of convergence of the kXk block, k-line iterative methods: k -> infinity. Numerische Mathematik, 71, 59–90 (1995)

Computational Mathematics and Imaging Laboratory Department of Mathematical Sciences, KAIST 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Korea

External links KAIST Department of Mathematical Sciences