Research

This page highlights selected publications and recently submitted papers (under review & revision). The purpose of sharing this list is primarily to foster collaboration and communication. The complete list of all papers and projects is always available upon request.

Selected Publications

2025

  1. Low-dimensional adaptive neural network regression with directional change detection via nuclear norm penalization
    Statistical Analysis and Data Mining, 2025
  2. Linear covariance selection model via ℓ1 penalization
    Kwan-Young Bak, and Seongoh Park
    Computational Statistics and Data Analysis, 2025
  3. spheresmooth: a penalized piecewie geodeisc curve fitting on a sphere
    Jae-Hwan Jhong, Seyoung Lee, Ja-Yong Koo, and 1 more author
    R journal, 2025
  4. Analysis of US airport network and KOSPI volatility based on covariance regression modeling method
    Kwan-Young Bak Jinju Kim
    Communications for Statistical Applications and Methods, 2025
  5. Calibrating a simulated exposure distribution using measurement error models
    Jiwoong Yu, Xueyan Zheng, Kwan-Young Bak, and 2 more authors
    Journal of Applied Statistics, 2025
  6. Efficient curve fitting with penalized B-splines for oceanographic and ecological applications
    Kwan-Young Bak, Dong-Young Lee, Ju-Seong Lee, and 4 more authors
    Scientific Reports, 2025
  7. Effect of dimensionality on convergence rates of kernel ridge regression estimator
    Kwan-Young Bak, and Woojoo Lee
    Journal of Statistical Planning and Inference, 2025
  8. Dimensionality reduction in multivariate nonparametric regression via nuclear norm penalization
    Donghwi Nam, Ja-Yong Koo, and Kwan-Young Bak
    Statistical Papers, 2025
  9. Comparison of cognitive and affective dimensions of multi-risk perception according to sociodemographic characteristics in a South Korean population
    Ryemi Do, Seyoung Lee, Kwan-Young Bak, and 5 more authors
    Sage Open, 2025
  10. Establishing a Panel Dataset for the Survey on the Effects of Minimum Wage Implementation (Research Report)
    Jongseok Byun, Seong Keon Lee, Kwan-Young Bak, and 2 more authors
    Ministry of Employment and Labor (GPRN: 11-1492865-100001-01), 2025
  11. Multi-task nonparametric regression under joint sparsity
    Jae-Hwan Jhong, Gyeongmin Kim, and Kwan-Young Bak
    IEEE Access, 2025
  12. ALTBI: constructing improved outlier detection models via optimization of inlier-memorization effect
    Seoyoung Cho, Kwan-Young Bak, and Dongha Kim
    The 39th Annual AAAI Conferenec on Artificial Intelligence, 2025

2024

  1. An adaptive neural network regression method for structure identification
    Jae-Kyung Shin, Kwan-Young Bak, and Ja-Yong Koo
    Journal of Computational and Graphical Statistics, 2024
  2. Dynamics of COVID-19 risk perception and predictors in South Korea: a two-year longitudinal study from the pandemic’s beginning (2020-2021)
    Minjung Lee, Seongoh Park, Sujin Seo, and 5 more authors
    Journal of Risk Research, 2024
  3. Nonparametric logistic regression based on sparse triangulation over a compact domain
    Seoyeon Kim, and Kwan-Young Bak
    Communications for Statistical Applications and Methods, 2024
  4. The regularization paths of total variation-penalized regression splines
    Kwan-Young Bak
    Communications in Statistics - Simulation and Computation, 2024

2023

  1. Minimax estimation in multi-task regression under low-rank structures
    Kwan-Young Bak, and Ja-Yong Koo
    Journal of Nonparametric Statistics, 2023
  2. Minimax density estimation under radial symmetry
    Kwan-Young Bak, and Ja-Yong Koo
    IEEE Access, 2023
  3. Intrinsic spherical smoothing method based on generalized Bezier curves and sparsity inducing penalization
    Kwan-Young Bak, Jae-Kyung Shin, and Ja-Yong Koo
    Journal of Applied Statistics, 2023

2022

  1. Sparse neural network regression with variable selection
    Jae-Kyung Shin, Kwan-Young Bak, and Ja-Yong Koo
    Computational Intelligence, 2022
  2. Penalized additvie neural network regression
    Jae-Kyung Shin, Kwan-Young Bak, and Ja-Yong Koo
    Intelligent Data Analysis, 2022
  3. Additive regression splines with total variation and non-negative garrote penalties
    Jae-Hwan Jhong, Kwan-Young Bak, Jae-Kyung Shin, and 1 more author
    Communications in Statistics - Theory and Methods, 2022
  4. Penalized polygram regression
    Jae-Hwan Jhong, Kwan-Young Bak, and Ja-Yong Koo
    Journal of the Korean Statistical Society, 2022
  5. Linear Methodology (Book)
    Ja-Yong Koo, Kwan-Young Bak, Jae-Kyung Shin, and 1 more author
    Freedom Academy (ISBN: 9791158083762), 2022

2021

  1. Penalized logspline density estimation using total variation penalty
    Kwan-Young Bak, Jae-Hwan Jhong, JungJun Lee, and 2 more authors
    Computational Statistics and Data Analysis, 2021
  2. Nonparametric matrix regression function estimation over symmetric positive definite matrices
    Kwan-Young Bak, Kwang-Rae Kim, Peter T Kim, and 3 more authors
    Journal of the Korean Statistical Society, 2021

2020

  1. Adaptive log-density estimation
    Kwan-Young Bak, and Ja-Yong Koo
    Journal of the Korean Statistical Society, 2020
  2. Functional logistic regression based on constant splines for wafer classification
    Hyun-Jin Kim, Kwan-Young Bak, Jae-Kyung Shin, and 1 more author
    Journal of The Korean Data Analysis Society, 2020

2019

  1. Spatially adaptive binary classifier using B-splines and total variation penalty
    Kwan-Young Bak, Jae-Hwan Jhong, and Ja-Yong Koo
    Journal of Nonparametric Statistics, 2019

Recently Submitted Works

Last updated: June 1, 2025.


  1. R Programming with Workflow Design (Book)
    Kwan-Young Bak, and Gyeongmin Kim

    Political party preference, accountability, and risk perception: Crowd crush in South Korea
    Yookyung Eoh, Kwan-Young Bak, Seoyeon Kim, and 3 more authors

    On theoretical properties of a group-wise additive regression in reproducing kernel Hilbert space
    Jae-Hwan Jhong, Dong-Young Lee Kwan-Young Bak, and 1 more author

    Role of government and information trust in the public perception of environmental risk: a case study of the treated contaminated water discharge in fukushima
    Yookyung Eoh, Jong-min Choi, Jinju Kim, and 3 more authors

    Minimax optimality of kernel ridge regression when kernel eigenvalues decay polynomially or exponentially
    Kwan-Young Bak, Woojoo Lee

    Adaptive log-wavelet density estimation with resolution identification
    Kwan-Young Bak, Eun-Ji Lee, Jae-Hwan Jhong

    Super-precision change point detection using weighted total variation penalty
    Kwan-Young Bak, Eun-Ji Lee, Jae-Hwan Jhong