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Professors

Byeong U. Park Professor

MajorNonparametric structured models, Semiparametric inference, Non-Euclidean data analysis
Office25-332
Contact 880-6576
Emailbupark@snu.ac.kr
RESEARCH AREAS

Nonparametric structured models

Semiparametric inference

Non-Euclidean data analysis

DEGREES
1982.02
B.Sc., Department of Computer Science and Statistics, Seoul National University
1984.02
M.Sc., Department of Computer Science and Statistics, Seoul National University
1987.05
Ph.D., Department of Statistics, University of California at Berkeley(under supervision of Peter J. Bickel)
BIOGRAPHY

[Academic positions]

1987 – 1988

Assistant Professor, In the Department of Statistics, University of North Carolina at Chapel Hill

1988 – 1992

Assistant Professor, In the Department of Statistics, Seoul National University

1992 – 1999

Associate Professor, In the Department of Statistics, Seoul National University

1999 – present

Full Professor, In the Department of Statistics, Seoul National University

1999 – 2002

Chairman, In the Department of Statistics, Seoul National University

[ Membership of learned societies ]

Member of Bernoulli Society

Since 1995
Elected member of International Statistical Institute since
Since 1985
Member of Institute of Mathematical Statistics since
Since 1985
Member of American Statistical Association
Since 1985
Member of Korean Statistical Society
[ Editorial positions ]
1992.01.01 – 1997.12.31
Associate Editor: Computational Statistics
1996.01.01 – 1999.12.31
Associate Editor: Journal of Korean Statistical Society
2000.01.01 – 2001.12.31
Editor: Journal of Korean Statistical Society

2002.01.01 – 2004.12.31

Editor-in-Chief: Journal of Korean Statistical Society

2003.09.01 – 2017.10.31

Associate Editor: Journal of Nonparametric Statistics

2006.01.01 – 2017.10.31

Associate Editor: Annals of Institute of Statistical Mathematics
2006.01.01 – 2009.12.31
Associate Editor: International Journal of Statistics and Management Systems
2008.01.01 – 2009.12.31
Editorial Board: IMS Lecture Notes and Monograph Series
2008.01.01 – 2009.12.31
Editorial Board: IMS Collections

2008.01.01 – 2016.12.31

Editor-in-Chief: Journal of Korean Statistical Society

2016.01.01 – present

Advisory Board member: Econometrics and Statistics

2017.01.01 – present

Co-editor: Computational Statistics and Data Analysis

2007.01.01 – 2009.12.31

2013.01.01 – present

Associate Editor: Annals of Statistics

2017.01.01 – present

Associate Editor: Journal of American Statistical Association

[ Other posts ]

1999 – 2005

Head, Brain Korea 21 “Group for Nonparametric and Semiparametric Estimation of Functions”

2004.09 -2005.08,
2007.08 – 2008.08
IMS Committee on Nominations
2005. 03.01 – 2005.08.31
Founding Committee for National Mathematical Science Research Institute
2006.01.01 – 2007.12.31
Director for Research Affairs, The Korean Statistical Society

2006 – 2012

Head, Brain Korea 21 “Research Team for High-dimensional Data and Models”

2010.01.01 – 2011.12.31
Vice President, The Korean Statistical Society
2006.11.17 – 2009.12.15
IMS committee on Asia and Pacific Rim Meeting
2009.12.16 – 2014.12.31
Co-Chair, IMS committee on Asia and Pacific Rim Meeting
2013.08 – 2017.08
Ordinary Council member, Bernoulli Society
2015.07.27 – 31

Bernoulli Society Representative, Scientific Program Committee, 60th World Statistics Congress (Rio, Brazil)

2013.08 – 2017.08
Elected Council member, International Statistical Institute

2015.04 – 2019.08

Scientific Secretary, Bernoulli Society

2016 – 2020

Head, Brain Korea 21 Plus “Next Generation Training Program for Statistical Sciences”

2017.08 – 2020.08

Elected Council, Institute of Mathematical Statistics

2019.08 – 2023.08

Vice President, International Statistical Institute

2020.08 – 2023.08

IMS Committee on Fellows

2020.09 – 2027.08

Head, Brain Korea 21 FOUR “SNU Future Generation Training Program for Statistical Sciences

[ Organization of International Scientific Meetings (since 2001) ]
2001.08.21 – 22
Statistical Symposium in Commemoration of the 30th Anniversary of the Korean Statistical Society & the 53rd Session of ISI: Modern Statistical Methods with Prospect and Retrospect (Seoul)
2001.07.19 – 20
2002 SRCCS International Statistical Workshop(Seoul)
2002.09.07 – 10
International Session on “Nonparametric Curve Estimation” in the 70th Annual Meeting of the Japan Statistical Society (Tokyo)
2005.04.05 – 12
The 55th ISI Session IPM 22 “Local Parametric Modelling for Curve Estimation” (Sydney)
2005.06.15 – 16
2005 SRCCS International Statistical Workshop (Seoul)
2006.12.13 – 15
2006 Taipei International Statistics Workshop (Taipei)
2008.12.19
KSS-JSS-CSA International Sessions in 2008 CSA Annual Meeting (Taipei)
2009.06.28 – 2009.07.01
Chair of Local Organizing Committee and Scientific Program Committee member. The 1st Institute of Mathematical Statistics – Asia Pacific Rim Meeting (Seoul)
2009.09.07 – 09
KSS-JSS-CSA International Sessions in 2009 Japan Statistical Society Annual Meeting (Kyoto)
2012.07.01 – 04
Co-Chair of Scientific Program Committee. The 2nd Institute of Mathematical Statistics – Asia Pacific Rim Meeting (Japan)
conference website: http://www.ims-aprm2012.org/
2011.08.21 – 26
The 58th World Statistics Congress Invited Paper Session 108 “Carrers for Youth” (Dublin)
2012.05.01 – 03
The 2012 Taipei International Statistics Workshop, Organizing Committee (Taipei)
2013.07.20 – 25
The 29th European Meeting of Statisticians, Invited Paper Session “Function Estimation” (Budapest)
2013.08.25 – 30

Theme Day Co-Organizer, The 59th World Statistics Congress (Hong Kong)

conference website: http://www.isi2013.hk/
2014

Co-Chair of Scientific Program Committee. The Third Institute of Mathematical Statistics – Asia Pacific Rim Meeting (Taipei)

2015.07.27 – 31
Bernoulli Society Representative, Scientific Program Committee, 60th World Statistics Congress (Rio, Brazil)

2015.12.12 – 14

Co-Chair, The 8th International Conference of the ERCIM WG on Computational and Methodological Statistics (CMStatiatics 2015, University of London)

2017.07.16 – 21

Chair, Short Course Committee for the 61st World Statistics Congress (Marrakech) conference website: http://www.isi2017.org/)

SELECTED PUBLICATIONS
1990
Comparison of data-driven bandwidth selectors (with J.S. Marron). Journal of the American Statistical Association, 85, 66-72
Comparison of data-driven bandwidth selectors (with J.S. Marron). Journal of the American Statistical Association, 85, 66-72
Efficient estimation in the two sample semiparametric location-scale model. Probability Theory and Related Fields, 86, 21-39
Asymptotic minimax estimation in semiparametric models. Probability Theory and Related Fields, 88, 107-120
A simple root n bandwidth selector (with M.C. Jones and J.S. Marron). The Annals of Statistics, 19, 1919-1932
Smoothed cross-validation (with P. Hall and J.S. Marron). Probability Theory and Related Fields, 92, 1-20
A cross-validatory choice of smoothing parameter in adaptive location estimation. Journal of the American Statistical Association, 88, 848-854
Efficient semiparametric estimation in stochastic frontier model (with L. Simar). Journal of the American Statistical Association, 89, 929-936
Versions of kernel-type regression estimators (with M.C. Jones and S.J. Davies). Journal of the American Statistical Association, 89, 825-832
Estimation of non-sharp support boundaries (with W. Haerdle and A.B. Tsybakov). Journal of Multivariate Analysis, 55, 205-218
Stochastic panel frontiers : a semiparametric approach (with R.C. Sickles and L. Simar). Journal of Econometrics, 84, 273-301
A note on the convergence of nonparametric DEA estimators for production efficiency scores (with A. Kneip and L. Simar). Econometric Theory, 14, 783-793
On polynomial estimators of frontiers and boundaries (with P. Hall and S. Stern). Journal of Multivariate Analysis, 66, 71-98
On estimation of monotone and concave frontier functions (with I. Gijbels, E. Mammen and L. Simar). Journal of the American Statistical Association, 94, 220-228
The FDH estimator for productivity efficiency scores: Asymptotic properties (with L. Simar and Ch. Weiner). Econometric Theory, 16, 855-877
New methods for bias correction at endpoints and boundaries (with P. Hall). The Annals of Statistics, 30, 1460-1479
On local likelihood density estimation (with W.C. Kim and M.C. Jones). The Annals of Statistics, 30, 1480-1495
Rolling-ball method for estimating the boundary of the support of a point-process intensity (with P. Hall and B. Turlach). Annales de l’Institut Henri Poincare-Probabilites et Statistiques, 38, 959-971
Semiparametric efficient estimation of AR(1) panel data models (with R.C. Sickles and L. Simar). Journal of Econometrics, 117, 279-309
Nonparametric detection of correlated errors (with T. Y. Kim, D. Kim and D. G. Simpson). Biometrika, 91, 491-496
Bandwidth choice for local polynomial estimation of smooth boundaries (with P. Hall). Journal of Multivariate Analysis, 91, 240-261
Bandwidth selection for smooth backfitting in additive models (with E. Mammen). The Annals of Statistics, 33, 1260-1294
A simple smooth backfitting method for additive models (with E. Mammen). The Annals of Statistics, 34, 2252-2271.
Estimation and testing for varying coefficients in additive models with marginal integration (with L. Yang, Lan Xue and W. Härdle). Journal of the American Statistical Association, 101, 1212-1227
Large Sample Approximation of the Distribution for Convex-Hull Estimators of Boundaries (with S.-O. Jeong). Scandinavian Journal of Statistics, 33, 139-151
A simple estimator of error correlation in nonparametric regression models (with T. Y. Kim, Y. K. Lee, and C. Park). Scandinavian Journal of Statistics, 33, 451-462
Nonparametric stochastic frontiers: a local maximum likelihood approach (with S. K. Kumbhakar, L. Simar and E. G. Tsionas). Journal of Econometrics, 137, 1-27
A method for projecting functional data onto a low-dimensional space (with P. Hall and Y. K. Lee). Journal of Computational and Graphical Statistics,16, 799-812

Smooth backfitting in generalized additive models (with K. Yu. and E. Mammen). The Annals of Statistics, 36, 228-260

Choice of neighbour order in nearest-neighbour classification (with P. Hall and R. Samworth). The Annals of Statistics, 36, 2135-2152
Time series modelling with semiparametric factor dynamics (with S. Borak, Wolfgang Hardle and Enno Mammen). Journal of the American Statistical Association, 104, 284-298

Bootstrap-based penalty choice for the lasso, achieving oracle performance (with P. Hall, E. R. Lee). Statistica Sinica, 19, 449-471

Tie-respecting bootstrap methods for estimating distributions of set and functions of eigenvalues (with P. Hall, Y. K. Lee, D. Paul). Bernoulli, 15, 380-401
L_2-boosting in kernel regression (with Y. K. Lee and S. Ha). Bernoulli, 15, 599-613
Using bimodal kernel for inference in nonparametric regression with correlated errors (with T. Y. Kim and M. S. Moon). Journal of Multivariate Analysis, 100, 1487-1497
Asymptotic distribution of conical-hull estimators of directional edges (with Seok-Oh Jeong and Leopold Simar). The Annals of Statistics, 38, 1320-1340
Sparse varying coefficient models for longitudinal data (with Hoh Suk Noh). Statistica Sinica, 20, 1183-1202
Backfitting and smooth backfitting for additive quantile models (with Y. K. Lee, Enno Mammen) The Annals of Statistics, 38, 2857-2883
Testing in nonparametric varying coefficient additive models (with Jun H. Hwang and M. S. Park). Statistica Sinica, 21, 749-778
Semiparametric regression: efficiency gains from modeling the nonparametric part (with K. Yu and E. Mammen). Bernoulli, 17, 736-748
Projection-type estimation for varying coefficient regression models (with Y. K. Lee and Enno Mammen). Bernoulli, 18, 177-205
Principal component analysis in very high-dimensional space (with Y. K. Lee and E. R. Lee). Statistica Sinica, 22, 933-956
Flexible generalized varying coefficient regression models (with Y. K. Lee and Enno Mammen). Annals of Statistics, 40, 1906-1933
On projection-type estimators of multivariate isotonic functions (with Abdelaati Daouia). Scandinavian Journal of Statistics, 40, 363-386
Time-varying additive models for longitudinal data (with Xiaoke Zhang and Jane-Ling Wang). Journal of the American Statistical Association, 108, 983-998
Model selection via Bayesian information criterion for quantile regression models (with E. R. Lee and H. Noh). Journal of the American Statistical Association, 109, 216-229
Backfitting and smooth backfitting in varying coefficient quantile regression (with Y. K. Lee and Enno Mammen). Econometrics Journal, 17, 20-38

Asymptotics for in-sample density forecasting (with Y. K. Lee, Enno Mammen and Jens P. Nielsen). Annals of Statistics, 43, 620-651

Varying coefficient regression models: A review and new developments (with Enno Mammen, Young Kyung Lee and Eun Ryung Lee). International Statistical Review, 83, 36-76 (with discussion and rejoinder, 2015).

Data envelope fitting with constrained polynomial splines (with Daouia, Abdelaati and Noh, Hohsuk). Journal of Royal Statistical Society, Series B, 78, 3-30

Operational time and in-sample density forecasting (with Y. K. Lee, Enno Mammen and Jens P. Nielsen). Annals of Statistics, 45, 1312-1341 (2017).

Smooth backfitting for errors-in-variables additive models (with K. Han). Annals of Statistics, 46, 2216-2250 (2018).

Smooth backfitting for additive modeling with small errors-in-variables, with an application to additive functional regression for multiple predictor functions (with K. Han, Hans-Georg Mueller). Bernoulli, 24, 1233-1265 (2018).

Estimation of errors-in-variables partially linear additive models (with E. R. Lee and K. Han). Statistica Sinica, 28, 2353-2373 (2018).

Singular additive models for function to function regression (with Garliver Chen, Wenwen Tao and Hans-Georg Mueller). Statistica Sinica, 28, 2497-2520 (2018).

Time-dynamic varying coefficient models for longitudinal data (with Kyeongeun Lee, Young Kyung Lee and Seong J. Yang). Computational Statistics and Data Analysis,123, 50-65 (2018).

Generalised additive dependency inflated models including aggregated covariate (with Y. K. Lee, Enno Mammen and Jens P. Nielsen). Electronic Journal of Statistics, 13, 67-93 (2019).

Additive functional regression for densities as responses (with K. Han, Hans-Georg Mueller). Journal of American Statistical Association, 115, 997-1010 (2020).

Additive regression with Hilbertian responses (with J. M. Jeon). Annals of Statistics, 48, 2671-2697 (2020).

Nonparametric regression with parametric help (with Y. K. Lee, E. Mammen and J. P. Nielsen). Electronic Journal of Statistics, 14, 3845-3868 (2020).

Smooth backfitting for errors-in-variables varying coefficient regression models (with Kyunghee Han and Young K. Lee). Computational Statistics and Data Analysis. https://doi.org/10.1016/j.csda.2019.106909(2020).

Intrinsic Hoelder classes of density functions on Riemannian manifolds and lower bounds to convergence rates (with Dohyeong Ki). Statistics and Probability Letters. https://doi.org/10.1016/j.spl.2020.108959(2021).

Additive regression with non-Euclidean responses and predictors (with Jeong Min Jeon and I. van Keilegom). Annals of Statistics, in print. 

Additive regression for predictors of various natures and possibly incomplete Hilbertian responses (with Jeong Min Jeon and Ingrid van Keilegom). Electronic Journal of Statistics, 15, 1473-1548 (2021).

AWARDS

2019

The 33rd Inchon Award of Science and Technology

2018

Carver Medal, Institute of Mathematical Statistics

2018

Invited lecture in the International Congress of Mathematicians

2017

Seoul National University Research Award

2016

Laplace Lecture, The 9th World Congress in Probability and Statistics

2014
National Academy of Sciences Award
2014
Order of Service Merit, Republic of Korea

2013

Seoul National University – College of Natural Sciences Research Grand Prize
2009
Fellow, Korean Academy of Science and Technology
2006
The 1st Korean Statistical Society Gallup-Korea Award

2005

Fellow of Institute of Mathematical Statistics
2005
Fellow of American Statistical Association

1995

The 5th Korean Federation of Science and Technology Societies Award for Outstanding Papers

1992

The 1st Junior Statistician Award, Korean Statistical Society