Jun Song

I am an Associate Professor in the Department of Statistics at Korea University. My research interests include dimension reduction, functional data analysis, statistical machine learning, and graphical models.

Prior to joining KU in 2021, I worked at The University of North Carolina at Charlotte as an Assistant Professor of Statistics and an Affiliated Faculty in the School of Data Science. I received a Ph.D. in Statistics at The Pennsylvania State University, B.S. in Statistics and B.S. in Mathematical Sciences at Seoul National University in South Korea.

Office: 330 CPSE Bldg. (정경관 330호)

My CV.

Last updated in September, 2022.

Education

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Academic Position

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Grants & Awards

• Young Scientist Grants (Outstanding Track), National Research Foundation of Korea, sole PI, 2022-2027
• UNC Charlotte, Faculty Research Grant Award, sole PI, 2018–2019
• Penn State, William Harkness Teaching Award, 2016
• Penn State, Jack and Eleanor Pettit Scholarship in Science, 2016
• Penn State, William Harkness Travel Award for JSM Seattle, 2015
• Penn State, August and Ruth Homeyer Graduate Fellowship, 2012–2013
• Penn State, University Graduate Fellowship, 2012–2013
• Seoul National University, Brain Korea 21 Fellowship, 2011–2012
• Korea Science and Engineering Foundation, National Science and Technology Scholarship, Korea, 2004–2010

Research Interests

• Sufficient dimension reduction
• Functional data analysis
• High-dimensional problem
• Statistical analysis of complex data structure, including functional data and tensor data
• Statistical machine learning

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Publications

^†: Graduate student, *: Corresponding author

• Ali Mahzarnia^† and Jun Song* (2022)

  Multivariate functional group LASSO: functional predictor selection

  PLoS ONE. 17(4), e0265940. [Link] [arXiv] [Code]
• Bing Li and Jun Song (2022)

  Dimension reduction for functional data based on weak conditional moments

  The Annals of Statistics. 50(1), 107-128. [Link]
• Jun Song and Kyongwon Kim (2021+)

  Sparse Multivariate Functional Principal Component Analysis

  Stat (Accepted) [Link]
• Paul H. Jung^† and Jun Song* (2021)

  Multivariate Neighborhood Trajectory Analysis: An Exploration of the Functional Data Analysis Approach

  Geographical Analysis [Link]
• Jun Song* and Bing Li (2021)

  Nonlinear and additive principal component analysis for functional data

  Journal of Multivariate Analysis, 181, 104675. [Link] [Code]
• Jun Song* (2019)

  On sufficient dimension reduction for functional data: Inverse moments based methods

  WIREs: Computational Statistics, 11(4), e1459. [Link]
• Holly Holt, Gabriel Villar, Weiyi Cheng, Jun Song, and Christina Grozinger (2018)

  Molecular, physiological and behavioral responses of honey bee (Apis mellifera) drones to infection with microsporidian parasites

  Journal of Invertebrate Pathology, 155, 14-24. [Link]
• Bing Li and Jun Song (2017)

  Nonlinear sufficient dimension reduction for functional data

  The Annals of Statistics, 45, 1059--1095.[Link] [Code]

Submitted

• Jun Song, Kyongwon Kim, and Jae Keun Yoo

  On Modeling after Dimension Reduction

  submitted.
• Jun Song, Kyongwon Kim, and Jae Keun Yoo

  On a Nonlinear Extension of the Principal Fitted Component Model

  submitted.

Instructor at

• STA 617: Advanced Statistical Machine Learning
Fall 2021.
• STA 518: Statistical Methodology for Data Analysis
Fall 2022.
• STA 433: Statistical Modeling for Deep Learning
Spring 2022.
• STAT 232: Mathematical Statistics
Fall 2021.
• STAT 221: Introduction to Probability Theory
Spring 2022, Fall 2022.

• STAT 7133/8133: Multivariate Analysis
Spring 2018, Spring 2019.
• STAT 6115/DSBA 6115: Statistical Learning with Big Data
Fall 2018, Fall 2019, Fall 2020, Fall 2021.
• STAT 3122: Probability and Statistics I
Spring 2019.
• STAT 2122: Introduction to Probability and Statistics
Spring 2020, Fall 2020, Spring 2021, Fall 2021.
• STAT 1221/1222: Elements of Statistics I / Introduction to Statistics
Fall 2017, Fall 2018, Fall 2019, Spring 2020.

• STAT 414/MATH 414: Introduction to Probability Theory
Summer 2016.
• STAT 318/MATH 318: Elementary Probability
Fall 2015 and Spring 2016.
• STAT 414: Introduction to Probability Theory
Summer 2015.

Current Students

• Jang, Sehun (장세훈)
sahoon1004@korea.ac.kr
• Ko, Younghun (고영헌)
leeje008@korea.ac.kr
• Chung, Seung Won (정승원, on leave for mandatory military service)
seanlisa@korea.ac.kr
• Shin, Dongcheol (신동철)
goodshin96@korea.ac.kr
• Yoo, DongKwun (유동균)
goodshin96@korea.ac.kr
• Kang, Dong Hyun (강동현)
goodshin96@korea.ac.kr
• Hong, SeungBeom (홍승범)
sbhong95@korea.ac.kr

Alumni

• Ali Mahzarnia (Ph.D. in 2021)
first job: Postdoctoral Researcher at Duke University)
• Tanmay Kenjale (B.S. Honor’s thesis in 2021)
• Avery Johnson (M.S. in 2021)
• Ruari Swift-christian (B.S. in 2020)
• Wei Zhang (M.S. in 2018)