Experience

Korea Astronomy and Space Science Institute

• South Korea
• Research Services
• 1 - 100 Employee

• Principal Scientist

  • May 2023 - Present

  Daejeon, South Korea Studying Supervised and Unsupervised Learnings on big astronomical data sets - Applying Attention-based CNN to images of merging galaxies - Applying PointNet to cosmological point clouds - Applying TabNet to astronomical tabular data - Utilizing PySpark for processing big astronomical data sets such as Gaia DR3, Panstarrs DR1 and etc. - Utilizing Graph Theory for topologically analyzing cosmic structures

• Senior Scientist

  • Dec 2019 - Present

  Yuseong-gu, Daejeon, Korea



Korea Institute for Advanced Study (KIAS)

• Research Services
• 1 - 100 Employee

• Research Fellow

  • Oct 2017 - Sep 2019

  Dongdaemun-gu, Seoul, Korea Related Publications : • Hong, S., et al., "Constraining Cosmology with Big Data Statistics of Cosmological Graphs", 2020, MNRAS, 493 (4), 5972-5986 • Hong, S., Dey, A., Lee, K., Orsi, A., Gebhardt, K., et al., "Statistics of Two-point Correlation and Network Topology for Lyman Alpha Emitters at z~2.67", 2019, MNRAS, 483, 3950



The University of Texas at Austin

• United States
• Higher Education
• 700 & Above Employee

• Postdoctoral Researcher

  • Oct 2014 - Aug 2017

  Austin, Texas Area Related Publications : • Hong, S., Coutinho, B., Dey, A., Baraba ́si, A. -L., Vogelsberger, M., Hernquist, L., & Gebhardt, K. , “Discriminating Topology in Galaxy Distributions using Network Analysis”, 2016, MNRAS, 459, 2690 • Hong, S., & Dey, A., “Network Analysis of Cosmic Structures : Network Centrality and Topological Environment”, 2015, MNRAS, 450, 1999



NOAO

• United States
• Research Services
• 1 - 100 Employee

• Postdoctoral Research Fellow

  • Oct 2011 - Sep 2014

  Tucson, Arizona Area Related Publications : • Hong, S., Dey, A., & Prescott, K. M., “On the Automated and Objective Detection of Emission Lines in Faint-Object Spectroscopy”, 2014, PASP, 126, 1048