Yunsik Kim

Yunsik joined the PhD program in Fall 2024. His research focuses on developing spatial accessibility measurements, analyzing emerging urban transportation systems such as micromobility and on-demand microtransit, and addressing uncertainty in geospatial data science. His methodological expertise lies in geographic information science (GIScience), geospatial artificial intelligence (GeoAI), spatial statistics, and high-performance computing. His dissertation develops a spatial accessibility measurement framework using deep learning algorithms. The framework incorporates place-based and people-based perspectives and accounts for variation across space and time. Yunsik received a BA in Geography Education (2021) and a Master of Geography (2023) from Dongguk University, South Korea.

Recent publications:

Kim, Y., & Yang, B. (2026). GeoAI-driven analysis of urban activity shifts using geotagged social media data across the COVID-19 pandemic. Environment and Planning B: Urban Analytics and City Science, 53(8), 1839–1858. https://doi.org/10.1177/23998083251413306

Kim, Y., & Eum, Y. (2025). Improving telehealth accessibility assessment with a demographics-weighted two-step virtual catchment area (DW-2SVCA) method. Computational Urban Science, 5, 59. https://doi.org/10.1007/s43762-025-00218-5

Recent scholarly presentations:

Kim, Y., & Eum, Y. (2026). From fixed impedance to learnable interactions: A graph attention network-based approach to spatial accessibility assessment. 2026 Annual Meeting of the American Association of Geographers (AAG), San Francisco, CA, March 17–21, 2026.

Kim, Y., & Eum, Y. (2025). Graph attention-based accessibility modeling via origin-destination bipartite network. 2025 Annual Meeting of the Southeastern Division of the American Association of Geographers (SEDAAG), Lexington, KY, November 23–24, 2025.

Kim, Y., & Eum, Y. (2025). Demographics-weighted two-step virtual catchment area (DW-2SVCA) for an improved telehealth accessibility measurement. 2025 Annual Meeting of the American Association of Geographers (AAG), Detroit, MI, March 24–28, 2025.

Areas of research interest: 

Geographic information science, Spatial analysis & modeling, Spatial accessibility, Transport geography, Health geography,

Advisor’s name:  Dr. Youngseob Eum