Research

My research holds behavior- and activity-based, evidence-based urban design as a consistent goal, and I have progressively extended the methodologies that support it. During my Ph.D. I became immersed in data science and statistics; at KAIST I expanded into deep learning and the smart city domain; and I have now entered a stage of directly integrating AI agent systems into architectural and urban design.

Publications

Working Papers

  • Park, Youngjun; Na, Jihye; Jang, Keonhee; Lee, Dongman; Kwon, Changhyun; Yoon, Yoonjin. (2025) “Food Deserts in Context: How Site-Specific Factors Reshape Food Deserts Discussion.” Submitted to npj Urban Sustainability (in-review).

2025

  • Lee, Hongju; Park, Youngjun; An, Jisun; Lee, Dongman. (2025) “Enhancing Regional Airbnb Trend Forecasting Using LLM-Based Embeddings of Accessibility and Human Mobility.” ASONAM 2025. [Published]
  • Park, Youngjun; Bae, Hyungchan; An, Jisun; Lee, Dongman. (2025) “A Model for Monthly, Local-Level Airbnb Changes Using Public Dataset.” Proceedings of the 7th International Conference on Tourism Research, 8(1), 214–223. [Published]

2024

  • Park, Youngjun; Han, Sumin. (2024) “Enhancing Population Predictions in Developing Area through Building Construction Data.” Association of European Schools of Planning (AESOP’24), poster session.
  • Han, Sumin; Park, Youngjun; Sabir, Sonia; An, Jisun; Lee, Dongman. (2024) “Improving Real Estate Appraisal with POI Integration and Areal Embedding.” DMO-FinTech’24: Workshop on Decision Making and Optimization in Financial Technologies (PAKDD’24). [Preprint]
  • Park, Youngjun; Han, Sumin; Park, Doyun; Bae, Hyeongchan; Nguyen, Thanh Tung; Lee, Dongman. (2024) “Integrative Geospatial Visualization for Urban Mobility Analysis.” Korea Computer Congress (KCC’24). [Published]
  • Elmoursi, Ahmad; Han, Sumin; Bae, Hyungchan; Park, Youngjun; Nguyen, Thanh Tung; Lee, Dongman. (2024) “Enhancing Geospatial Recommendations through Natural Language Processing with Large Language Models.” Korea Computer Congress (KCC’24). [Published]

2023

  • Han, Sumin; Park, Youngjun; Lee, Minji; An, Jisun; Lee, Dongman. (2023) “Enhancing Spatio-temporal Traffic Prediction through Urban Human Activity Analysis.” CIKM 2023, 689–698. [Published]
  • Park, Youngjun; Han, Sumin; An, Jisun; Lee, Dongman. (2023) “Encoding Urban Trajectory as a Language: Deep Learning Insights for Human Mobility Pattern.” Association of Collegiate Schools of Planning (ACSP ’23). [PDF]

2022

  • Park, Youngjun; Lee, Sunjae; Park, Sohyun. (2022) “Differences in park walking, comparing the physically inactive and active groups: data from mHealth monitoring system in Seoul.” International Journal of Environmental Research and Public Health, 19(1), 395. [Published]
  • Park, Youngjun. (2022) “Parks and Healthy Walking: smartphone physical activity recognition data for place and walking.” Urban Design Institute of Korea.

2021

  • Park, Youngjun; Chung, Haegwon; Park, Sohyun. (2021) “Changes of walking activity during the first cycle phases of COVID-19 pandemic: A case study of Seoul, Korea.” HERD: Health Environments Research & Design Journal, 14(4), 43–57. [Published]
  • Jeong, Jiwoon; Park, Youngjun; Park, Sohyun. (2021) “Safety-critical events in bicycle lanes in Jongno, Seoul.” Journal of Urbanism: International Research on Placemaking and Urban Sustainability, 16(1), 1–24. [Published]

2019

  • Park, Youngjun; Park, Sohyun. (2019) “Car-use and Non-work Travel of Housewives in Residential Neighborhood of Seoul.” Seoul Research, 20(1), 45–59. [Published]

2017

  • Park, Youngjun; Park, Sohyun. (2017) “A Study on the Location of Car-sharing in the Neighborhood Area and Replacement of Vehicle Ownership in Community.” Urban Design Institute of Korea.

Research Projects

GS–KAIST Smart City Research Center (2024–2025) Postdoctoral Researcher · KAIST · GS E&C

AI-based Non-contact Drug Detection Technology (2024–2025) Postdoctoral Researcher · KAIST · Ministry of Science and ICT · RS-2024-00459749

Multimodal Spatiotemporal Urban Prediction Models Based on Large Language Models (2024–2025) Postdoctoral Researcher · KAIST · National Research Foundation of Korea · RS-2024-00356597

Self-Learning Autonomic IoT Edge Computing Technology (2022–2025) Postdoctoral Researcher · SW StarLab Project, KAIST · Ministry of Science and ICT · RS-2019-II191126

Development of an AI-based Smart Mobility System (2022–2024) Participating Researcher · Daegu Metropolitan City · KAIST · N04230030

Text Analysis of Pedestrian-Related Government-Budget Projects (2022–2023) Research Service · Architecture & Urban Research Institute (AURI)

Comparative Study on Walking Practice within Neighborhoods via Individual GPS Trajectory Analysis (2019–2021) Research Grant Recipient · National Research Foundation of Korea, Next-Generation Researcher Program · Seoul National University

Pedestrian Data Analysis for WalkON Smartphone App Development (2019–2020) Research Team Lead, Affiliated Researcher (External Organization) · Swallaby Inc.

GIS Analysis for Spatial Welfare of Infants and Young Children (2018–2019) Research Assistant, Affiliated Researcher (External Organization) · Dept. of Architecture, Ewha Womans University

Comprehensive Urban Plan for the Huế City ODA Project, Vietnam (2015–2016) Research Assistant · Korea International Cooperation Agency (KOICA) · Graduate School of Environmental Studies, Seoul National University

Patents · Intellectual Property

  • Korean Patent (Filed) 10-2024-0108083 — Method and apparatus for estimating housing value using a neural network model
  • Korean Patent (Registered) 10-23679770000 — Method and server for providing commercial real estate information
  • Korean Copyright (Registered) C-2023-062275 — Geographic data visualization program
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