Research

Our research integrates geospatial data science, AI, and high-performance computing to develop scalable analytical methods, understand complex urban dynamics, and transform spatial data into actionable knowledge for addressing environmental, societal, and infrastructure challenges.

All

2026

VLM4S: A Vision‐Language Model Framework for Geographically and Environmentally Informed Soundscape Assessment

Pengyu Chen, Sicheng Wang, Fangzheng Lyu, John A. Kupfer, Cuizhen Wang, Xiao Huang, Tiancheng Li

Transactions in GIS  ·  01 Sep 2026  ·  doi:10.1111/tgis.70394

Customized decision-making support per location's characteristics of spatial accessibility: A case study of emergency healthcare in New York City

Jinwoo Park, Fangzheng Lyu, Alexander Michels, Ian Zhang, Shaowen Wang

Computers, Environment and Urban Systems  ·  01 Sep 2026  ·  doi:10.1016/j.compenvurbsys.2026.102458

Does stadium construction drive surrounding urban development? Evidence from spatiotemporal impacts of large-scale stadiums in China

Shuqi Jin, Yang Shao, Robert Oliver, Fangzheng Lyu

Applied Geography  ·  01 May 2026  ·  doi:10.1016/j.apgeog.2026.103992

Converging high-performance computing and machine learning for geospatial discovery and innovation

Fangzheng Lyu, Yunfan Kang, Shaowen Wang

Annals of GIS  ·  03 Mar 2026  ·  doi:10.1080/19475683.2026.2639769

FG-TreeSeg: Flow-Guided Tree Crown Segmentation Without Instance Annotations

Pengyu Chen, Fangzheng Lyu, Sicheng Wang, Cuizhen Wang

IEEE Geoscience and Remote Sensing Letters  ·  01 Jan 2026  ·  doi:10.1109/LGRS.2026.3693969

2025

Analysis of the Multi-Scale Spatial Heterogeneity of Factors Influencing the Electric Bike-Sharing Travel Demand in Small and Medium-Sized Cities

Xin Wang, Zhiyuan Peng, Xuefeng Li, Mingyang Du, Fangzheng Lyu, Jeon-Young Kang, Kangjae Lee, Dong Liu

Sustainability  ·  21 Nov 2025  ·  doi:10.3390/su172310437

A Video Machine Learning Framework for Spatiotemporal Analysis of Complex Urban Dynamics

Fangzheng Lyu, Daniel Kiv, Xinlin Ma, Shaowen Wang

Transactions in GIS  ·  01 Aug 2025  ·  doi:10.1111/tgis.70096

Evaluating the Evaluation Matrices: Integrating Spatial Assessment in Geospatial AI Model Training and Evaluation

Fangzheng Lyu

I-GUIDE Forum Proceedings  ·  21 Jul 2025  ·  doi:10.5703/1288284317905

Revitalizing Cities: The 5R Framework Approach to Urban Retrofitting and Big Data Insights

Xinlin Ma, Yan Song, Fangzheng Lyu, Yang Yang, Yuhua Wang, Xijing Li, Shaopeng Zhong

Growth and Change  ·  03 Jan 2025  ·  doi:10.1111/grow.70018

Multistream STGAN: A Spatiotemporal Image Fusion Model With Improved Temporal Transferability

Fangzheng Lyu, Zijun Yang, Chunyuan Diao, Shaowen Wang

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing  ·  01 Jan 2025  ·  doi:10.1109/JSTARS.2024.3506879

Converging GeoAI and CyberGIS for Human Geography

Fangzheng Lyu

Springer Geography  ·  01 Jan 2025  ·  doi:10.1007/978-3-031-87421-5_8

2024

NetPointLib: Library for Large-Scale Spatial Network Point Data Fusion and Analysis

Yunfan Kang, Fangzheng Lyu, Shaowen Wang

Practice and Experience in Advanced Research Computing 2024: Human Powered Computing  ·  17 Jul 2024  ·  doi:10.1145/3626203.3670615

From Individual Motivation to Geospatial Epidemiology: A Novel Approach Using Fuzzy Cognitive Maps and Agent-Based Modeling for Large-Scale Disease Spread

Zhenlei Song, Zhe Zhang, Fangzheng Lyu, Michael Bishop, Jikun Liu, Zhaohui Chi

Sustainability  ·  13 Jun 2024  ·  doi:10.3390/su16125036

Mapping dynamic human sentiments of heat exposure with location-based social media data

Fangzheng Lyu, Lixuanwu Zhou, Jinwoo Park, Furqan Baig, Shaowen Wang

International Journal of Geographical Information Science  ·  30 Apr 2024  ·  doi:10.1080/13658816.2024.2343063

A Convergence Framework for Integrating CyberGIS Education and Research on I-GUIDE Platform

Fangzheng Lyu, Furqan Baig, Yunfan Kang, Erick Li, Anand Padmanabhan, Shaowen Wang

I-GUIDE Forum 2024: Convergence Science and Geospatial AI for Environmental Sustainability  ·  01 Jan 2024  ·  doi:10.5703/1288284317798

2023

From the coast to the interior: global economic evolution patterns and mechanisms

Xiaoming Jin, Weixin Luan, Jun Yang, Wenze Yue, Shulin Wan, …, Xiangming Xiao, Bing Xue, Yue Dou, Fangzheng Lyu, Shaohua Wang

Humanities and Social Sciences Communications  ·  20 Oct 2023  ·  doi:10.1057/s41599-023-02234-4

A cyberGIS approach to exploring neighborhood‐level social vulnerability for disaster risk management

Su Yeon Han, Jeon‐Young Kang, Fangzheng Lyu, Furqan Baig, Jinwoo Park, Danielle Smilovsky, Shaowen Wang

Transactions in GIS  ·  28 Sep 2023  ·  doi:10.1111/tgis.13106

Examine the environmental inequity impact of urban heat mitigation on redlining legacy: case study of Charlotte’s retrofitting, 2001–2020

Xijing Li, Xinlin Ma, Fangzheng Lyu, Yan Song

Frontiers in Environmental Science  ·  27 Sep 2023  ·  doi:10.3389/fenvs.2023.1218819

Daily changes in spatial accessibility to ICU beds and their relationship with the case-fatality ratio of COVID-19 in the state of Texas, USA

Jinwoo Park, Alexander Michels, Fangzheng Lyu, Su Yeon Han, Shaowen Wang

Applied Geography  ·  01 May 2023  ·  doi:10.1016/j.apgeog.2023.102929

Large-scale Google Street View Images for Urban Change Detection

Fangzheng Lyu, Xinlin Ma, Yan Song, Eric Zhu, Shaowen Wang

I-GUIDE Forum 2023: Harnessing the Geospatial Data Revolution for Sustainability Solutions  ·  01 Jan 2023  ·  doi:10.5703/1288284317674

2022

Ndist2vec: Node with Landmark and New Distance to Vector Method for Predicting Shortest Path Distance along Road Networks

Xu Chen, Shaohua Wang, Huilai Li, Fangzheng Lyu, Haojian Liang, Xueyan Zhang, Yang Zhong

ISPRS International Journal of Geo-Information  ·  09 Oct 2022  ·  doi:10.3390/ijgi11100514

An integrated cyberGIS and machine learning framework for fine-scale prediction of Urban Heat Island using satellite remote sensing and urban sensor network data

Fangzheng Lyu, Shaohua Wang, Su Yeon Han, Charlie Catlett, Shaowen Wang

Urban Informatics  ·  09 Sep 2022  ·  doi:10.1007/s44212-022-00002-4

Spatiotemporal assessments of nutrients and water quality in coastal areas using remote sensing and a spatiotemporal deep learning model

Sensen Wu, Jin Qi, Zhen Yan, Fangzheng Lyu, Tao Lin, Yuanyuan Wang, Zhenhong Du

International Journal of Applied Earth Observation and Geoinformation  ·  01 Aug 2022  ·  doi:10.1016/j.jag.2022.102897

CyberGIS for Scalable Remote Sensing Data Fusion

Fangzheng Lyu, Zijun Yang, Zimo Xiao, Chunyuan Diao, Jinwoo Park, Shaowen Wang

Practice and Experience in Advanced Research Computing  ·  08 Jul 2022  ·  doi:10.1145/3491418.3535145

A deep trajectory clustering method based on sequence‐to‐sequence autoencoder model

Chao Wang, Fangzheng Lyu, Sensen Wu, Yuanyuan Wang, Liuchang Xu, Feng Zhang, Shaowen Wang, Yongheng Wang, Zhenhong Du

Transactions in GIS  ·  08 Feb 2022  ·  doi:10.1111/tgis.12905

2021

A vector-based method for drainage network analysis based on LiDAR data

Fangzheng Lyu, Zewei Xu, Xinlin Ma, Shaohua Wang, Zhiyu Li, Shaowen Wang

Computers & Geosciences  ·  01 Nov 2021  ·  doi:10.1016/j.cageo.2021.104892

Multi-scale CyberGIS Analytics for Detecting Spatiotemporal Patterns of COVID-19

Fangzheng Lyu, Jeon-Young Kang, Shaohua Wang, Su Yeon Han, Zhiyu Li, Shaowen Wang

Human Dynamics in Smart Cities  ·  01 Jan 2021  ·  doi:10.1007/978-3-030-72808-3_11

Integrating CyberGIS and Urban Sensing for Reproducible Streaming Analytics

Shaowen Wang, Fangzheng Lyu, Shaohua Wang, Charles E. Catlett, Anand Padmanabhan, Kiumars Soltani

The Urban Book Series  ·  01 Jan 2021  ·  doi:10.1007/978-981-15-8983-6_36

2020

Rapidly measuring spatial accessibility of COVID-19 healthcare resources: a case study of Illinois, USA

Jeon-Young Kang, Alexander Michels, Fangzheng Lyu, Shaohua Wang, Nelson Agbodo, Vincent L. Freeman, Shaowen Wang

International Journal of Health Geographics  ·  14 Sep 2020  ·  doi:10.1186/s12942-020-00229-x

2019

Reproducible Hydrological Modeling with CyberGIS-Jupyter

Fangzheng Lyu, Dandong Yin, Anand Padmanabhan, Youngdon Choi, Jonathan L. Goodall, Anthony Castronova, David Tarboton, Shaowen Wang

Proceedings of the Practice and Experience in Advanced Research Computing on Rise of the Machines (learning)  ·  28 Jul 2019  ·  doi:10.1145/3332186.3333052

Bridging Local Cyberinfrastructure and XSEDE with CyberGIS-Jupyter

Anand Padmanabhan, Dandong Yin, Fangzheng Lyu, Shaowen Wang

Proceedings of the Practice and Experience in Advanced Research Computing on Rise of the Machines (learning)  ·  28 Jul 2019  ·  doi:10.1145/3332186.3333257