Current Projects

Research Areas

Human Mobility Simulation and Analysis

  • Design and implementation of frameworks like Humonet and Patterns of Life for realistic human mobility modeling.
  • Simulation-based studies on mobility under heat conditions, epidemic spread, and ride-hailing systems.
  • Mobility data generation using location-based social networks and massive trajectory datasets.
  • Development and analysis of large-scale microtraffic simulations for transportation and urban planning.

Geospatial Simulation

  • Founding and organizing the GeoSim Workshop Series (ACM SIGSPATIAL).
  • Co-simulation frameworks for network attack generation and urban life modeling.

GeoAI

  • Development of GeoAI techniques for public health applications.
  • Development of urban foundation model and generative AI for:
    • Sustainable and resilient urban planning
    • Generative urban design
    • Environmental monitoring and resource management
    • Dynamic mobility and transportation systems

Spatiotemporal Data Mining and Query Processing

  • Algorithms for trajectory similarity, collision prediction, and continuous perspective queries.
  • Techniques for fine-grained diversification and semantically diverse path search on road networks.

Geovisual Analytics and Decision Support Tools

  • Tools like CyberGIS-Vis and Vulnerable Neighborhood Explorer (VNE) for visual analytics in disaster and public health contexts.
  • Platforms for interactive validation of human mobility simulations.

Privacy-Preserving Spatial Computing

  • Research on location anonymity and utility-privacy trade-offs in mobility data.
  • Experimental studies on training machine learning models with privacy-aware spatiotemporal data.

Representative Projects

Humonet: Human Mobility Network Simulation

  • Project: Framework for realistic modeling and simulation of human mobility networks.
  • Outcome: Supports large-scale agent-based simulations for urban planning and emergency response.

Spatial Computing for Epidemiology

  • Project: GeoSim and SpatialEpi workshops and research on disease spread modeling.
  • Outcome: Prescriptive analytics tools for epidemic intervention strategies.

GeoAnomaly Detection

  • Project: Detecting anomalous behavior in large-scale geospatial datasets.
  • Outcome: Advanced analytics for security and urban monitoring.

Heat-Aware Mobility Simulation

  • Project: Simulation-based analysis of mobility under extreme heat conditions.
  • Outcome: Insights into social group disparities and urban resilience.

GeoAI for Public Health

  • Project: Handbook contributions and applied research in GeoAI.
  • Outcome: AI-driven geospatial solutions for health and safety.

GeoSimulations