JLBS publication: Graph-based Vehicle Trajectory Analysis

It is difficult to extract meaningful patterns from massive trajectory data. One of the main challenges is to characterize, compare, and generalize trajectories to find overall patterns and trends. This research proposes a graph-based approach that converts trajectory data to a graph based representation, treats it as a complex network, and detects hidden community structures that can help characterize trajectories. [ Manuscript ]

IJGIS Publication: Local Entropy Map...

Guo, D (2010). "Local Entropy Map: A Non-Parametric Approach to Discover Spatially Varying Multiivariate Relationships". International Journal of Geographical Information Science. (in press).  Manuscript ...

IEEE TVCG Publication on Flow Mapping

Guo, D. (2009), "Flow Mapping and Multivariate Visualization of Large Spatial Interaction Data", IEEE Transactions on Visualization and Computer Graphics, vol. 15, no. 6, pp. 1041-1048. [Article Link]

AAG 2010 Special Session on Data Mining (3 sessions)

I am organizing special sessions on "Spatial Data Mining and Exploratory Data Analysis". >>>AAG Meeting

CEUS Special Issue: Spatial Data Mining - Methods and Applications

Special Issue for journal Computers, Environment and Urban Systems, vol. 33, no. 6 (November, 2009): Spatial Data Mining–Methods and Applications, edited by Diansheng Guo and Jeremy Mennis.

Software on Regionalization (REDCAP)

The REDCAP software package for regionalization, which implements the algorithms presented in my IJGIS paper Regionalization with Dynamically Constrained Agglomerative Clustering and Partitioning (REDCAP)", has been released (First release in June, 2008, latest update in December, 2009). >> Download

NSF CAREER Award

I received the prestigious National Science Foundation (NSF) CAREER Award for 2008. The researchtopic is "Extracting and Understanding Complex Patterns in Spatial Interactions—A Computational-Visual Framework",jointly funded by two NSF programs: Geography and Regional Science and Method, Measure, and Statistics.

New Software Release

A software package for optimal linear ordering is available and free for download, which includes a Java jar file, an example dataset, and a brief user manual.

IJGIS Publication on Spatial Interaction

Guo, D. (2007),"Visual Analytics of Spatial Interaction Patterns for Pandemic Decision Support".International Journal of Geographical Information Science, Special Issue on Visualization, Analytics & Spatial Decision Support.21(8), pp. 859-877 [PDF][Journal Website]

EPB Publication on Visualization

Guo, D., K. Liao, M. Morgan (2007), "Visualizing Patterns in a Global Terrorism Incident Database".Environment and Planning B: Planning and Design.34, pp. 767-784.[PDF][Journal Website]

IEEE TVCG Publication on Visual Analytics

Guo, D., J. Chen, A. M. MacEachren, and K. Liao (2006), "A Visualization System for Spatio-Temporal and Multivariate Patterns (VIS-STAMP)" IEEE Transactions on Visualization and Computer Graphics, vol. 12, no. 6, pp. 1461-1474. [Article Link] [Featured on the Journal Cover]