A visualization system for space-time and multivariate patterns (VIS-STAMP).
The research reported here integrates computational, visual, and cartographic methods to develop a geovisual analytic approach for exploring and understanding spatio-temporal and multivariate patterns. The developed methodology and tools can help analysts investigate complex patterns across multivariate, spatial, and temporal dimensions via clustering, sorting, and visualization. Specifically, the approach involves a self-organizing map, a parallel coordinate plot, several forms of reorderable matrices (including several ordering methods), a geographic small multiple display, and a 2-dimensional cartographic color design method. The coupling among these methods leverages their independent strengths and facilitates a visual exploration of patterns that are difficult to discover otherwise. The visualization system we developed supports overview of complex patterns and, through a variety of interactions, enables users to focus on specific patterns and examine detailed views. We demonstrate the system with an application to the IEEE InfoVis 2005 Contest data set, which contains time-varying, geographically referenced, and multivariate data for technology companies in the US.
Guo
Diansheng
D
Department of Geography, University of South Carolina, Columbia 29208, USA. guod@sc.edu
Chen
Jin
J
MacEachren
Alan M
AM
Liao
Ke
K
D000465:Algorithms; D003196:Computer Graphics; D003198:Computer Simulation; D003627:Data Interpretation, Statistical; D040362:Geographic Information Systems; D016247:Information Storage and Retrieval / Q000379:methods*; D015999:Multivariate Analysis; D012984:Software; D014584:User-Computer Interface