Document Type

Conference Paper

Peer Reviewed


Publication Date


Journal/Book/Conference Title

Auto-Carto 2005 Research Symposium

Conference Location

Las Vegas, Nevada

DOI of Published Version


Total Pages

11 pages


Multivariate choropleth maps are often used to compare patterns of different spatial variables. This approach can be implemented by simultaneously drawing a series of choropleth maps, with each representing a particular variable. In this paper, we develop an evolutionary algorithm that can be used to generate a set of classifications that allow a user to explore the spatial patterns of multiple choropleth maps in terms of their visual correlation. Synthetic and census data are used to demonstrate the effectiveness of our approach. We also discuss the role of our approach in an interactive mapping environment and its implication for spatial data mining.


multivariate choropleth map, optimization, spatial visualization

Published Article/Book Citation

Subsequently published as "Supporting the Comparison of Choropleth Maps Using an Evolutionary Algorithm." Cartography and Geographic Information Science, Volume 32, 2005 - Issue 4, pages 347-358


Copyright © 2005 Ningchuan Xiao and Marc P. Armstrong

Included in

Geography Commons