Cartographic Treemaps for Visualization of Public Healthcare Data
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Date
2017
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association
Abstract
The National healthcare Service (NHS) in the UK collects a massive amount of high-dimensional, region-centric data concerning individual healthcare units throughout Great Britain. It is challenging to visually couple the large number of multivariate attributes about each region unit together with the geo-spatial location of the clinical practices for visual exploration, analysis, and comparison. We present a novel multivariate visualization we call a cartographic treemap that attempts to combine the space-filling advantages of treemaps for the display of hierarchical, multivariate data together with the relative geo-spatial location of NHS practices in the form of a modified cartogram. It offers both space filling and geospatial error metrics that provide the user with interactive control over the space-filling versus geographic error trade-off. The result is a visualization that offers users a more space efficient overview of the complex, multivariate healthcare data coupled with the relative geo-spatial location of each practice to enable and facilitate exploration, analysis, and comparison. We evaluate the two metrics and demonstrate the use of our approach on real, large high-dimensional NHS data and derive a number of multivariate observations based on healthcare in the UK as a result. We report the reaction of our software from two domain experts in health science.
Description
@inproceedings{10.2312:cgvc.20171276,
booktitle = {Computer Graphics and Visual Computing (CGVC)},
editor = {Tao Ruan Wan and Franck Vidal},
title = {{Cartographic Treemaps for Visualization of Public Healthcare Data}},
author = {Tong, Chao and Roberts, Richard and Laramee, Robert S. and Berridge, Damon and Thayer, Daniel},
year = {2017},
publisher = {The Eurographics Association},
ISBN = {978-3-03868-050-5},
DOI = {10.2312/cgvc.20171276}
}