Online aggregation and visualization of census data: Population mapping with SVG, XML, and free software

author: Yi-Hong Chang and Tyng-Ruey Chuang
publication date: July 2002
cite this with: Yi-Hong Chang and Tyng-Ruey Chuang. Online aggregation and visualization of census data: Population mapping with SVG, XML, and free software. In SVG Open / Carto.net Developers Conference. Zurich, Switzerland. July 2002.
link this with: http://tsm.iis.sinica.edu.tw/papers/svgopen02/
copyright: all rights reserved
category: XML and Web Technologies
tag: Data Visualization, Online Aggregation, Population Statistics and Mapping, SVG, Web, XML
full paper: html

Abstract

Standards like XML and SVG allow data to be exchanged between systems while maintaining its semantic integrity. Free software tools (Apache web server, Mozilla web browser, etc.) provide the means to build and maintain systems for data exchange. We report our experience in integrating free software tools for online aggregation and visualization of large census datasets. The system, Taiwan Social Map, is a Web-based system with XML, and SVG in particular, as the basis for data representation and visualization. Our experience in building the system has been very encouraging. We report in this paper the approaches we took, the lessons we learned, as well as the challenges we may continue to face in building and extending the system. Special efforts have been made to generate SVG data graphics that are clear, concise, interactive, and portable.

 
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