The Styrian Diversity Visualisation Project

Conference Paper by Keith Andrews, Thomas Traunmüller, Thomas Wolkinger, Robert Gutounig, Julian Ausserhofer: Building an Open Data Visualisation Web App using a Data Server: The Styrian Diversity Visualisation Project.

Presented @ 15th International Conference on Knwoledge Technologies and Data-driven Business (i-KNOW 2015), Graz,  October 2015. Best Demo Award!

Abstract

Statistical open data is usually provided only in the form of spread-sheets or CSV files, which can sometimes be very large. The writer of an open data app is confronted with two choices: restrict themselves to managable bite-sized chunks of data, which can be consumed (read, parsed, and held in memory) in one go, or install and maintain their own data server which the app can query on demand. The Styrian Diversity Visualisation project was conceived to visualise the diversity of inhabitants of the Austrian Province of Styria (Land Steiermark) using open data served from a data server (triple store). The corresponding web app queries the data server at run rime with a SPARQL query to obtain exactly the data required at that particular time, greatly simplifying its internal logic. There is no need to parse and store entire data sets in memory. The data server is an instance of a Virtuoso Open Source server. The web app (client) is written in HTML5 and uses the leafletjs JavaScript library to provide mobile-friendly interactive maps. The user interface was designed as a set of three stories, each guiding users through a scenario with accompanying interactive visualisa-tions based on corresponding open data sets.

Full paper@Researchgate

 

 

 

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