NZZ Swiss maps 30 Aug 2013
As a new member of the team at Interactive Things I worked on a series of twenty visualizations called “Swiss maps” for Neue Züricher Zeitung. Here’s a showcase of their interactive versions. The series won the first prize in the category of interactive graphics in the German Press Agency DPA Infographic Awards 2013.
Remittance flows 01 Apr 2013
Visualizing flows of money sent by migrants to their home countries. Together with David Bauer and René Stalder. The visualization was published by the newspapers TagesWoche.ch and derStandard.at. It was also featured on Visualizing.org as one of the highlights of May 2013. View the English version or fork on github.
AidData 01 Sep 2012
Visualizing flows of financial aid donated to countries by international organizations and by other countries. In collaboration with AidData.org.
Swiss train flows 30 Mar 2012
Animated interactive visualization of train flows in Switzerland showing the numbers and the speeds of the trains during different time of the day. Developed in a team of fellow hackers during the make.opendata camp in Zurich.
View in action here.
Election fraud in Russia 13 Mar 2012
Visualizing traces of fraud in Russian presidential election in 2012 and estimating the amount of fraud.
User study on visualizing temporal changes in flow maps 30 Nov 2011
In this research study we analyzed ﬁndings made by the participants with ﬂow maps using animation and small-multiples as two alternative ways of representing temporal changes. The goal was to ﬁnd out whether there are qualitative differences between the types of ﬁndings users make with these two representations. This required a deep analysis of the collected ﬁndings and the interaction logs. To enable this analysis I developed web based tools for collaborative classification of the findings, resolving disagreements in the classification and a visualization of the interaction logs.
Check our publication for more details.
Flowstrates 07 Oct 2011
An interactive technique for analyzing temporal changes in origin-destination data, that is, flows of entities between geographic locations.
Edge bundling 01 Nov 2010
Edge bundling can help making a cluttered graph visualization more readable by rerouting the edges so that they form bundles emphasizing the high-level graph structure. JFlowMap has an impementation of Danny Holten’s force-directed bundling algorithm.
JFlowMap 01 Oct 2010
A visualization tool in which we experiment with various visualization techniques for spatial interactions, i.e. interactions between pairs of geographic locations. These can be migrations, movement of goods and people, network traffic, or any kind of entities “flowing” between locations. Spatial interactions are often represented as origin-destination data, meaning that only the origins, the destinations and the magnitudes of the flows are known, but not the exact flow routes.
JFlowMap is freely available at code.google.com/p/jflowmap/.
BirdEye 09 May 2009
BirdEye is a Flex visualization library which follows the approach to building visualizations described by Leeland Wilkinson in his book “Grammar of Graphics”. BirdEye can be seen as a language for creating visualization which not only provides a set of predefined visualization types, but also allows the users to create new kinds of visualizations easily.
My contribution to BirdEye so far has been to make the animated graph layouts from the previous library version work within the new framework based on the Grammar of Graphics.
CGVis 01 Jan 2009
CGVis is an open source generic data visualization tool with an innovative zoomable user interface and animations which help the user find particular features in his data.
The tool is available for free download from here.
FHLiteEditor 25 Mar 2007
Screen or presentation manager which allows to create layouts from videos, images, flash movies and other media for a screen and then to schedule them.
My contribution to this project were the visual layout and schedule editors, that is, the most interesting parts of the UI :)
ProClassify 26 Feb 2007
An implementation of the feature selection and classification method which was developed at the Institute for Genomics and Bioinformatics (TU Graz). The method was meant originally for cancer detection on proteomics mass-spectroscopy data, but appears to be useful for completely different datasets too.
ProClassify is free for non-commercial use and can be downloaded from this website.
ProClassifyWeb 25 Feb 2007
A Web version of ProClassify developed to facilitate sharing of datasets and computational capacities by the users. The features of the web version are mostly identical to the standalone version except the data visualization which is missing in the web version.