The CommuniData team took active part in the STUWERTRUBEL festival on 15th September (more details). Anna Aigner and Laura Mayr, two interns in GB* 2/20, prepared an open data quest with locations to visit across Stuwerviertel, challenges to solve and prizes to take home.

70 participants completed a survey on the use of open data and social networks. The results of the survey show that the majority of participants regularly access Facebook, Instagram and Twitter from their mobile devices, primarily cell phones. Most participants are aware of the term „open data“ but do not know, where they can actually find these data.
This is a very good reason for them to meet our Open Data Expert on Facebook, the chatbot who helps to search through the Austrian open datasets using a compact mobile phone interface.

Mobility apps by Wiener Linien, WienMobil and Quando based on the data also available as Open Data, and the mobile feedback app Sag’s Wien by the City of Vienna are the three most often used apps among the Vienna-specific ones.

Check out CommuniData project on Twitter for more impressions and photos from the event.

Austrian Open Data Day: Students Co-Create Open Data Ideas!

World Open Data Day is a global event that has the goal to promote the use of open data world-wide and develop new ideas on improving life quality and empowering local communities through the use of open data. In practice, this is the day, when many people get together to exchange their experience, experiment, have fun and develop practical applications and visualisations with open data.

Vienna University of Economics and Business in collaboration with the Linked Data Lab, TU Vienna, hosted a workshop-hackathon targeted at students, who were encouraged to develop and share their open data ideas. It was one in the Open Data Day event series organised in Vienna on March 3rd.

The focus of the workshop was on the Open Data in Austria represented by the Austria’s Open Data portals: and Students together with the university researchers shared their ideas, proposed innovative solutions and voted for the most exciting and promising projects to work on: fake news verification with open data, playlist suggestion to work on the open datasets, putting the local data on the map, etc.

In less than 5 hours the participants exercised in creativity, their programming and design skills and managed to already present the first prototypes of their ideas:

1. Open Data Buildings Map Visualisation

One of the student teams focused on a use case to visualise and search for „local data around you“ on a map. They implemented an open data visualisation in the Jupyter Notebook environment. The work was subdivided into aggregation and conversion of the relevant data sources, for instance, historical buildings and their addresses from the Vienna history wiki (Thanks to Bernhard Krabina from KDZ for the help!) another part of the team looked into the visualisation libraries for Python. The final Python script loads the building coordinates from a CSV file, fixes the formatting issues and marks the locations on the OpenStreetMap using folium library.

Here is how the Open Data Buildings Map of Vienna looks like:

The interactive version of this map visualisation along with the source code for its implementation is available online.

2. News Verification Browser Extension

Another favourite open-data-in-use idea was the fake news verification application, the topic which is in high demand everywhere in the world right now. The students designed a mock-up sketch of a Chrome browser extension that will provide the means to crowd-source online news annotations and also contrast the figures provided in the news articles with the analogous figures available from the open data sources. It is indeed a highly ambitious and relevant project idea that contains several research questions on how to enable the correct alignment between the news text and tabular data.

3. Open Data Fact Quiz Generator

The third team further developed the idea of adding the gamification element to the process of exploring and enriching existing open datasets. They took up a challenge of implementing the first prototype of the game with a purpose that would generate quiz questions from the open data tables to enable and bootstrap their annotation. The users would play the game by interacting with the datasets to test and expand their knowledge, and, at the same time, contribute to the community by verifying and improving the quality of open data.

Big thanks to the organisers and participants of the workshop for the great event!

More info about the Open Data Day ’17 in Vienna:

Bird’s-Eye View upon the Austrian Open Data Landscape with wordcloud

To get a grasp of the content available from the Austrian Open Data portals ( and we generated two word clouds separately for each of the portals. We retrieved the metadata through the WU’s Open Data Portal Watch API and processed all the dataset titles using wordcloud.

Here is the visualization of the total 2,297 (as of 31 December 2016) dataset titles at :

The 373 titles from the independent Austrian Open Data portal look as follows.

Check out our open source code on GitHub and stay tuned for further updates!

About the project: The CommuniData project aims to bring Open Data closer to local communities, i.e. enhance usability of Open Data and its accessibility for non-expert users. CommuniData is a cooperation between the WU Vienna, the companies cbased and webLyzard, and the Urban Renewal Office of the Vienna’s Second District. It is supported by the Austrian Research Promotion Agency FFG.