Open Data - How can you use Open Data?
Open Data is gaining momentum as a means to enable transparency and participation for public administrations, allowing re-use, added value by outsourcing data to the community. Yet, despite the enthusiasm caused by the availability of a steadily increasing amount of openly available, structured data, first critical voices appear addressing the quality issues, as well as searchability of Open Data.
Where to find relevant Open Data if it is out there? How to use incomplete and hetereogeneous Open Data?
What Data do people actually need vs. what data is being published by public administrations or other organisations?
In this talk we will attempt to give some - due to the still "under development" stage of many Open Data efforts - partially speculative answers to these questions. We present our efforts to monitor and assess the quality of 82 active Open Data portals, powered by different organisations across 35 different countries. We will discuss - on the one hand - quality metrics and report on findings by analysing the data and the evolution of these portals since September 2014. On the other hand, we will report on a practical use case on using Open Data, including challenges and possible solutions to deal with incomplete, heterogeneous and inconsistent Open Data collected from the Web.