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Jonas Traub and Philipp Grulich present I² at Flink Forward 2017

We are looking Forward to this year's Flink Forward Conference in Berlin which will take place September 11-13, 2017 at Kulturbrauerei. The conference offers a three days full program packed with talks and trainings. Tickets are available at

Jonas Traub and Philipp Grulich will represent DIMA and DFKI with a their talk titled "I²: Interactive Real-Time Visualization for Streaming Data with Apache Flink and Apache Zeppelin".


We present I², an interactive development environment for real-time analysis pipelines, which is based on Apache Flink and Apache Zeppelin. The sheer amount of available streaming data frequently makes it impossible to visualize all data points at the same time. I² coordinates running Flink jobs and corresponding visualizations such that only the currently depicted data points are processed in Flink and transferred towards the front end. We show how Flink jobs can adapt to changed visualization properties at runtime to allow interactive data exploration on high bandwidth data streams. Moreover, we present a data reduction technique which minimizes data transfer while providing loss free time-series plots. We show I² in a live demonstration in which we replay recorded sensor data from a football match (ca. 12k event/s). I² was first presented at EDBT'17 where it was awarded as best demonstration. The demonstration is available as open source at [].

More Information on I²: