At the beginning of 2014, Telecom Italia launched the first edition of the Big Data Challenge, a contest designed to stimulate the creation and development of innovative technological ideas in the Big Data field. SpazioDati is the technology partner hosting the data distribution platform, using dandelion.eu.
Datasets were released only to be used by the participants: after the end of the contest, the demand for those datasets has raised. That's why the initiative “Open Big Data” was born.
We now have that data freely available for anyone to use: we publish it as Open Data because we want people to reuse it!