The Program Committees of the 2015 IEEE International Conference on Big Data (IEEE BigData 2015) invite proposals for Tutorials with the aim of offering a high-quality tutorial program providing attendees the opportunity to learn from and to interact with internationally recognized experts in the most popular areas Big Data. IEEE BigData 2015 tutorials are intended to cover a wide range of topics of interest to the Big Data community. The tutorials chairs encourages proposals for two hours, or four hours tutorials with broad applicability and of interest to a large fraction of the IEEE Big Data 2015 attendees.