From June 30th to July 6th 2018 the two in Germany based Big Data Competence Centers ScaDS Dresden/Leipzig and BBDC are organizing the fourth international summer school on Big Data and Machine learnuing in its series of summer schools (2016, 2017). The event aims at graduate students, Ph.D. students, researchers and practitioners  starting or being active in the fields of Big Data and machine Learning. Within the program, we offer inspiring insights into the area by selected keynotes from international experts combined with industrial talks.  Prior to the summer school, there will be a "streamline" hackathon for hands-on development of an application for real-time analytics of streaming data.  Furthermore, there will be plenty of opportunities to exchange ideas and to discuss the topics with other participants and speakers. The summer school also hosts several social activities such as a city walk and a dinner in a traditional restaurant.