This three day conference will provide a sort of a real workshop (not listen-shop) to scientists and scholars to share ideas, initiative future collaborations and brainstorm challenges as well as industries to catch emerging solutions from the science to their real data science problems. The format of the conference includes a tutorials day on March 6 th , and plenary talks, special invited talks, and contributed poster sessions on March 7 and 8th. CiDaS 2019 is focused on main topics such as big data analysis, machine learning, semantic data science and applied data science. All accepted full papers will be published by Springer in Lecture Notes on Data Engineering and Communications Technologies, and all accepted short papers in CiDaS 2019 will be published in the Springer’s SN Applied Sciences.