This CCIS book constitutes selected papers accepted in the Research Track on Big Data and Data Science and the Research Track on Social Network Analysis, Social Media and Mining held as part of the International Conference on Computational Science and Computational Intelligence, CSCI 2024, which took place in Las Vegas, NV, USA, during December 11-13, 2024. The Research Track on Big Data and Data Science, CSCI-RTBD, received 72 submissions of which 18 papers were accepted. For the Research Track on Social Network Analysis, Social Media and Mining, CSCI-RTNA, 7 papers were accepted from 41 submissions. They were organized in topical sections on Big Data and Data Science - applications and algorithms; Social Network Analysis, Social Media, and Mining; and Ongoing Research Projects and Posters. .