This volume constitutes the refereed proceedings of the Third International Conference on Smart Applications and Data Analysis, SADASC 2020, held in Marrakesh, Morocco, in March 2020. The 24 full papers and 3 short papers presented were thorughly reviewed and selected from 44 submissions. The papers are organized according to the following topics: ontologies and meta modeling; cyber physical systems and block-chains; recommender systems; machine learning I; combinatorial optimization; machine learning II; simulations and deep learning. weiterlesen