The University of Macau (UM) Faculty of Science and Technology, the UM State Key Lab of Internet of Things for Smart City, and the Macao Convention and Exhibition Association, have successfully assisted Macao in obtaining the right to host the three most influential international conferences in the areas of big data and artificial intelligence, namely the Institute of Electrical and Electronics Engineers International Conference on Data Engineering 2019 (ICDE 2019), the Pacific-Asia Conference on Knowledge Discovery and Data Mining 2019 (PAKDD 2019), and the International Joint Conference on Artificial Intelligence 2019 (IJCAI 2019).