As part of my daily tasks, I am tracking major forums for emerging technologies such as Artificial Intelligence, Machine/Deep Learning, Blockchain, Smart Cities, Wearables, Internet-of-Things (IoT), Robotics, Cybersecurity and others.
Here's my compilation of related events, exhibitions and conferences globally in these categories for 2019, ranked by visitorship. These are the major global events for emerging technologies. Combined, the top 10 events receive more than 1 million visitors.
With the exception of Hannover Messe and Mobile World Congress as European events. the remaining eight tech shows are all located in Asia. Note: The visitorship data is obtained from 2018/2017 data sources (refer to references below).