While scrolling through social media, have you ever stopped to think if anyone is filtering the content you are seeing? That is the job of a content moderator. Content moderators spend countless hours sifting through online material to protect us from the worst of what the internet has to offer, but they are often underpaid and poorly represented. Content moderators are in need of our protection too. Dr Gianluca Demartini is a Senior Lecturer in Data Science at The University of Queensland in the School of Information Technology and Electrical Engineering. He has published more than 100 peer-reviewed scientific publications, including papers at major venues for research on the Web, Human-Computer Interaction, Information Retrieval, Semantic Web, and Human Computation. Before joining The University of Queensland, he was a lecturer at The University of Sheffield in the UK, and a post-doctoral researcher at the eXascale Infolab at The University of Fribourg in Switzerland. Gianluca was also a visiting researcher at UC Berkeley, a junior researcher at the L3S Research Centre in Germany, and an intern at Yahoo! Research in Spain. In 2011, he obtained a PhD in Computer Science at The Leibniz University of Hanover in Germany focusing on Semantic Search. In his talk, Gianluca will discuss a new type of job - data annotators - that has been emerging from the growing popularity of Artificial Intelligence. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at www.ted.com/tedx