Ημερομηνία : 01/04/2021
Ομιλητής: Δρ. Συμεών Παπαδόπουλος, Senior Researcher with the Information Technologies Institute (ITI), Centre for Research and Technology Hellas (CERTH).
Deepfakes have emerged for some time now as one of the largest Internet threats, and even though their primary use so far has been the creation of pornographic content, the risk of them being abused for disinformation purposes is growing by the day. Deepfake creation approaches and tools are continuously improving in terms of result quality and ease of use by non-experts, and accordingly the amount of deepfake content on the Internet is quickly growing. For that reason, approaches for deepfake detection are a valuable tool for media companies, social media platforms and ultimately citizens to help them tell authentic from deepfake generated content. In this presentation, I will be presenting a short overview of the developments in the field of deepfake detection, and present our lessons learned from working on the problem in the context of the Deepfake Detection Challenge and from developing a service for the H2020 WeVerify project.
Dr. Symeon Papadopoulos is a Senior Researcher with the Information Technologies Institute (ITI), Centre for Research and Technology Hellas (CERTH), Thessaloniki, Greece. He holds an electrical and computer engineering diploma from the Aristotle University of Thessaloniki, a Professional Doctorate in Engineering from the Technical University of Eindhoven, a Master’s in Business Administration from the Blekinge Institute of Technology and a PhD in Computer Science from the Aristotle University of Thessaloniki. His research interests lie at the intersection of multimedia understanding, social network analysis, information retrieval, big data management and artificial intelligence. Dr. Papadopoulos has co-authored more than 30 papers in refereed journals, 10 book chapters and 100 papers in international conferences, 3 patents, and has edited two books. He has participated in a number of relevant EC FP7 and H2020 projects in the areas of media convergence, social media and artificial intelligence, including WeVerify, HELIOS, FuturePulse, InVID, REVEAL and SocialSensor. He currently coordinates the H2020 MediaVerse project and is a member of the coordinating team of the AI4Media Network of Excellence. During the last years, he has been leading the Media Verification team (MeVer, https://mever.iti.gr), focusing on the development of tools for the detection and analysis of multimedia- and social media-based disinformation.