Dr. Ujwal Gadiraju, Assistant Professor at the Web Information Systems group of the Faculty of Engineering, Mathematics and Computer Science (EEMCS/EWI), Delft University of Technology. He is a Director of the Delft AI “Design@Scale” Lab, and a member of the program management team of the TU Delft AI Labs. In addition, Ujwal co-leads the Kappa research line on Crowd Computing and Human-Centered AI at the WIS group. He is a Distinguished Speaker of the ACM, and a Research Fellow at the Weizenbaum Institute. Ujwal is currently serving as the Co-Editor for two Frontiers in AI journals: (1) Human-Centered AI and Crowd Computing and (2) User Modeling and Recommendations. He is also the Co-Editor-in-Chief of the Human Computation Journal and an Associate Editor of the Taylor and Francis Behavior and Information Technology journal.

Dr. Jie Yang, Assistant Professor in the Web Information Systems group at TU Delft. He co-leads the research line on Crowd Computing & Human-Centered AI and co-directs the Delft Design@Scale AI Lab. Before joining TU Delft, he was a machine learning scientist at Alexa Shopping, Amazon Research, based in Seattle, and a senior researcher at the eXascale Infolab, University of Fribourg – Switzerland. Jie’s research focuses on human-in-the-loop approaches for trustworthy machine learning, especially for natural language processing systems. He has published more than 70 papers in leading venues of information systems and AI such as The Web Conference/WWW, HCOMP, SIGIR, HT, CHI, CHIIR, AAAI, EMNLP, and TKDE. His work has received the Best Paper Award nomination at the Web Conference (2022), the Best Paper Award at the 28th ACM HT Conference (2017), the 1st Prize Blue Sky Idea, and the Best Demo Award at AAAI HCOMP (2021). Jie is active in serving research communities. He serves on the editorial board of the Journal of Human Computation, on the (senior) program committees of leading conferences in fields related to Information Systems and Artificial Intelligence, and regularly reviews journals and transactions such as IEEE TKDE, ACM TOIS, TWeb, TiiS, and TIST.