Lydia T. Liu is a postdoctoral researcher at Cornell University Computer Science, working with Jon Kleinberg, Karen Levy, and Solon Barocas in the Artificial Intelligence, Policy, and Practice (AIPP) initiative. Her research examines the theoretical foundations of machine learning and algorithmic decision-making, with a focus on societal impact and human welfare. She obtained her PhD in Electrical Engineering and Computer Sciences from UC Berkeley, advised by Moritz Hardt and Michael Jordan, and has received a Best Paper Award at the International Conference on Machine Learning, a Microsoft Ada Lovelace Fellowship, an Open Philanthropy AI Fellowship.