XI "BILL" CHEN, Ph.D., MA, is a senior software engineer developing simulation apps with Python and optimizing data collection pipelines at Meta. He defines roadmaps and machine learning and deep learning applications, synthetic data generation, and performs user data integrity and anomaly analysis while collaborating with multiple teams to increase ML development velocity. Formerly he was a certified instructor at the Nvidia Deep Learning Institute, where he trained developers and data scientists, organized workshops on various topics, and facilitated research on using AI and GPU computing to solve real-world problems. He has also worked as a lead computational biologist, ML engineer and data scientist. He has a doctorate in Philosophy in Bioinformatics and a master's degree in Statistics from the University of Kentucky.