Matthew Sag Professor of Law, Artificial Intelligence, Machine Learning and Data Science at Emory University Law School About Matthew Matthew Sag is a Professor of Law, Artificial Intelligence, Machine Learning and Data Science at Emory University Law School. Professor Sag is an expert in copyright law and intellectual property. He is a leading U.S. authority on the fair use doctrine in copyright law and its implications for researchers in the fields of text data mining, machine learning and AI. Professor Sag is currently working on several theoretical contributions to copyright law in relation to AI and machine learning and a series of empirical papers using text-mining and machine learning tools to study judicial behavior. His work has been published in leading journals such as Nature and Science, and the law reviews of the University of California Berkeley, Georgetown, Northwestern, Notre Dame, Vanderbilt, Iowa and William & Mary, among others. His research has been widely cited in academic works, court submissions, judicial opinions and government reports.