His main research interests lie in machine learning and audio processing. His methods for high dimensional data analysis have been applied to many problems in science and engineering. Saul received his Ph.D. in Physics from M.I.T. in 1994. In 1999, after working three years in the speech center at AT&T Labs, he was recognized by the MIT-based journal Technology Review as one of 100 top innovators under the age of thirty-five. A recent bibliographic analysis by Essential Science Indicators indicated that his work had entered the top 1% of total citations earned in the field of Computer Science. He is a founding member of the Editorial Board for the Journal of Machine Learning Research.