Po-Shen Loh is a math enthusiast and evangelist. He is the national coach of the USA International Mathematical Olympiad team, a math professor at Carnegie Mellon University, and the founder of expii.com, an education technology startup providing a free personalized learning platform on every smartphone.
As an academic, Po-Shen has numerous distinctions, from an International Mathematical Olympiad silver medal to the National Science Foundation’s CAREER award. His research considers a variety of questions that lie at the intersection of combinatorics (the study of discrete systems), probability theory, and computer science. As an educator, he led Carnegie Mellon University’s Putnam team to multiple 2nd-place finishes among all North American universities. His approach to coaching the national Math Olympiad team received significant press coverage after the USA’s historic victory in 2015. Through Expii, Po-Shen extends his activity to the global mainstream, combining algorithms and crowdsourcing to deliver a GPS-style navigational interface for the world of knowledge.
Po-Shen received his undergraduate degree in mathematics from Caltech in 2004, graduating first in his class. He received a master’s degree in mathematics from the University of Cambridge in 2005, where he was supported by a Winston Churchill Foundation Scholarship. He continued his studies at Princeton, where he completed his Ph.D. in mathematics at the end of 2009, and has been on the faculty at Carnegie Mellon University ever since.