Mark Edwin Lewis

Career After his PhD, Lewis spent a year at the University of British Columbia as a postdoctoral fellow. In 1999, he joined the faculty at the University of Michigan in Ann Arbor as assistant professor of Industrial and Operations Engineering. Lewis became associate professor at the Operations Research and Information Engineering department at Cornell University in 2005 and was promoted to Full Professor in 2011.

Lewis founded the Institute for Operations Research and the Management Sciences (INFORMS) Minority Issues Forum in 2001 and served as its first president. In 2009, Lewis co-chaired the 15th INFORMS Applied Probability Conference at Cornell University in Ithaca, NY. Lewis acted as chair of the Applied Probability Society from 2012 to 2014. In 2024, Lewis was elected to be the 2025 INFORMS President-elect and subsequently the 2026 President of INFORMS.

Lewis was Associate Dean for Diversity and Faculty Development for Cornell University's College of Engineering from 2015 to 2020. In this role, he acted as task force chair of the Faculty Diversity Committee, which was convened in 2017. Lewis served as principal investigator on the Cornell University Engineering Success Program to increase the participation of underrepresented minority and first-generation college students.

Research

Lewis researches the optimal control of non-stationary systems, developing policies for admission and pricing at non-stationary queueing systems with finite capacity and multiple customer classes, with applications in production, communication, and the airline industry.

He studied the dynamic control and optimal resource allocation of service systems, such as call centers, through "upgrades, reneging, and retrials" (for example after market segmentation).

Lewis also develops methods for optimization of Markov decision processes to study problems such as inventory control and revenue management.

Awards and honors 1998: NSF NATO Postdoctoral Fellowship 1999: Facilitating Academic Careers in Engineering and Science (FACES) award, Georgia Tech 1999: Honorable Mention for George B. Dantzig Dissertation Award, Institute for Operations Research and the Management Sciences 2002: NSF CAREER 2003: Mentor of the Year, Sloan Foundation 2004: Harold R. Johnson Diversity Service Award, University of Michigan 2005: NSF Presidential Early Career Award for Scientists and Engineers 2010: J. J. Ebers Award "for contributions to widely used silicon integrated circuit process modeling" 2014: MAA-NAM Blackwell Lecture 2019: Mathematically Gifted & Black 2019 Black History Month Honoree 2021: INFORMS Minority Issues Forum Fellow 2024: INFORMS Senior Member