School of Computer Science
Carnegie Mellon University
I am an Assistant Professor in
the School of Computer
Science at Carnegie
Mellon University, with my primary appointment in the
Software and Societal
Systems Department (with
Computing program), and affiliated appointments with
the Machine Learning
Interaction Institute. I am also affiliated with
the CyLab and
I work on algorithms and machine learning. My recent work focuses on (1) how to make machine learning better aligned with societal values, especially privacy and fairness, and (2) how to make machine learning more reliable and robust when algorithms interact with social and economic dynamics. I study these questions using methods and models from learning theory, optimization, statistics, differential privacy, game theory, mechanism design, and human-computer interaction. For more details, please see my publications.
My research has been generously supported by the National Science Foundation (NSF), the Okawa Foundation, CMU’s Block Center for Technology and Society, an Amazon Research Award, a Google Faculty Research Award, J.P. Morgan Faculty Awards, Meta Research awards, a Mozilla Research Grant, Apple, and Cisco Research.
Previously, I received a Ph.D. in Computer Science in 2017 from the University of Pennsylvania, where I was extremely fortunate to have been co-advised by Michael Kearns and Aaron Roth. My doctoral dissertation titled "Data Privacy Beyond Differential Privacy" received Penn's Morris and Dorothy Rubinoff Award for best thesis. Before joining CMU, I was an Assistant Professor of Computer Science & Engineering at the University of Minnesota for two years. Before that, I spent a year as a post-doctoral researcher at Microsoft Research-New York City in the Machine Learning and Algorithmic Economics groups. Please see my CV for more details.
Four papers accepted at ICML 2023.
Two papers accepted at FAccT 2023.
Our CMU team ("puffle") led by Ken Liu won the 1st place at the U.S. Privacy-Enhancing Technologies (PETs) Prize Challenge, Pandemic Forecasting Track (USD $100,000). See coverage by the White House, UK Government, Summit for Democracy, DrivenData, NSF, and CMU news.
Our paper Confidence-ranked reconstruction of census microdata from published statistics is now published in PNAS.
One paper accepted at AIStats 2023 and one paper accepted at ICLR 2023.
Seven papers accepted at NeurIPS 2022.
Our paper Policy impacts of statistical uncertainty and privacy is now published in Science.
Giuseppe Vietri (co-advised by Maria Gini)
Daniel Ngo (co-advised by Maria Gini)
Logan Stapleton (co-advised by Haiyi Zhu)
Justin Whitehouse (co-advised by Aaditya Ramdas)
Keegan Harris (co-advised by Nina Balcan)
Gokul Swamy (co-advised by Drew Bagnell)
Luke Guerdan (co-advised by Ken Holstein)
Pratiksha Thaker (co-advised by Virginia Smith)
Ken Ziyu Liu
Diana Qing (UC Berkeley)
Jingwu Tang (Peking U.)
Hao-Fei Cheng (PhD student), now at Amazon
Xinyan Hu (visiting undergrad), now a PhD student at UC Berkeley
Leijie Wang (visiting undergrad), now a PhD student at Univ. of Washington
Conference Program Committee
NeurIPS 2022, 2021, 2020 (area chair)
ICML 2022, 2020 (area chair)
ICLR 2022, 2021, 2020 (area chair)
AISTATS 2021 (area chair)
COLT 2023 (SPC)
FAccT 2019, 2021, 2023 (area chair)
TheWebConf 2020, 2018
EC 2020, 2019, 2018
Workshop Program Committee
TPDP 2021, 2019
Intersectionality in Fair Machine Learning: Where Are We and Where Should We Go from Here? MOSAIC 2020: An Annual Conference on Intersectionality. Nov. 1, 2020.
Recent Developments in Research on Fairness. The Simons Institute for the Theory of Computing, Berkeley, CA. July 8-10, 2019.
I co-organize differentialprivacy.org.
During my undergraduate, I was involved in the Bard Prison Initiative as a math tutor at the Eastern New York Correctional Facility. Check out this amazing four-part documentary film series, College Behind Bars, about this initiative.
Of Moments and Matching: Trade-offs and Treatments in Imitation Learning
Simons Institute Workshop on Adversarial Approaches in Machine Learning
A Geometric View on Private Gradient-Based Optimization
Federated Learning One World Seminar (FLOW)
FLOW Video Google Video
Involving Stakeholders in Building Fair ML Systems
Foundations of Algorithmic Fairness Workshop
IDEAL Quarterly Theory Workshop: Algorithms and their Social Impact
Trustworthy ML Initiative (TrustML) Seminar
Leveraging Heuristics in Private Synthetic Data Generation
CMU Crypto/Applied crypto seminar
PPAI workshop 2021
Boston-area Data Privacy Seminar
PPAI Video CMU Cryto Video
Between Individual and Group
Three Decades of DIMACS: The Journey Continues
Tutorial: Differential Privacy Techniques Beyond Differential
FOCS 2019 workshop A TCS Quiver