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Ashwinkumar Venkatanaga Machanavajjhala

Adjunct Associate Professor of Computer Science
Computer Science

Current Appointments & Affiliations


Adjunct Associate Professor of Computer Science · 2024 - Present Computer Science, Trinity College of Arts & Sciences

In the News


Published May 18, 2017
New Tools Safeguard Census Data About Where You Live and Work
Published July 6, 2016
Duke researchers develop new video privacy software
Published June 28, 2016
Video Privacy Tool Lets You Select What Others See

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Recent Publications


Differentially private explanations for aggregate query answers

Journal Article VLDB Journal · March 1, 2025 Differential privacy (DP) is the state-of-the-art and rigorous notion of privacy for answering aggregate database queries while preserving the privacy of sensitive information in the data. In today’s era of data analysis, however, it poses new challenges f ... Full text Cite

R2T: Instance-Optimal Truncation for Differentially Private Query Evaluation with Foreign Ke

Journal Article Communications of the ACM · March 1, 2025 Answering SPJA queries under differential privacy (DP), including graph-pattern counting under node-DP as an important special case, has received considerable attention in recent years. The dual challenge of foreign-key constraints and self-joins is partic ... Full text Cite

Pufferfish Privacy

Chapter · January 1, 2025 Full text Cite
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Recent Grants


RAISE: C-Accel Pilot - Track A1: Credible Open Knowledge Network

ResearchCo-Principal Investigator · Awarded by University of Texas at Arlington · 2019 - 2022

RAPID: Poirot: From Contact Tracing to Private Exposure Detection

ResearchCo-Principal Investigator · Awarded by National Science Foundation · 2020 - 2022

System P: A Private Data Analytics Engine Optimized for Utility

ResearchPrincipal Investigator · Awarded by University of Massachusetts - Amherst · 2015 - 2021

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Education, Training & Certifications


Cornell University · 2008 Ph.D.