Kelly Kostopoulou

CS PhD Student at Columbia University


Office 7EL4, 530 W 120th St, Schapiro Center, New York, (+1) 6462869074, kelkost(at)

I am a PhD candidate at the Computer Science department of Columbia University, working with Asaf Cidon and Roxana Geambasu.

My research spans broad areas of computer systems including distributed systems, privacy and systems for machine learning with a focus on accelerating training for large-scale deep neural networks. Lately, my work focuses on building functional system prototypes to enhcance the practicality of differentially-private databases.

I studied Computer Science at the University of Athens with a specialization in software systems, big data and machine learning.


Jan 2024 I won the 2024 Avanessians doctoral fellowship!
Dec 2023 Turbo demo released!
Aug 2023 Turbo accepted to SOSP’23!
Sep 2022 I won the Onassis and Bodossakis Scholarships.