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  4. Differentially Private Stochastic Coordinate Descent
 
conference paper

Differentially Private Stochastic Coordinate Descent

Damaskinos, Georgios  
•
Mendler-Dünner, Celestine
•
Guerraoui, Rachid  
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2021
Thirty-Fifth Aaai Conference On Artificial Intelligence, Thirty-Third Conference On Innovative Applications Of Artificial Intelligence And The Eleventh Symposium On Educational Advances In Artificial Intelligence
35th AAAI Conference on Artificial Intelligence / 33rd Conference on Innovative Applications of Artificial Intelligence / 11th Symposium on Educational Advances in Artificial Intelligence

In this paper we tackle the challenge of making the stochastic coordinate descent algorithm differentially private. Compared to the classical gradient descent algorithm where updates operate on a single model vector and controlled noise addition to this vector suffices to hide critical information about individuals, stochastic coordinate descent crucially relies on keeping auxiliary information in memory during training. This auxiliary information provides an additional privacy leak and poses the major challenge addressed in this work. Driven by the insight that under independent noise addition, the consistency of the auxiliary information holds in expectation, we present DP-SCD, the first differentially private stochastic coordinate descent algorithm. We analyze our new method theoretically and argue that decoupling and parallelizing coordinate updates is essential for its utility. On the empirical side we demonstrate competitive performance against the popular stochastic gradient descent alternative (DP-SGD) while requiring significantly less tuning.

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Type
conference paper
DOI
10.1609/aaai.v35i8.16882
Web of Science ID

WOS:000680423507033

Author(s)
Damaskinos, Georgios  
Mendler-Dünner, Celestine
Guerraoui, Rachid  
Papandreou, Nikolaos
Parnell, Thomas
Date Issued

2021

Publisher

AIAA

Publisher place

Palo Alto

Published in
Thirty-Fifth Aaai Conference On Artificial Intelligence, Thirty-Third Conference On Innovative Applications Of Artificial Intelligence And The Eleventh Symposium On Educational Advances In Artificial Intelligence
ISBN of the book

978-1-577358-66-4

Series title/Series vol.

AAAI Conference on Artificial Intelligence; 35

Start page

7176

End page

7184

Subjects

Ethics-Bias

•

Fairness

•

Transparency & Privacy

•

Optimization

URL
https://ojs.aaai.org/index.php/AAAI/issue/view/385
Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
DCL  
Event nameEvent placeEvent date
35th AAAI Conference on Artificial Intelligence / 33rd Conference on Innovative Applications of Artificial Intelligence / 11th Symposium on Educational Advances in Artificial Intelligence

Virtual Conference

February 2–9, 2021

Available on Infoscience
July 16, 2021
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/179931
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