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Georgios Damaskinos

2 accepted papers

2021

Differentially Private Stochastic Coordinate Descent

AAAI 2021technical

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…

2018

Asynchronous Byzantine Machine Learning (the case of SGD)

ICML 2018oral

Asynchronous distributed machine learning solutions have proven very effective so far, but always assuming perfectly functioning workers. In practice, some of the workers can however exhibit Byzantine behavior, caused by hardware failures, software bugs, corrupt data, or even malicious attacks. We i…