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Isidoros Tziotis

2 accepted papers

2022

Adaptive Node Participation for Straggler-Resilient Federated Learning

ICASSP 2022accepted

Federated learning is prone to multiple system challenges including system heterogeneity where clients have different computation and communication capabilities. Such heterogeneity in clients’ computation speeds has a negative effect on the scalability of federated learning algorithms and causes sig…

Cited by 0SourceScholar
2020

Second Order Optimality in Decentralized Non-Convex Optimization via Perturbed Gradient Tracking

NeurIPS 2020poster

In this paper we study the problem of escaping from saddle points and achieving second-order optimality in a decentralized setting where a group of agents collaborate to minimize their aggregate objective function. We provide a non-asymptotic (finite-time) analysis and show that by following the ide…

Cited by 8SourcePDFScholar