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Lower Bounds and Optimal Algorithms for Personalized Federated Learning

NeurIPS 2020 · Federated learning and privacy › Communication-efficient FL · approach: Federated optimization algorithms · 89 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Use AL2SGD+ instead of L2SGD+Personalized FL with finite-sum local objectives · LIBSVM logistic regression; communication roundscommunication rounds to convergenceHelped
Use IAPGD+Katyusha instead of L2SGD+Personalized FL with finite-sum local objectives · LIBSVM logistic regression; communication roundscommunication rounds to convergenceHelped
Use AL2SGD+ instead of IAPGD+KatyushaPersonalized FL with finite-sum local objectives · LIBSVM logistic regression; local computationlocal computationHelped
Use IAPGD+Katyusha instead of L2SGD+Personalized FL with finite-sum local objectives · LIBSVM logistic regression; local computationlocal computationHurt
Split client data heterogeneously rather than homogeneouslyPersonalized FL algorithms in the LIBSVM experiment · LIBSVM logistic regression; convergenceconvergenceNo clear effect
Use APGD1 when λ ≤ L=1 rather than APGD2Accelerated proximal-gradient methods · Synthetic quadratic objective; communication roundscommunication roundsHelped
Use APGD2 when λ > L=1 rather than APGD1Accelerated proximal-gradient methods · Synthetic quadratic objective; communication roundscommunication roundsHelped

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