Mert Gürbüzbalaban

Publications · Journal article · Trans. Mach. Learn. Res. 2026

RESIST: resilient decentralized learning using consensus gradient descent


Cheng Fang, Rishabh Dixit, Waheed U. Bajwa, Mert Gürbüzbalaban

Transactions on Machine Learning Research, 2026. Featured certification.

In brief

Decentralized learning is vulnerable to man-in-the-middle attacks that alter the messages agents exchange. RESIST combines multi-step consensus gradient descent with robust-statistics screening of neighbors’ messages and converges exactly to the empirical risk minimizer — linearly for strongly convex and Polyak–Łojasiewicz problems, sublinearly for smooth non-convex ones — as long as the fraction of compromised links stays below the screening rule’s breakdown point.

Cite
@article{fang2025resist,
  title   = {RESIST: resilient decentralized learning using consensus gradient descent},
  author  = {Cheng Fang and Rishabh Dixit and Waheed U. Bajwa and Mert Gürbüzbalaban},
  year    = {2026},
  journal = {Transactions on Machine Learning Research},
  note    = {arXiv:2502.07977},
}

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