arXiv Machine Learning

A Lifecycle Cost Analysis of Smart-Contract-Coordinated Federated Learning Marketplaces

The paper experimentally evaluates the operational cost of a DAO‑governed blockchain‑enabled federated learning marketplace. It decomposes gas consumption across the entire contract lifecycle, isolates the impact of on‑chain coordination and IPFS storage, and derives an analytical model for cost amortization. Results show a single training task consumes about 3.8 million gas units per trainer, with the average cost per training round reaching its amortization knee after roughly 20 communication rounds, while model performance remains comparable to conventional FL deployments.

arXiv Machine Learning
Sep 15

Pathwise Individual Rationality in Federated Learning: A Mechanism-Architecture Co-Design

The paper investigates the trade‑off between the costs of participating in federated learning (privacy, communication, compute) and the potential gains in model performance, framing this as a game‑theoretic problem of individual rationality versus autarky. It shows that clients can remain below their local‑training baseline for many rounds and that simply capping per‑round contributions harms learning. The authors propose a new mechanism that provides short‑term participation guarantees and personalized model evaluation, demonstrating theoretically and empirically that clients can avoid short‑term losses without significantly harming overall performance, even under moderate heterogeneity.

By Amin Meghrazi, Srinivasan Parthasarathy, Andrew Perrault
arXiv Machine Learning
1d ago

Latent Information Sharing for Accelerating Federated Learning

The paper introduces a latent information sharing scheme for federated learning that mitigates client drift by sharing a small amount of hidden‑layer activations. The authors demonstrate both theoretically and empirically that this approach improves training efficiency while maintaining convergence guarantees and data privacy. Compared to existing methods such as FedProx, SCAFFOLD, FedPVR, FedProto, and SplitFed, the proposed method achieves higher model accuracy within a fixed round budget without adding significant communication overhead.

By Seungjun Lee, Ensieh Khazaei, Dimitrios Hatzinakos, Baturalp Buyukates, Sunwoo Lee
arXiv AI
Jul 7

Decentralised Federated Learning over Temporal Networks: The Role of Heterogeneities

arXiv:2607. 03171v1 Announce Type: cross Abstract: Decentralised federated learning, based on peer-to-peer communication, is increasingly proposed for on-device training of machine learning models, promising a privacy-preserving, communication-efficient training process with no risk of single-point failure.

By Arash Badie-Modiri, Chiara Boldrini, Lorenzo Valerio, J\'anos Kert\'esz, M\'arton Karsai