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Think Locally, Act Globally: Federated Learning with Local and Global Representations

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arxiv 2001.01523 v3 pith:MI47VKV6 submitted 2020-01-06 cs.LG cs.DCstat.ML

classification cs.LGcs.DCstat.ML
keywords localdataglobalmodelsrepresentationsdevicedevicesfederated
verification ladder T0 review T1 audit T2 compute T3 formal
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Federated learning is a method of training models on private data distributed over multiple devices. To keep device data private, the global model is trained by only communicating parameters and updates which poses scalability challenges for large models. To this end, we propose a new federated learning algorithm that jointly learns compact local representations on each device and a global model across all devices. As a result, the global model can be smaller since it only operates on local representations, reducing the number of communicated parameters. Theoretically, we provide a generalization analysis which shows that a combination of local and global models reduces both variance in the data as well as variance across device distributions. Empirically, we demonstrate that local models enable communication-efficient training while retaining performance. We also evaluate on the task of personalized mood prediction from real-world mobile data where privacy is key. Finally, local models handle heterogeneous data from new devices, and learn fair representations that obfuscate protected attributes such as race, age, and gender.

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Cited by 14 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. From Coordinate Matching to Structural Alignment: Rethinking Prototype Alignment in Heterogeneous Federated Learning

    cs.AI 2026-05 unverdicted novelty 7.0 of 10

    FedSAF shifts prototype alignment in heterogeneous federated learning from coordinate matching to inter-class structural relations and reports up to 3.52% gains over prior methods.

  2. FedOBP: Federated Optimal Brain Personalization through Cloud-Edge Element-wise Decoupling

    cs.LG 2026-04 unverdicted novelty 7.0 of 10

    FedOBP introduces a quantile-thresholded importance score based on a federated first-order Taylor approximation to select a small set of parameters for personalization, claiming better performance than prior PFL methods.

  3. Enhancing Visual Representation with Textual Semantics: Textual Semantics-Powered Prototypes for Heterogeneous Federated Learning

    cs.LG 2025-03 unverdicted novelty 7.0 of 10

    FedTSP builds class prototypes from LLM-generated text descriptions via PLMs and trainable prompts to preserve semantic relationships and reduce heterogeneity effects in federated learning.

  4. FedTopo: Relation-Level Topology Sharing for Model-Heterogeneous Federated Learning

    cs.LG 2026-07 conditional novelty 6.0 of 10

    Sharing class-relation topology with reliability weighting beats parameter, distillation, and prototype sharing under heterogeneous federated backbones on CIFAR and Tiny-ImageNet.

  5. Tuning-Free Efficient Estimation for Multi-Source Data via Covariance-Aware Shrinkage

    stat.ME 2026-06 unverdicted novelty 6.0 of 10

    Proposes a covariance-aware tuning-free shrinkage framework and sequential algorithm for multi-source estimation that attains oracle risk asymptotically and improves on single-step methods.

  6. FedCoE: Bridging Generalization and Personalization via Federated Coordinated Dual-level MoEs

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    FedCoE proposes a coordinated dual-level MoE framework for federated learning that improves global and personalized accuracy while enabling strong cold-start performance for new clients.

  7. Reasoning on the Manifold: Bidirectional Consistency for Self-Verification in Diffusion Language Models

    cs.LG 2026-04 unverdicted novelty 6.0 of 10

    Bidirectional Manifold Consistency (BMC) is a geometric, training-free metric that quantifies stability of reasoning trajectories in diffusion LLMs to enable self-verification, rejection sampling, and alignment withou...

  8. FedTreeLoRA: Reconciling Statistical and Functional Heterogeneity in Federated LoRA Fine-Tuning

    cs.LG 2026-02 conditional novelty 6.0 of 10

    A federated LoRA fine-tuning method that builds a client-similarity tree and adapts aggregation depth layer-by-layer outperforms flat or global aggregation baselines on NLU and NLG tasks.

  9. FIRMA: FIbonacci Ring Model Aggregation for Privacy-preserving Federated Learning

    cs.LG 2026-05 unverdicted novelty 5.0 of 10

    FIRMA introduces Fibonacci ring aggregation protocols for server-free federated learning that maintain private heads and achieve higher accuracy than FedAvg under label skew across multiple benchmarks and heterogeneit...

  10. On the Tradeoffs of On-Device Generative Models in Federated Predictive Maintenance Systems

    cs.LG 2026-05 unverdicted novelty 5.0 of 10

    Experiments on real industrial time series show that partial model sharing improves diffusion model performance in bandwidth-limited non-IID settings, while full sharing stabilizes GAN training but offers less robustn...

  11. Reasoning on the Manifold: Bidirectional Consistency for Self-Verification in Diffusion Language Models

    cs.LG 2026-04 unverdicted novelty 5.0 of 10

    Bidirectional Manifold Consistency measures geometric stability of dLLM trajectories and is claimed to indicate reasoning correctness for diagnosis, rejection sampling, and reward-based alignment.

  12. PiXTime: A Model for Federated Time Series Forecasting with Heterogeneous Data across Nodes

    cs.LG 2026-01 conditional novelty 5.0 of 10

    A new federated transformer architecture uses personalized patch embeddings and a global variable-embedding table to forecast when different nodes have different sampling rates and variable sets.

  13. Generalizable Federated Learning using Client Adaptive Focal Modulation

    cs.CV 2025-08 reject novelty 4.0 of 10

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  14. From Data Heterogeneity to Convergence: A Data-Centric Review of Federated Learning

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    A data-centric survey of federated learning that ranks non-IID data traits by influence on convergence, links splitting protocols to real phenomena, and examines data-related defenses under clean and adversarial conditions.

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