FedX: Unsupervised Federated Learning with Cross Knowledge Distillation
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Abstract (arXiv)
This paper presents FedX, an unsupervised federated learning framework. Our model learns unbiased representation from decentralized and heterogeneous local data. It employs a two-sided knowledge distillation with contrastive learning as a core component, allowing the federated system to function without requiring clients to share any data features. Furthermore, its adaptable architecture can be used as an add-on module for existing unsupervised algorithms in federated settings. Experiments show that our model improves performance significantly (1.58--5.52pp) on five unsupervised algorithms.
Key facts. Cited by 40 papers in the map (data through 7 Oct 2026). Builds on 36 of its 47 references that are in the map. First posted on arXiv 19 Jul 2022.
Builds on
36 of 47 references.
References · 36
- 2015Deep Residual Learning for Image Recognitioncited by 51,809
- 2020A Simple Framework for Contrastive Learning of Visual Representationscited by 11,979
- 2015Distilling the Knowledge in a Neural Networkcited by 10,076
- 2018Representation Learning with Contrastive Predictive Codingcited by 7,662
- 2016Communication-Efficient Learning of Deep Networks from Decentralized Datacited by 7,592
- 2019Momentum Contrast for Unsupervised Visual Representation Learningcited by 7,482
- 2020Bootstrap your own latent: A new approach to self-supervised Learningcited by 4,712
- 2017Fashion-MNIST: a Novel Image Dataset for Benchmarking Machine Learning Algorithmscited by 4,283
- 2018Federated Optimization in Heterogeneous Networkscited by 2,971
- 2020Exploring Simple Siamese Representation Learningcited by 2,853
- 2015Unsupervised Representation Learning with Deep Convolutional Generative Adversarial Networkscited by 2,048
- 2018Unsupervised Representation Learning by Predicting Image Rotationscited by 1,586
24 more
- 2019Federated Learning: Challenges, Methods, and Future Directionscited by 1,531
- 2018Federated Learning with Non-IID Datacited by 1,099
- 2016Paying More Attention to Attention: Improving the Performance of Convolutional Neural Networks via Attention Transfercited by 1,059
- 2020Tackling the Objective Inconsistency Problem in Heterogeneous Federated Optimizationcited by 897
- 2019Relational Knowledge Distillationcited by 873
- 2019Measuring the Effects of Non-Identical Data Distribution for Federated Visual Classificationcited by 836
- 2019Towards Federated Learning at Scale: System Designcited by 826
- 2021Model-Contrastive Federated Learningcited by 762
- 2020Prototypical Contrastive Learning of Unsupervised Representationscited by 636
- 2020Federated Learning with Matched Averagingcited by 564
- 2021A Field Guide to Federated Optimizationcited by 312
- 2020Representation Learning via Invariant Causal Mechanismscited by 197
- 2018Multi-Institutional Deep Learning Modeling Without Sharing Patient Data: A Feasibility Study on Brain Tumor Segmentationcited by 148
- 2020FedVision: An Online Visual Object Detection Platform Powered by Federated Learningcited by 121
- 2020Self-Knowledge Distillation with Progressive Refinement of Targetscited by 106
- 2020Federated Unsupervised Representation Learningcited by 92
- 2021Collaborative Unsupervised Visual Representation Learning from Decentralized Datacited by 68
- 2020Improving Unsupervised Image Clustering With Robust Learningcited by 51
- 2020Performance Optimization for Federated Person Re-identification via Benchmark Analysiscited by 50
- 2021Refine Myself by Teaching Myself: Feature Refinement via Self-Knowledge Distillationcited by 46
- 2021Mutual Contrastive Learning for Visual Representation Learningcited by 42
- 2020ISD: Self-Supervised Learning by Iterative Similarity Distillationcited by 33
- 2021Distill on the Go: Online knowledge distillation in self-supervised learningcited by 22
- 2022Knowledge Sharing via Domain Adaptation in Customs Fraud Detectioncited by 5
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Citing papers per year: 2022: 5; 2023: 9; 2024: 13; 2025: 11; 2026: 2.
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- 2022Decentralized Federated Learning: Fundamentals, State of the Art, Frameworks, Trends, and Challengescited by 137
- 2023Cross-Silo Prototypical Calibration for Federated Learning with Non-IID Datacited by 35
- 2024FedLLM-Bench: Realistic Benchmarks for Federated Learning of Large Language Modelscited by 26
- 2022A Hybrid Self-Supervised Learning Framework for Vertical Federated Learningcited by 17
- 2024Federated Distillation: A Surveycited by 14
- 2023Federated Learning without Full Labels: A Surveycited by 12
- 2023FedDefender: Client-Side Attack-Tolerant Federated Learningcited by 12
- 2024Rethinking the Representation in Federated Unsupervised Learning with Non-IID Datacited by 12
- 2023ProtoFL: Unsupervised Federated Learning via Prototypical Distillationcited by 11
- 2022FeDXL: Provable Federated Learning for Deep X-Risk Optimizationcited by 10
- 2024A Comprehensive Survey of Federated Transfer Learning: Challenges, Methods and Applicationscited by 8
- 2024Knowledge Distillation in Federated Learning: a Survey on Long Lasting Challenges and New Solutionscited by 8
28 more
- 2024Fast-Convergent and Communication-Alleviated Heterogeneous Hierarchical Federated Learning in Autonomous Drivingcited by 8
- 2023Towards Attack-tolerant Federated Learning via Critical Parameter Analysiscited by 7
- 2024Federated Unsupervised Domain Generalization using Global and Local Alignment of Gradientscited by 7
- 2024FedSC: Provable Federated Self-supervised Learning with Spectral Contrastive Objective over Non-i.i.d. Datacited by 5
- 2025Federated Retrieval-Augmented Generation: A Systematic Mapping Studycited by 5
- 2023Tackling the Non-IID Issue in Heterogeneous Federated Learning by Gradient Harmonizationcited by 4
- 2024CCFC: Bridging Federated Clustering and Contrastive Learningcited by 3
- 2025FORLA: Federated Object-centric Representation Learning with Slot Attentioncited by 3
- 2025FedDifRC: Unlocking the Potential of Text-to-Image Diffusion Models in Heterogeneous Federated Learningcited by 3
- 2025Research in Collaborative Learning Does Not Serve Cross-Silo Federated Learning in Practicecited by 3
- 2022Feature Correlation-guided Knowledge Transfer for Federated Self-supervised Learningcited by 1
- 2023Masked Autoencoders are Efficient Continual Federated Learnerscited by 1
- 2023UFed-GAN: A Secure Federated Learning Framework with Constrained Computation and Unlabeled Datacited by 1
- 2024Distributionally Robust Alignment for Medical Federated Vision-Language Pre-training Under Data Heterogeneitycited by 1
- 2025Hierarchical Knowledge Structuring for Effective Federated Learning in Heterogeneous Environmentscited by 1
- 2022Federated Unsupervised Visual Representation Learning via Exploiting General Content and Personal Stylecited by 0
- 2023Federated Semi-Supervised Learning with Annotation Heterogeneitycited by 0
- 2024FedMID: A Data-Free Method for Using Intermediate Outputs as a Defense Mechanism Against Poisoning Attacks in Federated Learningcited by 0
- 2024Federated Black-Box Adaptation for Semantic Segmentationcited by 0
- 2024Federated Deep Subspace Clusteringcited by 0
- 2025FedDyMem: Efficient Federated Learning with Dynamic Memory and Memory-Reduce for Unsupervised Image Anomaly Detectioncited by 0
- 2025Soft Separation and Distillation: Toward Global Uniformity in Federated Unsupervised Learningcited by 0
- 2025FedLAD: A Linear Algebra Based Data Poisoning Defence for Federated Learningcited by 0
- 2025FedUHD: Unsupervised Federated Learning using In-Memory Hyperdimensional Computingcited by 0
- 2025Cooperative Pseudo Labeling for Unsupervised Federated Classificationcited by 0
- 2025Federated Multi-Task Clusteringcited by 0
- 2026Sheaf-Based Federated Representation Learningcited by 0
- 2026Coordination on a Budget: Federated Active Learning with Few Labelscited by 0
- 2026Coordination on a Budget: Federated Active Learning with Few Labels19 Aug 2026
- 2026Sheaf-Based Federated Representation Learning8 Aug 2026
- 2025Federated Multi-Task Clustering28 Dec 2025
- 2025Research in Collaborative Learning Does Not Serve Cross-Silo Federated Learning in Practice14 Oct 2025
- 2025Cooperative Pseudo Labeling for Unsupervised Federated Classification11 Oct 2025
- 2025FedUHD: Unsupervised Federated Learning using In-Memory Hyperdimensional Computing16 Aug 2025
- 2025FedLAD: A Linear Algebra Based Data Poisoning Defence for Federated Learning4 Aug 2025
- 2025Soft Separation and Distillation: Toward Global Uniformity in Federated Unsupervised Learning2 Aug 2025
- 2025FedDifRC: Unlocking the Potential of Text-to-Image Diffusion Models in Heterogeneous Federated Learning9 Jul 2025
- 2025FORLA: Federated Object-centric Representation Learning with Slot Attention3 Jun 2025
- 2025Federated Retrieval-Augmented Generation: A Systematic Mapping Study24 May 2025
- 2025Hierarchical Knowledge Structuring for Effective Federated Learning in Heterogeneous Environments4 Apr 2025
28 more
- 2025FedDyMem: Efficient Federated Learning with Dynamic Memory and Memory-Reduce for Unsupervised Image Anomaly Detection28 Feb 2025
- 2024Federated Deep Subspace Clustering31 Dec 2024
- 2024Federated Black-Box Adaptation for Semantic Segmentation31 Oct 2024
- 2024Fast-Convergent and Communication-Alleviated Heterogeneous Hierarchical Federated Learning in Autonomous Driving29 Sep 2024
- 2024Knowledge Distillation in Federated Learning: a Survey on Long Lasting Challenges and New Solutions16 Jun 2024
- 2024FedLLM-Bench: Realistic Benchmarks for Federated Learning of Large Language Models7 Jun 2024
- 2024Federated Unsupervised Domain Generalization using Global and Local Alignment of Gradients25 May 2024
- 2024FedSC: Provable Federated Self-supervised Learning with Spectral Contrastive Objective over Non-i.i.d. Data7 May 2024
- 2024FedMID: A Data-Free Method for Using Intermediate Outputs as a Defense Mechanism Against Poisoning Attacks in Federated Learning18 Apr 2024
- 2024Distributionally Robust Alignment for Medical Federated Vision-Language Pre-training Under Data Heterogeneity5 Apr 2024
- 2024Federated Distillation: A Survey2 Apr 2024
- 2024Rethinking the Representation in Federated Unsupervised Learning with Non-IID Data25 Mar 2024
- 2024A Comprehensive Survey of Federated Transfer Learning: Challenges, Methods and Applications3 Mar 2024
- 2024CCFC: Bridging Federated Clustering and Contrastive Learning12 Jan 2024
- 2023Tackling the Non-IID Issue in Heterogeneous Federated Learning by Gradient Harmonization13 Sep 2023
- 2023Towards Attack-tolerant Federated Learning via Critical Parameter Analysis18 Aug 2023
- 2023UFed-GAN: A Secure Federated Learning Framework with Constrained Computation and Unlabeled Data10 Aug 2023
- 2023Cross-Silo Prototypical Calibration for Federated Learning with Non-IID Data7 Aug 2023
- 2023ProtoFL: Unsupervised Federated Learning via Prototypical Distillation23 Jul 2023
- 2023FedDefender: Client-Side Attack-Tolerant Federated Learning18 Jul 2023
- 2023Masked Autoencoders are Efficient Continual Federated Learners6 Jun 2023
- 2023Federated Learning without Full Labels: A Survey25 Mar 2023
- 2023Federated Semi-Supervised Learning with Annotation Heterogeneity4 Mar 2023
- 2022Decentralized Federated Learning: Fundamentals, State of the Art, Frameworks, Trends, and Challenges15 Nov 2022
- 2022Feature Correlation-guided Knowledge Transfer for Federated Self-supervised Learning14 Nov 2022
- 2022Federated Unsupervised Visual Representation Learning via Exploiting General Content and Personal Style11 Nov 2022
- 2022FeDXL: Provable Federated Learning for Deep X-Risk Optimization26 Oct 2022
- 2022A Hybrid Self-Supervised Learning Framework for Vertical Federated Learning18 Aug 2022
- 2022Decentralized Federated Learning: Fundamentals, State of the Art, Frameworks, Trends, and Challengescited by 137
- 2023Cross-Silo Prototypical Calibration for Federated Learning with Non-IID Datacited by 35
- 2024FedLLM-Bench: Realistic Benchmarks for Federated Learning of Large Language Modelscited by 26
- 2022A Hybrid Self-Supervised Learning Framework for Vertical Federated Learningcited by 17
- 2024Federated Distillation: A Surveycited by 14
- 2023Federated Learning without Full Labels: A Surveycited by 12
- 2023FedDefender: Client-Side Attack-Tolerant Federated Learningcited by 12
- 2024Rethinking the Representation in Federated Unsupervised Learning with Non-IID Datacited by 12
- 2023ProtoFL: Unsupervised Federated Learning via Prototypical Distillationcited by 11
- 2022FeDXL: Provable Federated Learning for Deep X-Risk Optimizationcited by 10
- 2024A Comprehensive Survey of Federated Transfer Learning: Challenges, Methods and Applicationscited by 8
- 2024Knowledge Distillation in Federated Learning: a Survey on Long Lasting Challenges and New Solutionscited by 8
12 most cited of 36 All 36 (JSON)
- 2026Coordination on a Budget: Federated Active Learning with Few Labels19 Aug 2026
- 2026Sheaf-Based Federated Representation Learning8 Aug 2026
- 2025Federated Multi-Task Clustering28 Dec 2025
- 2025Research in Collaborative Learning Does Not Serve Cross-Silo Federated Learning in Practice14 Oct 2025
- 2025Cooperative Pseudo Labeling for Unsupervised Federated Classification11 Oct 2025
- 2025FedUHD: Unsupervised Federated Learning using In-Memory Hyperdimensional Computing16 Aug 2025
- 2025Soft Separation and Distillation: Toward Global Uniformity in Federated Unsupervised Learning2 Aug 2025
- 2025FORLA: Federated Object-centric Representation Learning with Slot Attention3 Jun 2025
- 2025Hierarchical Knowledge Structuring for Effective Federated Learning in Heterogeneous Environments4 Apr 2025
- 2025FedDyMem: Efficient Federated Learning with Dynamic Memory and Memory-Reduce for Unsupervised Image Anomaly Detection28 Feb 2025
- 2024Federated Deep Subspace Clustering31 Dec 2024
- 2024Federated Black-Box Adaptation for Semantic Segmentation31 Oct 2024
12 newest of 36 All 36 (JSON)