Dataset Dictionary Learning in a Wasserstein Space for Federated Domain Adaptation
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866909257401630720 |
|---|---|
| author | Montesuma, Eduardo Fernandes Castellon, Fabiola Espinoza Mboula, Fred Ngolè Mayoue, Aurélien Souloumiac, Antoine Gouy-Pailler, Cédric |
| author_facet | Montesuma, Eduardo Fernandes Castellon, Fabiola Espinoza Mboula, Fred Ngolè Mayoue, Aurélien Souloumiac, Antoine Gouy-Pailler, Cédric |
| contents | Multi-Source Domain Adaptation (MSDA) is a challenging scenario where multiple related and heterogeneous source datasets must be adapted to an unlabeled target dataset. Conventional MSDA methods often overlook that data holders may have privacy concerns, hindering direct data sharing. In response, decentralized MSDA has emerged as a promising strategy to achieve adaptation without centralizing clients' data. Our work proposes a novel approach, Decentralized Dataset Dictionary Learning, to address this challenge. Our method leverages Wasserstein barycenters to model the distributional shift across multiple clients, enabling effective adaptation while preserving data privacy. Specifically, our algorithm expresses each client's underlying distribution as a Wasserstein barycenter of public atoms, weighted by private barycentric coordinates. Our approach ensures that the barycentric coordinates remain undisclosed throughout the adaptation process. Extensive experimentation across five visual domain adaptation benchmarks demonstrates the superiority of our strategy over existing decentralized MSDA techniques. Moreover, our method exhibits enhanced robustness to client parallelism while maintaining relative resilience compared to conventional decentralized MSDA methodologies. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_11647 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Dataset Dictionary Learning in a Wasserstein Space for Federated Domain Adaptation Montesuma, Eduardo Fernandes Castellon, Fabiola Espinoza Mboula, Fred Ngolè Mayoue, Aurélien Souloumiac, Antoine Gouy-Pailler, Cédric Machine Learning Multi-Source Domain Adaptation (MSDA) is a challenging scenario where multiple related and heterogeneous source datasets must be adapted to an unlabeled target dataset. Conventional MSDA methods often overlook that data holders may have privacy concerns, hindering direct data sharing. In response, decentralized MSDA has emerged as a promising strategy to achieve adaptation without centralizing clients' data. Our work proposes a novel approach, Decentralized Dataset Dictionary Learning, to address this challenge. Our method leverages Wasserstein barycenters to model the distributional shift across multiple clients, enabling effective adaptation while preserving data privacy. Specifically, our algorithm expresses each client's underlying distribution as a Wasserstein barycenter of public atoms, weighted by private barycentric coordinates. Our approach ensures that the barycentric coordinates remain undisclosed throughout the adaptation process. Extensive experimentation across five visual domain adaptation benchmarks demonstrates the superiority of our strategy over existing decentralized MSDA techniques. Moreover, our method exhibits enhanced robustness to client parallelism while maintaining relative resilience compared to conventional decentralized MSDA methodologies. |
| title | Dataset Dictionary Learning in a Wasserstein Space for Federated Domain Adaptation |
| topic | Machine Learning |
| url | https://arxiv.org/abs/2407.11647 |