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Fengyuan Yu

5 accepted papers

2026

Demystifying the Optimal Fair Classifier in Multi-Class Classification

ICML 2026poster

Ensuring fair and equitable treatment across diverse groups, particularly in multi-class classification tasks, poses a significant challenge due to the persistent biases inherent in machine learning models. Most existing bias mitigation techniques are tailored to binary settings, and the presence of…

Cited by 0SourceScholar
2026

FedAU2: Attribute Unlearning for User-Level Federated Recommender Systems with Adaptive and Robust Adversarial Training

AAAI 2026technical

Federated Recommender Systems (FedRecs) leverage federated learning to protect user privacy by retaining data locally. However, user embeddings in FedRecs often encode sensitive attribute information, rendering them vulnerable to attribute inference attacks. Attribute unlearning has emerged as a pro

Cited by 0SourcePDFScholar
2024

FOOGD: Federated Collaboration for Both Out-of-distribution Generalization and Detection

NeurIPS 2024poster

Federated learning (FL) is a promising machine learning paradigm that collaborates with client models to capture global knowledge. However, deploying FL models in real-world scenarios remains unreliable due to the coexistence of in-distribution data and unexpected out-of-distribution (OOD) data, suc…

2024

Rethinking the Representation in Federated Unsupervised Learning with Non-IID Data

CVPR 2024poster

Federated learning achieves effective performance in modeling decentralized data. In practice client data are not well-labeled which makes it potential for federated unsupervised learning (FUSL) with non-IID data. However the performance of existing FUSL methods suffers from insufficient representat…

Cited by 17SourcePDFScholar