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Zhongxuan Han

5 accepted papers

2026

TOFA: Training-Free One-Shot Federated Adaptation for Vision-Language Models

AAAI 2026technical

Efficient and lightweight adaptation of pre-trained Vision-Language Models (VLMs) to downstream tasks through collaborative interactions between local clients and a central server is a rapidly emerging research topic in federated learning. Existing adaptation algorithms are typically trained iterati

Cited by 0SourcePDFScholar
2025

FedFACT: A Provable Framework for Controllable Group-Fairness Calibration in Federated Learning

NeurIPS 2025poster

With emerging application of Federated Learning (FL) in decision-making scenarios, it is imperative to regulate model fairness to prevent disparities across sensitive groups (e.g., female, male). Current research predominantly focuses on two concepts of group fairness within FL: *Global Fairness* (o…

Cited by 0SourceScholar
2025

LoGoFair: Post-Processing for Local and Global Fairness in Federated Learning

AAAI 2025technical

Federated learning (FL) has garnered considerable interest for its capability to learn from decentralized data sources. Given the increasing application of FL in decision-making scenarios, addressing fairness issues across different sensitive groups (e.g., female, male) in FL is crucial. Current res…

2024

Intra- and Inter-group Optimal Transport for User-Oriented Fairness in Recommender Systems

AAAI 2024technical

Recommender systems are typically biased toward a small group of users, leading to severe unfairness in recommendation performance, i.e., User-Oriented Fairness (UOF) issue. Existing research on UOF exhibits notable limitations in two phases of recommendation models. In the training phase, current m…

Cited by 6SourcePDFScholar
2024

One for All: A Universal Generator for Concept Unlearnability via Multi-Modal Alignment

ICML 2024poster

The abundance of free internet data offers unprecedented opportunities for researchers and developers, but it also poses privacy risks. Utilizing data without explicit consent raises critical challenges in protecting personal information.Unlearnable examples have emerged as a feasible protection app…

Cited by 3SourcePDFScholar