activity
20222026
most citedRevisiting Weighted Aggregation in Federated Learning with Neural Networks

19 citations · 38 across the 9 of their papers we have counts for

collaborators

9 papers

cs.CV2026

Fine-Tuning Impairs the Balancedness of Foundation Models in Long-tailed Personalized Federated Learning

Shihao Hou, Chikai Shang, Zhiheng Yang +5

Personalized federated learning (PFL) with foundation models has emerged as a promising paradigm enabling clients to adapt to heterogeneous data distributions. However, real-world…

cs.LG2025

CAPT: Class-Aware Prompt Tuning for Federated Long-Tailed Learning with Vision-Language Model

Shihao Hou, Xinyi Shang, Shreyank N Gowda +4

Effectively handling the co-occurrence of non-IID data and long-tailed distributions remains a critical challenge in federated learning. While fine-tuning vision-language models (V…

cs.LG2024★ 1 cited

Personalized Federated Learning on Heterogeneous and Long-Tailed Data via Expert Collaborative Learning

Fengling Lv, Xinyi Shang, Yang Zhou +3

Personalized Federated Learning (PFL) aims to acquire customized models for each client without disclosing raw data by leveraging the collective knowledge of distributed clients. H…

cs.LG2023★ 2 cited

FediOS: Decoupling Orthogonal Subspaces for Personalization in Feature-skew Federated Learning

Lingzhi Gao, Zexi Li, Yang Lu +1

Personalized federated learning (pFL) enables collaborative training among multiple clients to enhance the capability of customized local models. In pFL, clients may have heterogen…

cs.LG2023★ 2 cited

Federated Semi-Supervised Learning with Annotation Heterogeneity

Xinyi Shang, Gang Huang, Yang Lu +4

Federated Semi-Supervised Learning (FSSL) aims to learn a global model from different clients in an environment with both labeled and unlabeled data. Most of the existing FSSL work…

cs.LG2023★ 3 cited

No Fear of Classifier Biases: Neural Collapse Inspired Federated Learning with Synthetic and Fixed Classifier

Zexi Li, Xinyi Shang, Rui He +2

Data heterogeneity is an inherent challenge that hinders the performance of federated learning (FL). Recent studies have identified the biased classifiers of local models as the ke…

cs.LG2023★ 19 cited

Revisiting Weighted Aggregation in Federated Learning with Neural Networks

Zexi Li, Tao Lin, Xinyi Shang +1

In federated learning (FL), weighted aggregation of local models is conducted to generate a global model, and the aggregation weights are normalized (the sum of weights is 1) and p…

cs.LG2022

FEDIC: Federated Learning on Non-IID and Long-Tailed Data via Calibrated Distillation

Xinyi Shang, Yang Lu, Yiu-ming Cheung +1

Federated learning provides a privacy guarantee for generating good deep learning models on distributed clients with different kinds of data. Nevertheless, dealing with non-IID dat…

cs.LG2022★ 11 cited

Federated Learning on Heterogeneous and Long-Tailed Data via Classifier Re-Training with Federated Features

Xinyi Shang, Yang Lu, Gang Huang +1

Federated learning (FL) provides a privacy-preserving solution for distributed machine learning tasks. One challenging problem that severely damages the performance of FL models is…