activity
20242026
most citedAn Enhanced Federated Prototype Learning Method under Domain Shift

1 citations · 3 across the 6 of their papers we have counts for

collaborators

10 papers

cs.CV2026

FedBST: Bilateral Self-Training for Unsupervised Federated Classification

Aijing Yu, Kuangpu Guo, Jian Liang +1

Unsupervised federated learning with Vision-Language Models (e.g., CLIP) offers a promising solution for label-free classification, yet its performance often degrades under severe…

cs.CL2026

Facts Don't Speak Louder than Words: The Behavioral Essence of Long-CoT Distillation

Yongcan Yu, Jian Liang, Lingxiao He +5

While long chain-of-thought (CoT) distillation significantly improves the reasoning abilities of language models, its underlying mechanism remains poorly understood. Current pipeli…

cs.LG2026

On the Vulnerability of Parameter-Level Defenses to Model Merging

Kuangpu Guo, Qingyan Zheng, Jian Liang +4

The training-free integration of expert models via model merging has exposed significant security risks, enabling free-riders to combine specialized models without authorization. R…

cs.LG2026

Understanding and Mitigating Spurious Signal Amplification in Test-Time Reinforcement Learning for Math Reasoning

Yongcan Yu, Lingxiao He, Jian Liang +5

Test-time reinforcement learning (TTRL) always adapts models at inference time via pseudo-labeling, leaving it vulnerable to spurious optimization signals from label noise. Through…

cs.LG2025★ 1 cited

Reassessing the Role of Supervised Fine-Tuning: An Empirical Study in VLM Reasoning

Yongcan Yu, Lingxiao He, Shuo Lu +10

Recent advances in vision-language models (VLMs) reasoning have been largely attributed to the rise of reinforcement Learning (RL), which has shifted the community's focus away fro…

cs.LG2025

Stay Unique, Stay Efficient: Preserving Model Personality in Multi-Task Merging

Kuangpu Guo, Aijing Yu, Jian Liang +4

Model merging has emerged as a promising paradigm for enabling multi-task capabilities without additional training. However, traditional basic merging methods often experience perf…

cs.CV2025

Cooperative Pseudo Labeling for Unsupervised Federated Classification

Kuangpu Guo, Lijun Sheng, Yongcan Yu +3

Unsupervised Federated Learning (UFL) aims to collaboratively train a global model across distributed clients without sharing data or accessing label information. Previous UFL work…

cs.LG2025

Personalized Federated Learning via Dual-Prompt Optimization and Cross Fusion

Yuguang Zhang, Kuangpu Guo, Zhihe Lu +2

Federated learning (FL) enables collaborative model training across decentralized clients without sharing local data, but is challenged by heterogeneity in data, computation, and c…

cs.LG2024★ 1 cited

An Enhanced Federated Prototype Learning Method under Domain Shift

Liang Kuang, Kuangpu Guo, Jian Liang +1

Federated Learning (FL) allows collaborative machine learning training without sharing private data. Numerous studies have shown that one significant factor affecting the performan…

cs.LG2024★ 1 cited

Exploring Vacant Classes in Label-Skewed Federated Learning

Kuangpu Guo, Yuhe Ding, Jian Liang +3

Label skews, characterized by disparities in local label distribution across clients, pose a significant challenge in federated learning. As minority classes suffer from worse accu…