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Pengxin Guo

4 accepted papers

2025

A New Federated Learning Framework Against Gradient Inversion Attacks

AAAI 2025technical

Federated Learning (FL) aims to protect data privacy by enabling clients to collectively train machine learning models without sharing their raw data. However, recent studies demonstrate that information exchanged during FL is subject to Gradient Inversion Attacks (GIA) and, consequently, a variety…

2025

Selective Aggregation for Low-Rank Adaptation in Federated Learning

ICLR 2025poster

We investigate LoRA in federated learning through the lens of the asymmetry analysis of the learned $A$ and $B$ matrices. In doing so, we uncover that $A$ matrices are responsible for learning general knowledge, while $B$ matrices focus on capturing client-specific knowledge. Based on this finding,…

2024

A Force-driven and Vision-driven Hybrid Control Method of Autonomous Laparoscope-Holding Robot

ICRA 2024poster

Laparoscope-holding robots significantly enhance the stability and precision of visualization in minimally invasive surgeries. Most existing robots of this kind depend on visual servo systems and struggle with efficient, rapid adjustments in the field-of-view (FOV), especially when identifying organ…

Cited by 0SourceScholar
2021

Multi-Objective Meta Learning

NeurIPS 2021poster

Meta learning with multiple objectives has been attracted much attention recently since many applications need to consider multiple factors when designing learning models. Existing gradient-based works on meta learning with multiple objectives mainly combine multiple objectives into a single objecti…