Search Results for author: Xianghua Xie

Found 13 papers, 7 papers with code

An Element-Wise Weights Aggregation Method for Federated Learning

1 code implementation24 Apr 2024 Yi Hu, Hanchi Ren, Chen Hu, Jingjing Deng, Xianghua Xie

A central challenge in FL is the effective aggregation of local model weights from disparate and potentially unbalanced participating clients.

In-context Prompt Learning for Test-time Vision Recognition with Frozen Vision-language Model

no code implementations10 Mar 2024 Junhui Yin, Xinyu Zhang, Lin Wu, Xianghua Xie, Xiaojie Wang

To this end, we explore the concept of test-time prompt tuning (TTPT), which enables the adaptation of the CLIP model to novel downstream tasks through only one step of optimization on an unsupervised objective that involves the test sample.

In-Context Learning Language Modelling +1

A Survey on Vulnerability of Federated Learning: A Learning Algorithm Perspective

1 code implementation27 Nov 2023 Xianghua Xie, Chen Hu, Hanchi Ren, Jingjing Deng

In this survey paper, our research indicates that the to-learn data, the learning gradients, and the learned model at different stages all can be manipulated to initiate malicious attacks that range from undermining model performance, reconstructing private local data, and to inserting backdoors.

Federated Learning Privacy Preserving

Steel Surface Roughness Parameter Calculations Using Lasers and Machine Learning Models

no code implementations6 Jul 2023 Alex Milne, Xianghua Xie

By comparing a selection of data-driven approaches, including both deep learning and non-deep learning methods, to the close-form transformation, we evaluate their potential for improving surface texture control in temper strip steel manufacturing.

Gradient Leakage Defense with Key-Lock Module for Federated Learning

1 code implementation6 May 2023 Hanchi Ren, Jingjing Deng, Xianghua Xie, Xiaoke Ma, Jianfeng Ma

Our proposed learning method is resistant to gradient leakage attacks, and the key-lock module is designed and trained to ensure that, without the private information of the key-lock module: a) reconstructing private training data from the shared gradient is infeasible; and b) the global model's inference performance is significantly compromised.

Federated Learning Privacy Preserving

Predicting Surface Texture in Steel Manufacturing at Speed

1 code implementation20 Jan 2023 Alexander J. M. Milne, Xianghua Xie

Control of the surface texture of steel strip during the galvanizing and temper rolling processes is essential to satisfy customer requirements and is conventionally measured post-production using a stylus.

Jacobian Norm with Selective Input Gradient Regularization for Improved and Interpretable Adversarial Defense

no code implementations9 Jul 2022 Deyin Liu, Lin Wu, Haifeng Zhao, Farid Boussaid, Mohammed Bennamoun, Xianghua Xie

Moreover, adversarially training a defense model in general cannot produce interpretable predictions towards the inputs with perturbations, whilst a highly interpretable robust model is required by different domain experts to understand the behaviour of a DNN.

Adversarial Defense

GRNN: Generative Regression Neural Network -- A Data Leakage Attack for Federated Learning

1 code implementation2 May 2021 Hanchi Ren, Jingjing Deng, Xianghua Xie

In this paper, we show that, in the FL system, image-based privacy data can be easily recovered in full from the shared gradient only via our proposed Generative Regression Neural Network (GRNN).

Federated Learning Generative Adversarial Network +2

Scene Context-Aware Salient Object Detection

1 code implementation ICCV 2021 Avishek Siris, Jianbo Jiao, Gary K.L. Tam, Xianghua Xie, Rynson W.H. Lau

To our knowledge, such high-level semantic contextual information of image scenes is under-explored for saliency detection in the literature.

Object object-detection +3

Learnable Gabor modulated complex-valued networks for orientation robustness

no code implementations23 Nov 2020 Felix Richards, Adeline Paiement, Xianghua Xie, Elisabeth Sola, Pierre-Alain Duc

Robustness to transformation is desirable in many computer vision tasks, given that input data often exhibits pose variance.

Data Augmentation Translation

FedBoosting: Federated Learning with Gradient Protected Boosting for Text Recognition

2 code implementations14 Jul 2020 Hanchi Ren, Jingjing Deng, Xianghua Xie, Xiaoke Ma, Yichuan Wang

Typical machine learning approaches require centralized data for model training, which may not be possible where restrictions on data sharing are in place due to, for instance, privacy and gradient protection.

Federated Learning

Graph Based Convolutional Neural Network

no code implementations28 Sep 2016 Michael Edwards, Xianghua Xie

Signal filters take the form of spectral multipliers, applying convolution in the graph spectral domain.

BIG-bench Machine Learning General Classification +1

From Pose to Activity: Surveying Datasets and Introducing CONVERSE

no code implementations18 Nov 2015 Michael Edwards, Jingjing Deng, Xianghua Xie

We present a review on the current state of publicly available datasets within the human action recognition community; highlighting the revival of pose based methods and recent progress of understanding person-person interaction modeling.

Action Recognition Temporal Action Localization

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