Search Results for author: Yong Xiang

Found 26 papers, 3 papers with code

Data and Model Poisoning Backdoor Attacks on Wireless Federated Learning, and the Defense Mechanisms: A Comprehensive Survey

no code implementations14 Dec 2023 Yichen Wan, Youyang Qu, Wei Ni, Yong Xiang, Longxiang Gao, Ekram Hossain

Wireless FL (WFL) is a distributed method of training a global deep learning model in which a large number of participants each train a local model on their training datasets and then upload the local model updates to a central server.

Data Poisoning Federated Learning +1

AGRAMPLIFIER: Defending Federated Learning Against Poisoning Attacks Through Local Update Amplification

no code implementations13 Nov 2023 Zirui Gong, Liyue Shen, Yanjun Zhang, Leo Yu Zhang, Jingwei Wang, Guangdong Bai, Yong Xiang

By equipping AGRAMPLIFIER with the existing Byzantine-robust mechanisms, we successfully enhance the model's robustness, maintaining its fidelity and improving overall efficiency.

Federated Learning

SE-shapelets: Semi-supervised Clustering of Time Series Using Representative Shapelets

no code implementations6 Apr 2023 Borui Cai, Guangyan Huang, Shuiqiao Yang, Yong Xiang, Chi-Hung Chi

Shapelets that discriminate time series using local features (subsequences) are promising for time series clustering.

Clustering Time Series +1

From Wide to Deep: Dimension Lifting Network for Parameter-efficient Knowledge Graph Embedding

no code implementations22 Mar 2023 Borui Cai, Yong Xiang, Longxiang Gao, Di wu, He Zhang, Jiong Jin, Tom Luan

To seek a simple strategy to improve the parameter efficiency of conventional KGE models, we take inspiration from that deeper neural networks require exponentially fewer parameters to achieve expressiveness comparable to wider networks for compositional structures.

Knowledge Distillation Knowledge Graph Embedding +2

Hybrid Variational Autoencoder for Time Series Forecasting

no code implementations13 Mar 2023 Borui Cai, Shuiqiao Yang, Longxiang Gao, Yong Xiang

Variational autoencoders (VAE) are powerful generative models that learn the latent representations of input data as random variables.

Time Series Time Series Forecasting +1

Representing Noisy Image Without Denoising

1 code implementation18 Jan 2023 Shuren Qi, Yushu Zhang, Chao Wang, Tao Xiang, Xiaochun Cao, Yong Xiang

In this paper, we explore a non-learning paradigm that aims to derive robust representation directly from noisy images, without the denoising as pre-processing.

Data Augmentation Image Denoising

An Efficient and Reliable Asynchronous Federated Learning Scheme for Smart Public Transportation

1 code implementation15 Aug 2022 Chenhao Xu, Youyang Qu, Tom H. Luan, Peter W. Eklund, Yong Xiang, Longxiang Gao

Asynchronous Federated Learning (AFL) is a scheme that reduces the latency of aggregation to improve efficiency, but the learning performance is unstable due to unreasonably weighted local models.

Federated Learning

Temporal Knowledge Graph Completion: A Survey

no code implementations16 Jan 2022 Borui Cai, Yong Xiang, Longxiang Gao, He Zhang, Yunfeng Li, JianXin Li

KGC methods assume a knowledge graph is static, but that may lead to inaccurate prediction results because many facts in the knowledge graphs change over time.

Temporal Knowledge Graph Completion World Knowledge

Semantic Code Search for Smart Contracts

no code implementations28 Nov 2021 Chaochen Shi, Yong Xiang, Jiangshan Yu, Longxiang Gao

To make the model more focused on the key contextual information, we use a multi-head attention network to generate embeddings for code features.

Code Search

Prototype-Guided Memory Replay for Continual Learning

no code implementations28 Aug 2021 Stella Ho, Ming Liu, Lan Du, Longxiang Gao, Yong Xiang

Continual learning (CL) refers to a machine learning paradigm that learns continuously without forgetting previously acquired knowledge.

Continual Learning Meta-Learning +3

A Bytecode-based Approach for Smart Contract Classification

no code implementations31 May 2021 Chaochen Shi, Yong Xiang, Robin Ram Mohan Doss, Jiangshan Yu, Keshav Sood, Longxiang Gao

Our experimental studies on over 3, 300 real-world Ethereum smart contracts show that our model can classify smart contracts without source code and has better performance than baseline models.

Classification Ensemble Learning +1

SCEI: A Smart-Contract Driven Edge Intelligence Framework for IoT Systems

no code implementations12 Mar 2021 Chenhao Xu, Jiaqi Ge, Yong Li, Yao Deng, Longxiang Gao, Mengshi Zhang, Yong Xiang, Xi Zheng

Federated learning (FL) enables collaborative training of a shared model on edge devices while maintaining data privacy.

Edge-computing Federated Learning +1

Chaotic-to-Fine Clustering for Unlabeled Plant Disease Images

no code implementations18 Jan 2021 Uno Fang, JianXin Li, Xuequan Lu, Mumtaz Ali, Longxiang Gao, Yong Xiang

Current annotation for plant disease images depends on manual sorting and handcrafted features by agricultural experts, which is time-consuming and labour-intensive.

Clustering

Scene Image Representation by Foreground, Background and Hybrid Features

no code implementations5 Jun 2020 Chiranjibi Sitaula, Yong Xiang, Sunil Aryal, Xuequan Lu

In this paper, we propose to use hybrid features in addition to foreground and background features to represent scene images.

General Classification

Content and Context Features for Scene Image Representation

no code implementations5 Jun 2020 Chiranjibi Sitaula, Sunil Aryal, Yong Xiang, Anish Basnet, Xuequan Lu

Existing research in scene image classification has focused on either content features (e. g., visual information) or context features (e. g., annotations).

General Classification Image Classification

Image-Based Feature Representation for Insider Threat Classification

no code implementations13 Nov 2019 Gayathri R G, Atul Sajjanhar, Yong Xiang

The insider threat analysis is mainly done using the frequency based attributes extracted from the raw data available from data sources.

Classification General Classification +1

Variational Auto-encoder Based Bayesian Poisson Tensor Factorization for Sparse and Imbalanced Count Data

no code implementations12 Oct 2019 Yuan Jin, Ming Liu, Yunfeng Li, Ruohua Xu, Lan Du, Longxiang Gao, Yong Xiang

Under synthetic data evaluation, VAE-BPTF tended to recover the right number of latent factors and posterior parameter values.

Unsupervised Deep Features for Privacy Image Classification

no code implementations24 Sep 2019 Chiranjibi Sitaula, Yong Xiang, Sunil Aryal, Xuequan Lu

Sharing images online poses security threats to a wide range of users due to the unawareness of privacy information.

Classification Clustering +2

Tag-based Semantic Features for Scene Image Classification

no code implementations22 Sep 2019 Chiranjibi Sitaula, Yong Xiang, Anish Basnet, Sunil Aryal, Xuequan Lu

In this paper, we introduce novel semantic features of an image based on the annotations and descriptions of its similar images available on the web.

Classification General Classification +2

Indoor image representation by high-level semantic features

no code implementations12 Jun 2019 Chiranjibi Sitaula, Yong Xiang, Yushu Zhang, Xuequan Lu, Sunil Aryal

Nevertheless, most of the existing feature extraction methods, which extract features based on pixels, color, shape/object parts or objects on images, suffer from limited capabilities in describing semantic information (e. g., object association).

General Classification Image Classification +1

A Technical Survey on Statistical Modelling and Design Methods for Crowdsourcing Quality Control

no code implementations5 Dec 2018 Yuan Jin, Mark Carman, Ye Zhu, Yong Xiang

Our survey is the first to bridge the two branches by providing technical details on how they work together under frameworks that systematically unify crowdsourcing aspects modelled by both of them to determine the response quality.

BIG-bench Machine Learning

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