CLB-Defense: based on contrastive learning defense for graph neural network against backdoor attack

For the problem that the existing backdoor attack defense methods are difficult to deal with irregular and unstructured discrete graph data to alleviate the threat of backdoor attacks, a backdoor attack defense method for GNN based on contrastive learning was proposed, namely CLB-Defense.Specificall...

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Main Authors: Jinyin CHEN, Haiyang XIONG, Haonan MA, Yayu ZHENG
Format: Article
Language:zho
Published: Editorial Department of Journal on Communications 2023-04-01
Series:Tongxin xuebao
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Online Access:http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2023074/
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author Jinyin CHEN
Haiyang XIONG
Haonan MA
Yayu ZHENG
author_facet Jinyin CHEN
Haiyang XIONG
Haonan MA
Yayu ZHENG
author_sort Jinyin CHEN
collection DOAJ
description For the problem that the existing backdoor attack defense methods are difficult to deal with irregular and unstructured discrete graph data to alleviate the threat of backdoor attacks, a backdoor attack defense method for GNN based on contrastive learning was proposed, namely CLB-Defense.Specifically, a contrastive model was built by using contrastive learning in an unsupervised way, which searches suspicious backdoored samples.Then the suspicious backdoored samples were reshaped by using the graph importance indexes and the label smoothing strategy, and the defense against graph backdoor attack was realized.Finally, extensive experimental results show that CLB-Defense realizes the effect of defense performance on four public datasets and five popular graph backdoor attacks, e.g., CLB-Defense can reduce the attack success rate by an average of 75.66% (compared with the baselines, an improvement of 54.01%).
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institution Kabale University
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publisher Editorial Department of Journal on Communications
record_format Article
series Tongxin xuebao
spelling doaj-art-0eec1139c0354ccbbda74af36a43913d2025-01-14T06:28:28ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2023-04-014415416659390382CLB-Defense: based on contrastive learning defense for graph neural network against backdoor attackJinyin CHENHaiyang XIONGHaonan MAYayu ZHENGFor the problem that the existing backdoor attack defense methods are difficult to deal with irregular and unstructured discrete graph data to alleviate the threat of backdoor attacks, a backdoor attack defense method for GNN based on contrastive learning was proposed, namely CLB-Defense.Specifically, a contrastive model was built by using contrastive learning in an unsupervised way, which searches suspicious backdoored samples.Then the suspicious backdoored samples were reshaped by using the graph importance indexes and the label smoothing strategy, and the defense against graph backdoor attack was realized.Finally, extensive experimental results show that CLB-Defense realizes the effect of defense performance on four public datasets and five popular graph backdoor attacks, e.g., CLB-Defense can reduce the attack success rate by an average of 75.66% (compared with the baselines, an improvement of 54.01%).http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2023074/graph neural networkbackdoor attackrobustnessdefensecontrastive learning
spellingShingle Jinyin CHEN
Haiyang XIONG
Haonan MA
Yayu ZHENG
CLB-Defense: based on contrastive learning defense for graph neural network against backdoor attack
Tongxin xuebao
graph neural network
backdoor attack
robustness
defense
contrastive learning
title CLB-Defense: based on contrastive learning defense for graph neural network against backdoor attack
title_full CLB-Defense: based on contrastive learning defense for graph neural network against backdoor attack
title_fullStr CLB-Defense: based on contrastive learning defense for graph neural network against backdoor attack
title_full_unstemmed CLB-Defense: based on contrastive learning defense for graph neural network against backdoor attack
title_short CLB-Defense: based on contrastive learning defense for graph neural network against backdoor attack
title_sort clb defense based on contrastive learning defense for graph neural network against backdoor attack
topic graph neural network
backdoor attack
robustness
defense
contrastive learning
url http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2023074/
work_keys_str_mv AT jinyinchen clbdefensebasedoncontrastivelearningdefenseforgraphneuralnetworkagainstbackdoorattack
AT haiyangxiong clbdefensebasedoncontrastivelearningdefenseforgraphneuralnetworkagainstbackdoorattack
AT haonanma clbdefensebasedoncontrastivelearningdefenseforgraphneuralnetworkagainstbackdoorattack
AT yayuzheng clbdefensebasedoncontrastivelearningdefenseforgraphneuralnetworkagainstbackdoorattack