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Privacy-Preserving Visual Content Tagging using Graph Transformer Networks

Vu, Xuan Son and Le, Duc Trong and Edlund, Christoffer and Jiang, Lili and Nguyen, Hoang D. (2020) Privacy-Preserving Visual Content Tagging using Graph Transformer Networks. In: The 28th ACM International Conference on Multimedia.

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With the rapid growth of Internet media, content tagging has become an important topic with many multimedia understanding applications, including efficient organisation and search. Nevertheless, existing visual tagging approaches are susceptible to inherent privacy risks in which private information may be exposed unintentionally. The use of anonymisation and privacy-protection methods is desirable, but with the expense of task performance.Therefore, this paper proposes an end-to-end framework (SGTN) using Graph Transformer and Convolutional Networks to significantly improve classification and privacy preservation of visual data. Especially, we employ several mechanisms such as differential privacy based graph construction and noise-induced graph transformation to protect the privacy of knowledge graphs. Our approach unveils new state-of-the-art on MS-COCO dataset in various semisupervised settings. In addition, we showcase a real experiment in the education domain to address the automation of sensitive document tagging. Experimental results show that our approach achieves an excellent balance of model accuracy and privacy preservation on both public and private datasets. Codes are available at

Item Type: Conference or Workshop Item (Paper)
Subjects: Information Technology (IT)
ISI/Scopus indexed conference
Divisions: Faculty of Information Technology (FIT)
Depositing User: Duc Trong Le
Date Deposited: 14 Dec 2020 05:02
Last Modified: 14 Dec 2020 05:03

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