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Protecting the anonymity of online users through Bayesian data synthesis
Journal article   Peer reviewed

Protecting the anonymity of online users through Bayesian data synthesis

Matthew J. Schneider, Jingchen Hu, Shawn Mankad and Cameron D. Bale
Expert systems with applications, v 216, p119409
15 Apr 2023

Abstract

Computer Science Computer Science, Artificial Intelligence Engineering Engineering, Electrical & Electronic Operations Research & Management Science Science & Technology Technology
Privacy concerns emerge when online users of popular user-generated content (UGC) platforms are identified through a combination of their structured data (e.g., location and name) and textual content (e.g., word choices and writing style). To overcome this problem, we introduce a Bayesian sequential synthesis methodology for organizations to share structured data adjoined to textual content. Our proposed approach enables platforms to use a single shrinkage parameter to control the privacy level of their released UGC data. Our results show that our synthesis strategy decreases the probability of identification of a user to an acceptable threshold while maintaining much of the textual content present in the structured data. Additionally, we find that the value of sharing our protected data exceeds that of sharing the unprotected structured data and textual content separately. These findings encourage UGC platforms that wish to be known for consumer privacy to protect anonymity of their online users with synthetic data.

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2 citations in Scopus

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Collaboration types
Domestic collaboration
Web of Science research areas
Computer Science, Artificial Intelligence
Engineering, Electrical & Electronic
Operations Research & Management Science
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