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cs.SI2020
From #Jobsearch to #Mask: Improving COVID-19 Cascade Prediction with Spillover Effects
Ninghan Chen, Xihui Chen, Zhiqiang Zhong +1
An information outbreak occurs on social media along with the COVID-19 pandemic and leads to infodemic. Predicting the popularity of online content, known as cascade prediction, al…
cs.SI2019
Active Re-identification Attacks on Periodically Released Dynamic Social Graphs
Xihui Chen, Ema Këpuska, Sjouke Mauw +1
Active re-identification attacks pose a serious threat to privacy-preserving social graph publication. Active attackers create fake accounts to build structural patterns in social…
cs.SI2019
Publishing Community-Preserving Attributed Social Graphs with a Differential Privacy Guarantee
Xihui Chen, Sjouke Mauw, Yunior Ramírez-Cruz
We present a novel method for publishing differentially private synthetic attributed graphs. Unlike preceding approaches, our method is able to preserve the community structure of…