21 citations · 26 across the 7 of their papers we have counts for
7 papers
A Multilingual Dataset of COVID-19 Vaccination Attitudes on Twitter
Ninghan Chen, Xihui Chen, Jun Pang
Vaccine hesitancy is considered as one main cause of the stagnant uptake ratio of COVID-19 vaccines in Europe and the US where vaccines are sufficiently supplied. Fast and accurate…
"Double vaccinated, 5G boosted!": Learning Attitudes towards COVID-19 Vaccination from Social Media
Ninghan Chen, Xihui Chen, Zhiqiang Zhong +1
To address the vaccine hesitancy which impairs the efforts of the COVID-19 vaccination campaign, it is imperative to understand public vaccination attitudes and timely grasp their…
The Burden of Being a Bridge: Analysing Subjective Well-Being of Twitter Users during the COVID-19 Pandemic
Ninghan Chen, Xihui Chen, Zhiqiang Zhong +1
The outbreak of the COVID-19 pandemic triggers infodemic over online social media, which significantly impacts public health around the world, both physically and psychologically.…
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…
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…
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…
A Group Signature Based Electronic Toll Pricing System
Xihui Chen, Gabriele Lenzini, Sjouke Mauw +1
With the prevalence and development of GNSS technologies, location-based vehicle services (LBVS) have experienced a rapid growth in recent years. However, location is a sensitive a…