Gabriele Lenzini

schoolUniversity of Luxembourgbar_chart#1587 Global Rank

Total Papers

HCI Rank

#1587

Research Areas

Years Active

Recent Publications

Request a Note: How the Request Function Shapes X's Community Notes System

X's Community Notes is a crowdsourced fact-checking system. To improve its scalability, X introduced ``Request Community Note'' feature, enabling users to solicit fact-checks from contributors on specific posts. Yet, its implications for the system---what gets checked, by whom, and with what quality---remain unclear.…

CSCW '25CorrespondingMisinformation, News, and Fact-Checking

From News Source Sharers to Post Viewers: How Topic Diversity and Conspiracy Theories Shape Engagement With Misinformation During a Health Crisis

Online engagement with misinformation threatens societal well-being, particularly during health crises when susceptibility to misinformation is heightened in a multi-topic context. Here, we focus on the COVID-19 pandemic and address a critical gap in understanding engagement with multi-topic misinformation on social m…

CHI '253rd AuthorMisinformation & Fact-Checking +1

Community Fact-Checks Trigger Moral Outrage in Replies to Misleading Posts on Social Media

Displaying community fact-checks is a promising approach to reduce engagement with misinformation on social media. However, how users respond to misleading content emotionally after community fact-checks are displayed on posts is unclear. Here, we employ quasi-experimental methods to causally analyze changes in sentim…

CSCW '24CorrespondingSession 2e: Echo Chambers and Fake News in Focus

Did the Roll-Out of Community Notes Reduce Engagement With Misinformation on X/Twitter?

Developing interventions that successfully reduce engagement with misinformation on social media is challenging. One intervention that has recently gained great attention is X/Twitter's Community Notes (previously known as "Birdwatch"). Community Notes is a crowdsourced fact-checking approach that allows users to writ…

DIS '242nd AuthorContent Moderation & Platform Governance +1

``Who Knows? Maybe it Really Works'': Analysing Users' Perceptions of Health Misinformation on Social Media

Health misinformation, defined as health-oriented information that contradicts empirically supported scientific findings, has become a significant concern on social media platforms. In response, platforms have implemented diverse design solutions to block such misinformation or alert users about its potential inaccura…

CHI '243rd AuthorPrivacy by Design & User Control +1

The Effects of Group Discussion and Role-playing Training on Self-efficacy, Support-seeking, and Reporting Phishing Emails: Evidence from a Mixed-design Experiment

Organizations rely on phishing interventions to enhance employees' vigilance and safe responses to phishing emails that bypass technical solutions. While various resources are available to counteract phishing, studies emphasize the need for interactive and practical training approaches. To investigate the effectivenes…

DIS '21CorrespondingPrivacy by Design & User Control +1

"I am Definitely Manipulated, Even When I am Aware of it. It’s Ridiculous!" - Dark Patterns from the End-User Perspective

Online services pervasively employ manipulative designs (i.e., dark patterns) to influence users to purchase goods and subscriptions, spend more time on-site, or mindlessly accept the harvesting of their personal data. To protect users from the lure of such designs, we asked: are users aware of the presence of dark pa…

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