activity
20152025
most citedFame for sale: efficient detection of fake Twitter followers

460 citations · 2.4k across the 35 of their papers we have counts for

collaborators
Showing 2024Show all

6 papers · 1 filter

cs.HC2024★ 4 cited

Contextualized Counterspeech: Strategies for Adaptation, Personalization, and Evaluation

Lorenzo Cima, Alessio Miaschi, Amaury Trujillo +3

AI-generated counterspeech offers a promising and scalable strategy to curb online toxicity through direct replies that promote civil discourse. However, current counterspeech is o…

cs.CY2024★ 3 cited

Investigating the heterogenous effects of a massive content moderation intervention via Difference-in-Differences

Lorenzo Cima, Benedetta Tessa, Stefano Cresci +2

In today's online environments, users encounter harm and abuse on a daily basis. Therefore, content moderation is crucial to ensure their safety and well-being. However, the effect…

cs.CL2024★ 12 cited

Human and LLM Biases in Hate Speech Annotations: A Socio-Demographic Analysis of Annotators and Targets

Tommaso Giorgi, Lorenzo Cima, Tiziano Fagni +2

The rise of online platforms exacerbated the spread of hate speech, demanding scalable and effective detection. However, the accuracy of hate speech detection systems heavily relie…

cs.SI2024

Detection and Characterization of Coordinated Online Behavior: A Survey

Lorenzo Mannocci, Michele Mazza, Anna Monreale +2

Coordination is a fundamental aspect of life. The advent of social media has made it integral also to online human interactions, such as those that characterize thriving online com…

cs.CY2024★ 2 cited

Beyond Trial-and-Error: Predicting User Abandonment After a Moderation Intervention

Benedetta Tessa, Lorenzo Cima, Amaury Trujillo +2

Current content moderation follows a reactive, trial-and-error approach, where interventions are applied and their effects are only measured post-hoc. In contrast, we introduce a p…

cs.SI2024★ 17 cited

The Great Ban: Efficacy and Unintended Consequences of a Massive Deplatforming Operation on Reddit

Lorenzo Cima, Amaury Trujillo, Marco Avvenuti +1

In the current landscape of online abuses and harms, effective content moderation is necessary to cultivate safe and inclusive online spaces. Yet, the effectiveness of many moderat…