4 papers
Who's Behind It? Annotating and Extracting Conspiratorial Actors from German Telegram Posts
Helena Mihaljević, Jolanda Beer, Mareike Lisker +1
Conspiracy theories commonly attribute important events to the actions of powerful and secretive actors. While computational research has largely focused on document-level analyses…
Bye Bye Perspective API: Lessons for Building and Governing Measurement Infrastructure
David Hartmann, Manuel Tonneau, Angelie Kraft +7
Perspective API closes at the end of 2026, removing the de facto standard for toxicity measurement and exposing researchers' dependence on a tool they did not control. Drawing on t…
Data Ethics in the Fediverse: Analyzing the Role of Instance Policies in Mastodon Research
Mareike Lisker, Helena Mihaljević
This article addresses the disconnect between the individual policy documents of Mastodon instances--many of which explicitly prohibit data collection for research purposes--and th…
Debunking with Dialogue? Exploring AI-Generated Counterspeech to Challenge Conspiracy Theories
Mareike Lisker, Christina Gottschalk, Helena Mihaljević
Counterspeech is a key strategy against harmful online content, but scaling expert-driven efforts is challenging. Large Language Models (LLMs) present a potential solution, though…