10 papers
Conditional Publics: Shared Events and Divergent Meanings in the European Twitter Debate on the Ukraine War
Corrado Monti, Arthur Capozzi, Yelena Mejova +1
How do European publics debate a geopolitical crisis on social media, and do they inhabit a shared informational reality? We analyze over 38 million geolocated tweets from 20 Europ…
A Large-Language-Model Framework for Automated Humanitarian Situation Reporting
Ivan Decostanzi, Yelena Mejova, Kyriaki Kalimeri
Timely and accurate situational reports are essential for humanitarian decision-making, yet current workflows remain largely manual, resource intensive, and inconsistent. We presen…
Language-Agnostic Modeling of Source Reliability on Wikipedia
Jacopo D'Ignazi, Andreas Kaltenbrunner, Yelena Mejova +4
Over the last few years, verifying the credibility of information sources has become a fundamental need to combat disinformation. Here, we present a language-agnostic model designe…
Vaccine Hesitancy on YouTube: a Competition between Health and Politics
Yelena Mejova, Michele Tizzani
YouTube has rapidly emerged as a predominant platform for content consumption, effectively displacing conventional media such as television and news outlets. A part of the enormous…
Google Search Advertising after Dobbs v. Jackson
Yelena Mejova, Ronald E. Robertson, Catherine A. Gimbrone +1
Search engines have become the gateway to information, products, and services, including those concerning healthcare. Access to reproductive health has been especially complicated…
Too Little, Too Late: Moderation of Misinformation around the Russo-Ukrainian Conflict
Gautam Kishore Shahi, Yelena Mejova
In this study, we examine the role of Twitter as a first line of defense against misinformation by tracking the public engagement with, and the platforms response to, 500 tweets co…