activity
20212026
most citedOn YouTube Search API Use in Research

6 citations · 11 across the 8 of their papers we have counts for

collaborators

9 papers

cs.SI2026

Information Pathways in Online Science Communication: The Role of Platform Actors and News Media

Alexandros Efstratiou, Giuseppe Russo, Luca Luceri

Online discussions of science involve complex interactions among experts, news media, and social media users as they interpret and disseminate scientific findings. While prior work…

cs.SI2025

Rabble-Rousers in the New King's Court: Algorithmic Effects on Account Visibility in Pre-X Twitter

Alexandros Efstratiou, Kayla Duskin, Kate Starbird +1

Algorithmic effects on social media platforms have come under recent scrutiny, with several studies reporting that right-leaning accounts tend to receive more exposure. In this pap…

cs.SI2025

The Role of Follow Networks and Twitter's Content Recommender on Partisan Skew and Rumor Exposure during the 2022 U.S. Midterm Election

Kayla Duskin, Joseph S. Schafer, Alexandros Efstratiou +2

Social media platforms shape users' experiences through the algorithmic systems they deploy. In this study, we examine to what extent Twitter's content recommender, in conjunction…

cs.IR2025★ 6 cited

On YouTube Search API Use in Research

Alexandros Efstratiou

YouTube is among the most widely-used platforms worldwide, and has seen a lot of recent academic attention. Despite its popularity and the number of studies conducted on it, much l…

cs.SI2024

Deliberate Exposure to Opposing Views and its Association with Behavior and Rewards on Political Communities

Alexandros Efstratiou

Engaging with diverse political views is important for reaching better collective decisions, however, users online tend to remain confined within ideologically homogeneous spaces.…

cs.CY2024

"Here's Your Evidence": False Consensus in Public Twitter Discussions of COVID-19 Science

Alexandros Efstratiou, Marina Efstratiou, Satrio Yudhoatmojo +2

The COVID-19 pandemic brought about an extraordinary rate of scientific papers on the topic that were discussed among the general public, although often in biased or misinformed wa…

cs.CY2022★ 2 cited

Non-Polar Opposites: Analyzing the Relationship Between Echo Chambers and Hostile Intergroup Interactions on Reddit

Alexandros Efstratiou, Jeremy Blackburn, Tristan Caulfield +3

Previous research has documented the existence of both online echo chambers and hostile intergroup interactions. In this paper, we explore the relationship between these two phenom…

cs.CY2022★ 2 cited

Adherence to Misinformation on Social Media Through Socio-Cognitive and Group-Based Processes

Alexandros Efstratiou, Emiliano De Cristofaro

Previous work suggests that people's preference for different kinds of information depends on more than just accuracy. This could happen because the messages contained within diffe…

cs.SI2021★ 1 cited

Misrepresenting Scientific Consensus on COVID-19: The Amplification of Dissenting Scientists on Twitter

Alexandros Efstratiou, Tristan Caulfield

The COVID-19 pandemic has resulted in a slew of misinformation, often described as an "infodemic". Whereas previous research has focused on the propagation of unreliable sources as…