Alexandros Efstratiou

Postdoctoral Scholar

aefstra@uw.edu

Website

Specializations

Polarization and Social Cognition
Misinformation in Social Media
Computational Social Science

Research Areas

Biography

Alexandros Efstratiou is a Postdoctoral Scholar at the University of Washington Information School and Center for an Informed Public (CIP). His work focuses on how polarization and naturally arising social groups influence the flow and acceptability of information in online social networks.

Efstratiou has an interdisciplinary background in Psychology and Computer Science. His research methods draw from various fields like social psychology, behavioral science, and computational social science.

Awards

Kurt Lewin Prize - Durham University, 2020
British Psychological Society Award - British Psychological Society, 2019
UEA School of Psychology Award - University of East Anglia, 2019

Publications and Contributions

Conference Paper

"Here’s Your Evidence”: False Consensus in Public Twitter Discussions of COVID-19 Science (2024)
Proceedings of the ACM on Human-Computer Interaction (CSCW ’24), 8(CSCW2) Authors: Alexandros Efstratiou, Marina Efstratiou, Satrio Yudhoatmojo, Jeremy Blackburn, Emiliano De Cristofaro
Conference Paper

Deliberate Exposure to Opposing Views and Its Association with Behavior and Rewards on Political Communities (2024)
Proceedings of the ACM Web Conference 2024 (WWW ’24), pp. 2347 - 2358 Author: Alexandros Efstratiou
Conference Paper

Non-polar Opposites: Analyzing the Relationship between Echo Chambers and Hostile Intergroup Interactions on Reddit (2023)
Proceedings of the 17th International AAAI Conference on Web and Social Media (ICWSM ’23). Authors: Alexandros Efstratiou, Jeremy Blackburn, Tristan Caulfield, Gianluca Stringhini, Savvas Zannettou, Emiliano De Cristofaro
Conference Paper

Adherence to Misinformation on Social Media Through Socio- Cognitive and Group-Based Processes (2022)
Proceedings of the ACM on Human-Computer Interaction (CSCW ’22), 6(CSCW2) Authors: Alexandros Efstratiou, Emiliano De Cristofaro
Journal Article, Academic Journal

The Impact of Risk Perceptions and Belief in Conspiracy Theories on COVID-19 Pandemic-Related Behaviours (2022)
PLOS One, 17(2) Authors: Jack P. Hughes, Alexandros Efstratiou, Sara R. Comer, Lilli A. Baxter, Milica Vasiljevic, Ana C. Leite

Presentations

“Here’s your evidence”: False consensus in public Twitter discussions of COVID-19 science (2024)
CSCW 2024 - San José, Costa Rica
From tribes to tropes: Network polarisation and false consensus around COVID-19 science (2024)
Oxford Internet Institute 2024 - Virtual
Panel on Misrepresenting Science (2024)
Stanford University Scientists Speak Up (2024) - Virtual
Uncovering a false consensus in public Twitter discussions of COVID-19 science (2024)
UCR LOGOS Group 2024 - Virtual
What I see is all that’s real: The dynamics of polarization and misinformation on social media platforms (2024)
UCL Information Security Research Group 2024 - London, England
Non-polar opposites: An examination of the interplay between echo chambers and hostile intergroup interactions online (2023)
GESIS 2023 - Virtual
Non-polar opposites: Analyzing the relationship between echo chambers and hostile intergroup interactions on Reddit (2023)
ICWSM 2023 - Limassol, Cyprus
Adherence to misinformation on social media through socio-cognitive and group-based processes (2022)
CSCW 2022 - Virtual
The leadership oversight bias in justice and hypocrisy evaluations of organisational diversity practices (2021)
Academy of Management Annual Meeting 2021 - Virtual