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Roberto Ulloa
Roberto Ulloa
University of Konstanz
Verified email at gesis.org - Homepage
Title
Cited by
Cited by
Year
Detecting race and gender bias in visual representation of AI on web search engines
M Makhortykh, A Urman, R Ulloa
International workshop on algorithmic bias in search and recommendation, 36-50, 2021
862021
How search engines disseminate information about COVID-19 and why they should do better
M Makhortykh, A Urman, R Ulloa
Harvard Kennedy School Misinformation Review 1 (3), 2020
862020
The matter of chance: Auditing web search results related to the 2020 US presidential primary elections across six search engines
A Urman, M Makhortykh, R Ulloa
Social science computer review 40 (5), 1323-1339, 2022
792022
Where the earth is flat and 9/11 is an inside job: A comparative algorithm audit of conspiratorial information in web search results
A Urman, M Makhortykh, R Ulloa, J Kulshrestha
Telematics and informatics 72, 101860, 2022
472022
Impact of incentives for greener battery electric vehicle charging: A field experiment
C Kacperski, R Ulloa, S Klingert, B Kirpes, F Kutzner
442022
Hey, Google, is it what the Holocaust looked like? Auditing algorithmic curation of visual historical content on Web search engines
M Makhortykh, A Urman, R Ulloa
First Monday 26 (10), 2021
442021
Shall androids dream of genocides? How generative AI can change the future of memorialization of mass atrocities
M Makhortykh, EM Zucker, DJ Simon, D Bultmann, R Ulloa
Discover Artificial Intelligence 3 (1), 28, 2023
422023
Scaling up search engine audits: practical insights for algorithm auditing
R Ulloa, M Makhortykh, A Urman
Journal of information science 50 (2), 404-419, 2024
39*2024
Characteristics of ChatGPT users from Germany: Implications for the digital divide from web tracking data
C Kacperski, R Ulloa, D Bonnay, J Kulshrestha, P Selb, A Spitz
PloS one 20 (1), e0309047, 2025
36*2025
To track or not to track: examining perceptions of online tracking for information behavior research
M Makhortykh, A Urman, T Gil-Lopez, R Ulloa
Internet Research 32 (7), 260-279, 2022
322022
Representativeness and face-ism: Gender bias in image search
R Ulloa, AC Richter, M Makhortykh, A Urman, CS Kacperski
new media & society 26 (6), 3541-3567, 2024
282024
Auditing the representation of migrants in image web search results
A Urman, M Makhortykh, R Ulloa
Humanities and Social Sciences Communications 9 (1), 1-16, 2022
272022
Memory, counter-memory and denialism: How search engines circulate information about the Holodomor-related memory wars
M Makhortykh, A Urman, R Ulloa
Memory studies 15 (6), 1330-1345, 2022
232022
Institutions and cultural diversity: Effects of democratic and propaganda processes on local convergence and global diversity
R Ulloa, C Kacperski, F Sancho
PLoS one 11 (4), e0153334, 2016
232016
“I updated the”: The evolution of references in the English Wikipedia and the implications for altmetrics
O Zagovora, R Ulloa, K Weller, F Flöck
Quantitative Science Studies 3 (1), 147-173, 2022
212022
Auditing source diversity bias in video search results using virtual agents
A Urman, M Makhortykh, R Ulloa
Companion proceedings of the web conference 2021, 232-236, 2021
212021
Search engine effects on news consumption: Ranking and representativeness outweigh familiarity in news selection
R Ulloa, C Kacperski Sylwia
New Media & Society 2023 (0), https://doi.org/10.1177/14614448231154, 2023
172023
Kivy: interactive applications in python
R Ulloa
Packt Publishing, 2013
172013
Improving the quality of individual-level online information tracking: Challenges of existing approaches and introduction of a new content-and long-tail sensitive academic solution
S Adam, M Makhortykh, M Maier, V Aigenseer, A Urman, TG Lopez, ...
arXiv preprint arXiv:2403.02931, 2024
13*2024
Facebook as an avenue to news: A comparison and validation of approaches to identify Facebook referrals
F Schmidt, F Mangold, S Stier, R Ulloa
Political Communication 41 (6), 921-943, 2024
112024
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Articles 1–20