Roberto Ulloa

476 total citations
34 papers, 242 citations indexed

About

Roberto Ulloa is a scholar working on Sociology and Political Science, Communication and Social Psychology. According to data from OpenAlex, Roberto Ulloa has authored 34 papers receiving a total of 242 indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Sociology and Political Science, 13 papers in Communication and 5 papers in Social Psychology. Recurrent topics in Roberto Ulloa's work include Social Media and Politics (11 papers), Misinformation and Its Impacts (10 papers) and Media Influence and Politics (5 papers). Roberto Ulloa is often cited by papers focused on Social Media and Politics (11 papers), Misinformation and Its Impacts (10 papers) and Media Influence and Politics (5 papers). Roberto Ulloa collaborates with scholars based in Germany, Switzerland and Austria. Roberto Ulloa's co-authors include Mykola Makhortykh, Aleksandra Urman, Celina Kacperski, Juhi Kulshrestha, Sonja Klingert, Florian Kutzner, Fernando Sancho, Andreas Spitz, Frank Mangold and Peter Selb and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and Energy Policy.

In The Last Decade

Roberto Ulloa

30 papers receiving 230 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Roberto Ulloa Germany 10 127 79 51 30 23 34 242
Himanshu Zade United States 7 131 1.0× 59 0.7× 39 0.8× 27 0.9× 22 1.0× 14 258
Sucheta Ghoshal United States 7 149 1.2× 131 1.7× 151 3.0× 62 2.1× 30 1.3× 15 340
Parisa Roshan United States 10 109 0.9× 39 0.5× 42 0.8× 53 1.8× 11 0.5× 20 244
Gabriele Meiselwitz United States 10 70 0.6× 32 0.4× 28 0.5× 52 1.7× 8 0.3× 28 220
Chuan Yu United States 4 327 2.6× 183 2.3× 103 2.0× 70 2.3× 8 0.3× 10 417
Samuel Carton United States 11 64 0.5× 61 0.8× 225 4.4× 44 1.5× 17 0.7× 15 351
Hendrik Heuer Germany 9 88 0.7× 47 0.6× 63 1.2× 18 0.6× 7 0.3× 19 169
Marc Rotenberg United States 7 189 1.5× 32 0.4× 62 1.2× 58 1.9× 5 0.2× 26 283
Manoel Horta Ribeiro Switzerland 12 154 1.2× 132 1.7× 246 4.8× 89 3.0× 33 1.4× 39 440
Marc Tuters Netherlands 7 163 1.3× 154 1.9× 70 1.4× 8 0.3× 30 1.3× 33 331

Countries citing papers authored by Roberto Ulloa

Since Specialization
Citations

This map shows the geographic impact of Roberto Ulloa's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Roberto Ulloa with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Roberto Ulloa more than expected).

Fields of papers citing papers by Roberto Ulloa

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Roberto Ulloa. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Roberto Ulloa. The network helps show where Roberto Ulloa may publish in the future.

Co-authorship network of co-authors of Roberto Ulloa

This figure shows the co-authorship network connecting the top 25 collaborators of Roberto Ulloa. A scholar is included among the top collaborators of Roberto Ulloa based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Roberto Ulloa. Roberto Ulloa is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Kacperski, Celina, et al.. (2025). Enhancing autonomous vehicle acceptance with age and education sensitive simulation interventions: an experimental trial. Transportation Research Part A Policy and Practice. 194. 104415–104415.
2.
Kacperski, Celina, Roberto Ulloa, Denis Bonnay, et al.. (2025). Characteristics of ChatGPT users from Germany: Implications for the digital divide from web tracking data. PLoS ONE. 20(1). e0309047–e0309047. 5 indexed citations
3.
Ulloa, Roberto, et al.. (2025). Beyond time delays: how web scraping distorts measures of online news consumption. Communication Methods and Measures. 19(3). 179–200. 1 indexed citations
4.
5.
Ulloa, Roberto, et al.. (2024). Predicting political attitudes from web tracking data: a machine learning approach. Journal of Information Technology & Politics. 21(4). 564–577. 3 indexed citations
6.
Spitz, Andreas, et al.. (2024). Assessing In-context Learning and Fine-tuning for Topic Classification of German Web Data. 238–252. 1 indexed citations
7.
Urman, Aleksandra, et al.. (2023). Constants and Variables: How Does the Visual Representation of the Holocaust by AI Change Over Time. SHILAP Revista de lepidopterología. 1(2). 365–371. 1 indexed citations
8.
Makhortykh, Mykola, et al.. (2023). Shall androids dream of genocides? How generative AI can change the future of memorialization of mass atrocities. SHILAP Revista de lepidopterología. 3(1). 17 indexed citations
9.
Ulloa, Roberto & Celina Kacperski. (2023). Search engine effects on news consumption: Ranking and representativeness outweigh familiarity in news selection. New Media & Society. 26(11). 6552–6578. 7 indexed citations
10.
Makhortykh, Mykola, et al.. (2023). AI and Archives: How can Technology Help Preserve Holocaust Heritage Under the Risk of Disappearance?. SHILAP Revista de lepidopterología. 1(2). 357–363. 6 indexed citations
11.
Makhortykh, Mykola, Aleksandra Urman, & Roberto Ulloa. (2022). Memory, counter-memory and denialism: How search engines circulate information about the Holodomor-related memory wars. Memory Studies. 15(6). 1330–1345. 10 indexed citations
12.
Urman, Aleksandra, Mykola Makhortykh, & Roberto Ulloa. (2022). The Matter of Chance: Auditing Web Search Results Related to the 2020 U.S. Presidential Primary Elections Across Six Search Engines. Zurich Open Repository and Archive (University of Zurich). 3 indexed citations
13.
Urman, Aleksandra, Mykola Makhortykh, Roberto Ulloa, & Juhi Kulshrestha. (2022). Where the earth is flat and 9/11 is an inside job: A comparative algorithm audit of conspiratorial information in web search results. Telematics and Informatics. 72. 101860–101860. 22 indexed citations
14.
Ulloa, Roberto, et al.. (2022). Representativeness and face-ism: Gender bias in image search. New Media & Society. 26(6). 3541–3567. 9 indexed citations
15.
Ulloa, Roberto, et al.. (2021). “I updated the <ref>”: The evolution of references in the English Wikipedia and the implications for altmetrics. Quantitative Science Studies. 3(1). 147–173. 5 indexed citations
16.
Makhortykh, Mykola, Aleksandra Urman, & Roberto Ulloa. (2021). Hey, Google, is it what the Holocaust looked like?. First Monday. 17 indexed citations
17.
Makhortykh, Mykola, Aleksandra Urman, & Roberto Ulloa. (2020). How search engines disseminate information about COVID-19 and why they should do better. SHILAP Revista de lepidopterología. 42 indexed citations
18.
Ulloa, Roberto & Tom Froese. (2016). Nobility-targeting raids among the Classic Maya: Cooperation in scale-free networks persists under tournament attack when population size fluctuates. Social Science Open Access Repository (GESIS – Leibniz Institute for the Social Sciences). 472–479. 1 indexed citations
19.
Ulloa, Roberto, Celina Kacperski, & Fernando Sancho. (2016). Institutions and Cultural Diversity: Effects of Democratic and Propaganda Processes on Local Convergence and Global Diversity. PLoS ONE. 11(4). e0153334–e0153334. 6 indexed citations
20.
Ulloa, Roberto, et al.. (1983). [Orthodontics and pediatric dentistry in relation to public health].. PubMed. 3(2). 63–70. 1 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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