47 citations · 124 across the 12 of their papers we have counts for
13 papers
From prosthetic memory to prosthetic denial: Auditing whether large language models are prone to mass atrocity denialism
Roberto Ulloa, Eve M. Zucker, Daniel Bultmann +2
The proliferation of large language models (LLMs) can influence how historical narratives are disseminated and perceived. This study explores the implications of LLMs' responses on…
Googling the Big Lie: Search Engines, News Media, and the US 2020 Election Conspiracy
Ernesto de León, Mykola Makhortykh, Aleksandra Urman +1
The conspiracy theory that the US 2020 presidential election was fraudulent - the Big Lie - remained a prominent part of the media agenda months after the election. Whether and how…
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
Silke Adam, Mykola Makhortykh, Michaela Maier +6
This article evaluates the quality of data collection in individual-level desktop information tracking used in the social sciences and shows that the existing approaches face sampl…
Shall androids dream of genocides? How generative AI can change the future of memorialization of mass atrocities
Mykola Makhortykh, Eve M. Zucker, David J. Simon +2
The memorialization of mass atrocities such as war crimes and genocides facilitates the remembrance of past suffering, honors those who resisted the perpetrators, and helps prevent…
Novelty in news search: a longitudinal study of the 2020 US elections
Roberto Ulloa, Mykola Makhortykh, Aleksandra Urman +1
The 2020 US elections news coverage was extensive, with new pieces of information generated rapidly. This evolving scenario presented an opportunity to study the performance of sea…
This is what a pandemic looks like: Visual framing of COVID-19 on search engines
Mykola Makhortykh, Aleksandra Urman, Roberto Ulloa
In today's high-choice media environment, search engines play an integral role in informing individuals and societies about the latest events. The importance of search algorithms i…
Search engine effects on news consumption: ranking and representativeness outweigh familiarity in news selection
Roberto Ulloa, Celina Sylwia Kacperski
Online platforms have transformed the way in which individuals access and interact with news, with a high degree of trust particularly placed in search engine results. We use web t…
Where the Earth is flat and 9/11 is an inside job: A comparative algorithm audit of conspiratorial information in web search results
Aleksandra Urman, Mykola Makhortykh, Roberto Ulloa +1
Web search engines are important online information intermediaries that are frequently used and highly trusted by the public despite multiple evidence of their outputs being subjec…
Detecting race and gender bias in visual representation of AI on web search engines
Mykola Makhortykh, Aleksandra Urman, Roberto Ulloa
Web search engines influence perception of social reality by filtering and ranking information. However, their outputs are often subjected to bias that can lead to skewed represent…
Auditing Source Diversity Bias in Video Search Results Using Virtual Agents
Aleksandra Urman, Mykola Makhortykh, Roberto Ulloa
We audit the presence of domain-level source diversity bias in video search results. Using a virtual agent-based approach, we compare outputs of four Western and one non-Western se…
The Matter of Chance: Auditing Web Search Results Related to the 2020 U.S. Presidential Primary Elections Across Six Search Engines
Aleksandra Urman, Mykola Makhortykh, Roberto Ulloa
We examine how six search engines filter and rank information in relation to the queries on the U.S. 2020 presidential primary elections under the default - that is nonpersonalized…
'I Updated the <ref>': The Evolution of References in the English Wikipedia and the Implications for Altmetrics
Olga Zagovora, Roberto Ulloa, Katrin Weller +1
With this work, we present a publicly available dataset of the history of all the references (more than 55 million) ever used in the English Wikipedia until June 2019. We have appl…
A Simulation of the Resilience of Cultural Diversity in the Face of Large-Scale Events
R. Ulloa, C. Kacperski
Resilience and vulnerability of societies to large-scale events such as wars, climate catastrophes, immigration waves, and institutional collapses is not well-understood. Some soci…