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researcher

R. Ulloa

13 papers hereh-index 14445 citations37 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • first author3
  • middle author2
  • last author7

Across the 12 of 13 papers where every author was matched, so the position is known.

fields
  • cs.CY7
  • cs.IR5
  • physics.soc-ph1

identity via Semantic Scholar / OpenAlex

activity
20202025
most citedThe Matter of Chance: Auditing Web Search Results Related to the 2020 U.S. Presidential Primary Elections Across Six Search Engines

47 citations · 124 across the 12 of their papers we have counts for

collaborators
Showing 2022Show all

3 papers · 1 filter

cs.CY2022

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…

cs.IR2022★ 2 cited

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…

cs.CY2022★ 17 cited

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…

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