Fake news on Twitter during the 2016 U.S. presidential election

Paper by Nir Grinberg, Kenneth Joseph, Lisa Friedland, Briony Swire-Thompson, and David Lazer

The spread of fake news on social media became a public concern in the United States after the 2016 presidential election. We examined exposure to and sharing of fake news by registered voters on Twitter and found that engagement with fake news sources was extremely concentrated. Only 1% of individuals accounted for 80% of fake news source exposures, and 0.1% accounted for nearly 80% of fake news sources shared. Individuals most likely to engage with fake news sources were conservative leaning, older, and highly engaged with political news. A cluster of fake news sources shared overlapping audiences on the extreme right, but for people across the political spectrum, most political news exposure still came from mainstream media outlets.

Link: http://science.sciencemag.org/content/363/6425/374

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My Dream Team paper accepted at CHI 2019

A My Dream Team paper titled “Who Would You Like to Work With? Use of Individual Characteristics and Social Networks in Team Formation Systems,” was accepted at the ACM Conference on Human Factors in Computing Systems Proceedings (CHI).

In this paper, we conducted a field study where 530 participants used a team formation system to assemble project teams. We describe how users’ traits and social networks influence their teammate searches, teammate choices, and team composition. Our results show that (a) what users initially search for differs from what they finally choose: initially they search for experts and sociable users, but they are ultimately more likely to choose their prior social connections; (b) users’ decisions lead to non- diverse and segregated teams, where most of the expertise and social capital are concentrated in a few teams.

Citation: Diego Gómez-Zará, Matthew Paras, Marlon Twyman, Jacqueline N. Lane, Leslie A. DeChurch, and Noshir S. Contractor. 2019. Who Would You Like to Work With?: Use of Individual Characteristics and Social Networks in Team Formation Systems. In CHI Conference on Human Factors in Computing Systems Proceedings (CHI 2019), May 4–9, 2019, Glasgow, Scotland Uk. ACM, New York, NY, USA, 15 pages. https://doi.org/10.1145/3290605.3300889

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Gómez-Zará presents at NetSci-X 2019 in Santiago

Diego Gómez-Zará presents, “Using relational event modeling for understanding team formation mechanisms in teams assembled online” at the central winter conference on Network Science, NetSci-X, in Santiago, Chile. This conference brings together leading researchers and innovators to connect, meet and establish interdisciplinary channels for collaboration. From biological and environmental networks, to social, technological and economic networks, NetSci-X 2019 links the Chilean spirit with the fresh outlook of Network Science.

Citation:

Diego Gómez-Zará, Matthew Paras, Aaron Schecter, Leslie A. DeChurch and Noshir S. Contractor. (2019, January). Using relational event modeling for understanding team formation mechanisms in teams assembled online. Paper presented at the International School and Conference on Network Science (NetSci-X), Santiago, Chile. 

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