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Brittany I. Davidson

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Sentiment Analysis in Digital Spaces: An Overview of Reviews

Oct 30, 2023
Laura E. M. Ayravainen, Joanne Hinds, Brittany I. Davidson

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Sentiment analysis (SA) is commonly applied to digital textual data, revealing insight into opinions and feelings. Many systematic reviews have summarized existing work, but often overlook discussions of validity and scientific practices. Here, we present an overview of reviews, synthesizing 38 systematic reviews, containing 2,275 primary studies. We devise a bespoke quality assessment framework designed to assess the rigor and quality of systematic review methodologies and reporting standards. Our findings show diverse applications and methods, limited reporting rigor, and challenges over time. We discuss how future research and practitioners can address these issues and highlight their importance across numerous applications.

* 44 pages, 4 figures, 6 tables, 3 appendices 
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The Politics of Language Choice: How the Russian-Ukrainian War Influences Ukrainians' Language Use on Twitter

May 04, 2023
Daniel Racek, Brittany I. Davidson, Paul W. Thurner, Göran Kauermann

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The use of language is innately political and often a vehicle of cultural identity as well as the basis for nation building. Here, we examine language choice and tweeting activity of Ukrainian citizens based on more than 4 million geo-tagged tweets from over 62,000 users before and during the Russian-Ukrainian War, from January 2020 to October 2022. Using statistical models, we disentangle sample effects, arising from the in- and outflux of users on Twitter, from behavioural effects, arising from behavioural changes of the users. We observe a steady shift from the Russian language towards the Ukrainian language already before the war, which drastically speeds up with its outbreak. We attribute these shifts in large part to users' behavioural changes. Notably, we find that many Russian-tweeting users perform a hard-switch to Ukrainian as a result of the war.

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