Cited by 184Spam and Phishing DetectionMisinformation and Its ImpactsComputational and Text Analysis Methods

The DOI matches its Crossref record; 47 of the 49 references it cites were found in a registry or an index.

The False positive problem of automatic bot detection in social science research

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Abstract

The identification of bots is an important and complicated task. The bot classifier "Botometer" was successfully introduced as a way to estimate the number of bots in a given list of accounts and, as a consequence, has been frequently used in academic publications. Given its relevance for academic research and our understanding of the presence of automated accounts in any given Twitter discourse, we are interested in Botometer's diagnostic ability over time. To do so, we collected the Botometer scores for five datasets (three verified as bots, two verified as human; n = 4,134) in two languages (English/German) over three months. We show that the Botometer scores are imprecise when it comes to estimating bots; especially in a different language. We further show in an analysis of Botometer scores over time that Botometer's thresholds, even when used very conservatively, are prone to variance, which, in turn, will lead to false negatives (i.e., bots being classified as humans) and false positives (i.e., humans being classified as bots). This has immediate consequences for academic research as most studies in social science using the tool will unknowingly count a high number of human users as bots and vice versa. We conclude our study with a discussion about how computational social scientists should evaluate machine learning systems that are developed for identifying bots.

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  1. Fernández DM, Graziotin D, Wagner S, Seibold H. Open Science in Software Engineering; 2019. https://arxiv.org/abs/1904.06499. · arXiv

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Metadata

Authors
Rauchfleisch, A., & Kaiser, J.
Affiliations
  • National Taiwan University (TW)
  • Harvard University (US)
Corresponding author
Rauchfleisch, Adrian
Venue
PLOS ONE
Published
2020-10-22
Volume
15
Issue
10
Pages
e0241045
ISSN
1932-6203 (ISSN-L)
OpenAlex
W3014935876
Cited by
184
References
49
Citations by year
2026: 10 · 2025: 23 · 2024: 39 · 2023: 31 · 2022: 47 · 2021: 27 · 2020: 7
FWCI
26.37
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Digital Access to Scholarship at Harvard (DASH) (Harvard University) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Ministry of Science and Technology, Taiwan (108-2410-H-002 -007 -MY2)
Topics
  • Physical Sciences › Computer Science › Information Systems › Spam and Phishing Detection
  • Social Sciences › Sociology and Political Science › Misinformation and Its Impacts
  • Social Sciences › General Social Sciences › Computational and Text Analysis Methods
Keywords
bot detection, Botometer, false positives, false-negative results, Twitter, language influence, computational social science
MeSH terms
Machine Learning, Humans, Politics, Research, Social Sciences, Social Networking, Social Media

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