An Altmetric As an Indicator of a Publication’s Scientific Impact
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The results of an empirical pilot project focused on the association between classical bibliometrics—publication, citation index, and journal cited half-life—and an altmetric—the assessment of an article’s impact—are discussed. The analysis included an array of 37 200 domestic articles indexed in SCI-E in 2015. Two altmetrics are used: usage counts for the last 180 days, U1, and usage counts since February 1, 2013, U2. A significant Kendall rank correlation has been identified between citation indices and article-level metrics. A stronger correlation has been observed for long usage counts, U2. The relationship between usage metrics and traditional journal-level metrics (cited half-life) has been analyzed. A rather weak negative correlation between cited half-life and U1 (U2) has been revealed, which is described by an inverse logarithmic dependence. In the authors’ opinion, altmetrics should not be opposed to classical bibliometrics; they should be used as additional metrics to assess an article’s impact.
Keywords:altmetrics indicators citation index article usage indicator publications journal cited half-life journal Kendall rank correlation
This article was supported in part by the Russian Foundation for Basic Research, project nos. 17-02-00157 “Comparative Analysis of the Dynamics of Domestic and Global Natural Scientific Priorities over the Entire Post-Soviet Period, Including Assessment of the Russian Diaspora’s Participation in the Creation of Modern Emerging Technologies for Use in the Domestic Economy (Web of Science)” and 17-02-00078 “Documentary Scientific Communications, Their Role in the Transfer, Dissemination, and Preservation of Domestic Research Results in Social Sciences and the Humanities as Compared to the BRICS and EU Countries, the United States, and Canada (according to the Web of Science over 1986–2015) and the Assessment of the Impact of These Results on Decisions Made in the Field of Socioeconomic Policy” and in part by the RAS Presidium basic research program “Scientific Fundamentals of the Development of the Russian Scientific Innovative Complex in the Context of Global Transformations” (coordinator V.V. Ivanov).
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