• Publications
  • Influence
Do Altmetrics Work? Twitter and Ten Other Social Web Services
TLDR
Comparisons between citations and metric values for articles published at different times, even within the same year, can remove or reverse this association and so publishers and scientometricians should consider the effect of time when using altmetrics to rank articles.
The Oligopoly of Academic Publishers in the Digital Era
TLDR
Analysis of 45 million documents indexed in the Web of Science over the period 1973-2013 shows that in both natural and medical sciences (NMS) and social sciences and humanities, Reed-Elsevier, Wiley-Blackwell, Springer, and Taylor & Francis increased their share of the published output, especially since the advent of the digital era (mid-1990s).
Tweeting biomedicine: An analysis of tweets and citations in the biomedical literature
TLDR
This article aims to provide systematic evidence about how often Twitter is used to disseminate information about journal articles in the biomedical sciences by evaluating the degree to which certain journals, disciplines, and specialties were represented on Twitter and how far tweets correlate with citation impact.
Self-Selected or Mandated, Open Access Increases Citation Impact for Higher Quality Research
TLDR
The OA advantage is greater for the more citable articles, not because of a quality bias from authors self-selecting what to make OA, but because ofA quality advantage, from users self- selecting what to use and cite, freed by OA from the constraints of selective accessibility to subscribers only.
Characterizing Social Media Metrics of Scholarly Papers: The Effect of Document Properties and Collaboration Patterns
TLDR
Findings suggest that factors driving social media and citations are different and social media metrics cannot actually be seen as alternatives to citations; at most, they may function as complements to other type of indicators.
Scholarly use of social media and altmetrics: A review of the literature
TLDR
This review provides an extensive account of the state of the art in both scholarly use of social media and altmetrics, reviewing the various functions these platforms have in the scholarly communication process and the factors that affect this use.
Benchmarking scientific output in the social sciences and humanities: The limits of existing databases
TLDR
There is a 20 to 25% overrepresentation of English-language journals in Thomson Scientific's databases compared to the list of journals presented in Ulrich, which means Thomson Scientific databases cannot be used in isolation to benchmark the output of countries in the SSH.
The state of OA: a large-scale analysis of the prevalence and impact of Open Access articles.
TLDR
The citation impact of OA articles is examined, corroborating the so-called open-access citation advantage: accounting for age and discipline, OAarticles receive 18% more citations than average, an effect driven primarily by Green and Hybrid OA.
Comparing Bibliometric Statistics Obtained from the Web of Science and Scopus
TLDR
Using macrolevel bibliometric indicators to compare results obtained from the WoS and Scopus provides evidence that indicators of scientific production and citations at the country level are stable and largely independent of the database.
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