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Openness trends in Brazilian citation data: factors related to the use of DOIs

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Abstract

Digital object identifiers (DOIs) are important metadata elements for indexing and interoperability, as well as for bibliometric studies in times of openness. This study analyses the use of DOIs in the cited references of articles by authors from Brazilian institutions, their possible influencing factors and differences among areas of knowledge. It measures the extent to which the citation datasets are open for reuse by others in terms of the availability of DOIs. 226,491 articles were retrieved from Web of Science (2012–2016), making a total of 8,707,120 cited references, 68% of which include DOIs. The results showed that the hard sciences have higher percentages of DOIs in their cited references. The factor type of collaboration showed higher percentages when there is international collaboration, being significantly different from the other categories. However, when the analysis was conducted inside the areas, the international collaboration was found to be different particularly in the soft sciences and a couple of other areas. The articles with DOI attributed, as well as those with mention of research funding, had a significantly higher percentage, even in the interaction with the areas of knowledge. Among the open access routes the green routes showed the highest percentages, followed by golden (DOAJ and other) and Bronze, but green routes articles proved to be not significantly different from those not openly accessible. Finally, the principal collaborating countries also showed the greatest influence on the DOI attribution, with the exception of Peru and South Africa. Our findings provide evidence that studies on the availability and usability of DOIs can assist researchers, by underlining the importance of making greater use of this persistent identifier, as well as to provide consistency to citation analysis.

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Notes

  1. Retrieved from https://help.incites.clarivate.com/incitesLiveESI/ESIGroup/overviewESI/esiJournalsList.html.

  2. “Open access status is provided across the Web of Science platform as a result of a partnership with Impactstory, a not-for-profit organization that recently launched a knowledgebase of Open Access (OA) content. This knowledge base makes it possible to discover and link to legal Gold or Bronze (free content at a publisher's website) and Green (e.g., author self-archived in a repository) OA versions. This partnership improves discoverability and access to article-level OA versions not only by adding more links to OA content, but also by prioritizing the links to the best version of OA content when multiple versions of an article are available”. Retrieved from https://images.webofknowledge.com/images/help/WOS/hp_results.html#dsy10670-TRS_open_access.

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Acknowledgements

This work would not have been possible without the financial support of São Paulo Research Foundation (FAPESP) Grant #2012/00255-6 and CNPq (Research Productivity Grant #311237/2019-3).

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Correspondence to Rogério Mugnaini.

Appendices

Appendix 1

See Table

Table 10 Significance (p value) of the factors (type of collaboration, presence of DOI in the article and mention of research funding) with regard to the areas of knowledge, considering the percentage of DOIs in the cited references of the articles (2002 onwards): for the whole period (12–16), beginning (12–13) and end (15–16) bienniums

10.

Appendix 2

See Table

Table 11 Significance (p value) of the factor (open access route) with regard to the areas of knowledge, considering the percentage of DOIs in the cited references of the articles (2002 onwards): for the whole period (12–16), beginning (12–13) and end (15–16) bienniums

11.

Appendix 3

See Table

Table 12 Significance (p value) of the factors (type of collaboration, presence of DOI in the cited references of the articles and mention of research funding) with regard to the open access routes, considering the percentage of DOIs in the cited references of the articles (2002 onwards): for the whole period (12–16), beginning (12–13) and end (15–16) bienniums

12.

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Mugnaini, R., Fraumann, G., Tuesta, E.F. et al. Openness trends in Brazilian citation data: factors related to the use of DOIs. Scientometrics 126, 2523–2556 (2021). https://doi.org/10.1007/s11192-020-03663-7

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  • DOI: https://doi.org/10.1007/s11192-020-03663-7

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