Webometria e Altmetria nos repositórios brasileiros: avaliação da visibilidade e engajamento da produção científica na web

Abstract

The advancement of Open Science has driven the development of Institutional Repositories as strategic tools for managing and disseminating scientific output. In Brazil, these repositories are fundamental for ensuring transparency, visibility, and circulation of academic knowledge. In a context of information overload and digitization of scientific communication, this study proposes an integrated approach based on webometrics and altmetrics to simultaneously measure the academic reach and social reception of scientific publications. Objective: To analyze the contribution of webometric and altmetric indicators to the evaluation of the visibility and engagement of scientific production available in Brazilian institutional repositories. The research universe includes the repositories of higher education and research institutions registered in the OpenDOAR and Oasisbr directories. Methodology: This study is characterized as descriptive research, combining quantitative and qualitative methods to investigate the landscape of Brazilian institutional repositories. The methodological approach includes: mapping institutional repositories of higher education and research institutions registered in relevant national and international directories such as OpenDOAR and Oasisbr; (ii) identifying and verifying the presence of webometric and altmetric indicators on the platforms analyzed; (iii) the collection and analysis of data on the academic visibility and engagement of scientific publications deposited in these repositories; and (iv) the application of statistical tests, with emphasis on Pearson's correlation coefficient. Results: We identified 172 active institutional repositories in Brazil, predominantly federal institutions, with widespread adoption of the DSpace platform. We observed a moderate presence of webometric indicators in 48% of the repositories, but low adoption of altmetric indicators, present in only 22%, pointing to structural weaknesses and a lack of standardization. Repositories that adopt consolidated dissemination policies register higher volumes of views and mentions. The correlation analysis revealed a weak and negative relationship between views and altmetric mentions, suggesting that greater academic visibility does not necessarily imply greater social engagement. Geographic asymmetries and low integration with altmetric tools were identified, in addition to the limited use of persistent identifiers. Conclusion: The results demonstrate that the integration between webometrics and altmetrics offers relevant insights for a more complete assessment of the impact of scientific production in institutional repositories. However, the low use of the Handel persistent identifier and limited integration with altmetric monitoring tools represent significant barriers to assessment and social engagement through the Altmetric Explorer tool. We recommend strengthening information management policies, investing in interoperable digital infrastructure, and providing ongoing training for information professionals and repository managers. The systematic adoption of these metrics contributes to improving repository management, consolidating them as strategic agents of Open Science in Brazil.