Abstract

The evaluation of scientific journals with bibliometric indicators has been dominated by the Impact factor since the 70s. However Thomson has recently included in the Journal Citation Reports the Eigen factor and the Article influence score. On the other hand Elsevier has included in Scopus the Source normalized impact per paper (SNIP) and the SCImago journal rank (SJR). In this paper we introduce and describe these indicators. Secondly, to study the similarities we analyze correlations of the traditional indicators and the new ones, detailing the results across 27 scientific fields. It was noted that some couples of indicators such as Eigen- Citations, Impact factor-ArticleScore, Impact factor–SJR and SJR-ArticleScore do correlate in many areas. Correlations showed different trends in Science and Social science; therefore, in the last section we discuss the need to take into account the scientific area when selecting an indicator.

Abstract

Analysis of the citations received by the journal El profesional de la información (EPI) according to the databases ISI Science Citation Index (WoS) from Thomson Reuters, and Scopus from Elsevier, which index the journal since 2006. There are three main groups (or themes) recognized, that potentially can generate citations: bibliometrics, medicine, and library and information science in Spanish.

Abstract

Application of the SCImago Journal & Country Rank (SJR), based on the database Scopus, of Elsevier, to analyze the scientific output of the major Asian countries and their global impact, measured by the number of citations received. It can be observed a production increase of the Republic of Korea, India and especially China

Abstract

EL PORTAL SCIMAGO JOURNAL & COUNTRY RANK nace de la alianza entre la empresa Elsevier B.V. y el grupo de investigación Scimago. Como resultado de esta sinergia se ha desarrollado una plataforma de indicadores científicos a partir de la información contenida en la base de datos Scopus. La plataforma toma su nombre del indicador Scimago journal rank (SJR), elaborado por el grupo a partir del algoritmo Page rank, que representa la visibilidad de las revistas contenidas en la base de datos desde 1999 hasta 2006.

Abstract

Bibliometric indicators of production and impact of e-learning research are analyzed to know the contribution of countries and institutions in the scientific development of this subject and to strengthen its characterization as knowledge domain. We extracted bibliometric indicators from 39,244 documents indexed in Scopus and SCImago  Institutional  Rankings, and generated maps of production and collaboration networks and graphics about the impact of e-learning research in countries and institutions. The results of this combined analysis showed that at country level the United States produce most of the works and generated the greatest international collaboration. At institutional level, the University of Hong Kong is the most productive and National Taiwan University of Science and Technology is the one with the greatest collaboration. In addition, the analysis showed that Taiwan ranks first in productivity and impact, which is why we linked these results to a brief analysis of its national policies. This study presents a new method to analyze both emerging and established knowledge domains.

Abstract

A quantitative analysis of the scientific production of Ecuador in the Andean context is provided for 2000-2013, using data provided by the SCImago journal & country rank (SJR). We identified the indicators of absolute production and growth rate, and used three indicators to evaluate visibility: absolute citation, cites per document and international collaboration. We concluded that 1) Ecuador enjoyed positive growth in scientific production during the study period, except in 2010 and 2011; 2) it rebounded at the end of the period analyzed; 3) half of the production was in the areas of agriculture and medicine, which therefore appeared as the main areas of national scientific development; and 4) the most productive area, agriculture, was also the most cited.