Convergent validity of bibliometric Google Scholar data in the field of chemistry—Citation counts for papers that were accepted by Angewandte Chemie International Edition or rejected but published elsewhere, using Google Scholar, Science Citation Index, Scopus, and Chemical Abstracts

Bornmann, Lutz; Marx, Werner; Schier, Hermann; Rahm, Erhard; Thor, Andreas; Daniel, Hans‐Dieter

doi:10.1016/j.joi.2008.11.001

Cited by 79 publications

(54 citation statements)

References 31 publications

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“…Some studies suggest the usage of multiple databases for research assessment [17][18]. However, others suggest that the accuracy of Google Scholar still needs to be tested [19][20] and that the results of ISI and Scopus are comparable [21][22]. Some studies further highlight the PAPER AUTHORSHIP AND CONTENT ANALYSIS OF ENGINEERING EDUCATION RESEARCH: A CASE STUDY advantages associated with ISI's Web of Science® (WoS) in terms of processing times [17] and in terms of the available information [23][24][25].…”

Section: Data Collection and Processingmentioning

confidence: 99%

Authorship and Content Analysis of Engineering Education Research: A Case Study

Nawaz

2016

Int. J. Eng. Ped.

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Abstract-In this paper, Engineering Education as a discipline has been analyzed by taking IEEE Transactions on Education (IEEE T Educ) as a case; for examining the various trends that have been emerging over time. Based on various criteria of authorship and citation, an effort is made to highlight the main contributors or top authors of this engineering education community. It was found that authorship trends have been shifting more towards collaboration. It was also found that the authorship community is growing, both in terms of publications and publishing authors. Study of citation patterns during the last decade, reveals a high citation count per article, which indicates a high readership of this journal. Later, the study of authorship and citation patterns shed light on the trend that multi-author articles are cited more often than single-author articles. This study was compared with earlier studies in the field of Engineering Education Research (EER) using keyword analysis and temporal evolution and distribution of keywords. Additionally key-phrase and topic modeling was performed to identify leading and evolving research areas within the EER., Analysis of word co-occurrence was performed to discover the main context in which the keywords have been used. Lastly, topic modeling techniques were applied for probabilistic distributions of IEEE topics and the results were in line with earlier studies.

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Section: Data Collection and Processingmentioning

confidence: 99%

Authorship and Content Analysis of Engineering Education Research: A Case Study

Nawaz

2016

Int. J. Eng. Ped.

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“…Cabezas-Clavijo and Delgado- Lopez-Cozar (2013) found that the average h-index values in Google Scholar are almost 30% higher than those obtained in ISI Web of Science, and about 15% higher than those collected by Scopus. GS citation data differed greatly from the findings using citations from the fee-based databases such as ISI Web of Science (Bornmann et al, 2009). Google Scholar overestimates the number of citable articles (in comparison with formal citation services such as Scopus and Thomson Reuters) because of the automated way it collects data, including 'grey' literature such as theses (Hooper, 2012).…”

Section: Google Scholar and Web Of Science Citationsmentioning

confidence: 82%

Equality of Google Scholar with Web of Science Citations: Case of Malaysian Engineering Highly Cited Papers

Ebrahim¹,

Salehi²,

Embi³

et al. 2014

MAS

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This study uses citation analysis from two citation tracking databases, Google Scholar (GS) and ISI Web of Science, in order to test the correlation between them and examine the effect of the number of paper versions on citations. The data were retrieved from the Essential Science Indicators and Google Scholar for 101 highly cited papers from Malaysia in the field of engineering. An equation for estimating the citation in ISI based on Google scholar is offered. The results show a significant and positive relationship between both citation in Google Scholar and ISI Web of Science with the number of versions. This relationship is higher between versions and ISI citations (r = 0.395, p<0.01) than between versions and Google Scholar citations (r = 0.315, p<0.01). Free access to data provided by Google Scholar and the correlation to get ISI citation which is costly, allow more transparency in tenure reviews, funding agency and other science policy, to count citations and analyze scholars' performance more precisely.

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“…The great variety of document types included in Google Scholar, as well as the impossibility of filtering by this variable (Bornmann et al, 2009;Aguillo, 2012) makes document type statistics quite difficult. For this reason, three complementary methods were used in this paper to detect the typology of the 64,000 documents in the sample.…”

Section: Document Typementioning

confidence: 99%

Un panorama académico de dos caras: retrato de los documentos altamente citados en Google Scholar (1950-2013)

Martín-Martín

Orduña-Malea

Ayllon

et al. 2016

Rev. esp. doc. cient.

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Cómo citar este artículo/Citation: Martín-Martín, A.; Orduna-Malea, E.; Ayllón, J. M. and Delgado López-Cózar, E. (2016).A two-sided academic landscape: portrait of highly-cited documents in Google Scholar . Revista Española de Documentación Científica, 39(4): e149. doi: http://dx.doi.org/10.3989/redc.2016.4.1405 Abstract:The main objective of this paper is to identify and define the core characteristics of the set of highly-cited documents in Google Scholar (document types, language, free availability, sources, and number of versions), on the hypothesis that the wide coverage of this search engine may provide a different portrait of these documents with respect to that offered by traditional bibliographic databases. To do this, a query per year was carried out from 1950 to 2013 identifying the top 1,000 documents retrieved from Google Scholar and obtaining a final sample of 64,000 documents, of which 40% provided a free link to full-text. The results obtained show that the average highly-cited document is a journal or book article (62% of the top 1% most cited documents of the sample), written in English (92.5% of all documents) and available online in PDF format (86.0% of all documents). Yet, the existence of errors should be noted, especially when detecting duplicates and linking citations properly. Nonetheless, the fact that the study focused on highly cited papers minimizes the effects of these limitations. Given the high presence of books and, to a lesser extent, of other document types (such as proceedings or reports), the present research concludes that the Google Scholar data offer an original and different vision of the most influential academic documents (measured from the perspective of their citation count), a set composed not only of strictly scientific material (journal articles) but also of academic material in its broadest sense.Keywords: Google Scholar; academic search engines; highly-cited documents; academic books; open access. Un panorama académico de dos caras: retrato de los documentos altamente citados en Google Scholar (1950-2013)Resumen: El principal objetivo de este trabajo es identificar el conjunto de documentos altamente citados en Google Scholar y definir sus características nucleares (tipología documental, idioma, disponibilidad en abierto, fuentes y número de versiones), bajo la hipótesis de que la amplia cobertura del buscador podría proporcionar un retrato diferente de este conjunto documental a la ofrecida por las bases de datos tradicionales. Para ello, se ha realizado una consulta por año (desde 1950 hasta 2013) identificando los 1000 documentos más citados y obteniendo una muestra final de 64.000 registros (el 40% de los cuales proporcionaban un enlace al texto completo). Los resultados muestran que el documento altamente citado "promedio" es un artículo de revista o libro (éstos constituyen el 62% del top 1% de los documentos más citados de la muestra), escrito en inglés (92.5%) y disponible online en PDF (86% de la muestra). Aun así, se debe indicar la existencia de error...

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Convergent validity of bibliometric Google Scholar data in the field of chemistry—Citation counts for papers that were accepted by Angewandte Chemie International Edition or rejected but published elsewhere, using Google Scholar, Science Citation Index, Scopus, and Chemical Abstracts

Cited by 79 publications

References 31 publications

Authorship and Content Analysis of Engineering Education Research: A Case Study

Authorship and Content Analysis of Engineering Education Research: A Case Study

Equality of Google Scholar with Web of Science Citations: Case of Malaysian Engineering Highly Cited Papers

Un panorama académico de dos caras: retrato de los documentos altamente citados en Google Scholar (1950-2013)

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