2k citations · 3k across the 25 of their papers we have counts for
27 papers
Google Scholar, Web of Science, and Scopus: a systematic comparison of citations in 252 subject categories
Alberto Martín-Martín, Enrique Orduna-Malea, Mike Thelwall +1
Despite citation counts from Google Scholar (GS), Web of Science (WoS), and Scopus being widely consulted by researchers and sometimes used in research evaluations, there is no rec…
Google Scholar as a data source for research assessment
Emilio Delgado López-Cózar, Enrique Orduna-Malea, Alberto Martín-Martín
The launch of Google Scholar (GS) marked the beginning of a revolution in the scientific information market. This search engine, unlike traditional databases, automatically indexes…
Google Scholar: the 'big data' bibliographic tool
Emilio Delgado Lopez-Cozar, Enrique Orduna-Malea, Alberto Martin-Martin +1
The launch of Google Scholar back in 2004 meant a revolution not only in the scientific information search market but also in research evaluation processes. Its dynamism, unparalle…
Unbundling Open Access dimensions: a conceptual discussion to reduce terminology inconsistencies
Alberto Martín-Martín, Rodrigo Costas, Thed N. van Leeuwen +1
The current ways in which documents are made freely accessible in the Web no longer adhere to the models established Budapest/Bethesda/Berlin (BBB) definitions of Open Access (OA).…
A novel method for depicting academic disciplines through Google Scholar Citations: The case of Bibliometrics
Alberto Martín-Martín, Enrique Orduna-Malea, Emilio Delgado López-Cózar
This article describes a procedure to generate a snapshot of the structure of a specific scientific community and their outputs based on the information available in Google Scholar…
Can we use Google Scholar to identify highly-cited documents?
Alberto Martín-Martín, Enrique Orduna-Malea, Anne-Wil Harzing +1
The main objective of this paper is to empirically test whether the identification of highly-cited documents through Google Scholar is feasible and reliable. To this end, we carrie…
The lost academic home: institutional affiliation links in Google Scholar Citations
Enrique Orduña-Malea, Juan M. Ayllón, Alberto Martín-Martín +1
This paper analyzes the new affiliation feature available in Google-Scholar Citations revealing that the affiliation-tool works well for most-institutions, it is unable to detect a…
Author-level metrics in the new academic profile platforms: The online behaviour of the Bibliometrics community
Alberto Martín-Martín, Enrique Orduna-Malea, Emilio Delgado López-Cózar
The new web-based academic communication platforms do not only enable researchers to better advertise their academic outputs, making them more visible than ever before, but they al…
Coverage of highly-cited documents in Google Scholar, Web of Science, and Scopus: a multidisciplinary comparison
Alberto Martín-Martín, Enrique Orduna-Malea, Emilio Delgado López-Cózar
This study explores the extent to which bibliometric indicators based on counts of highly-cited documents could be affected by the choice of data source. The initial hypothesis is…
Evidence of Open Access of scientific publications in Google Scholar: a large-scale analysis
Alberto Martín-Martín, Rodrigo Costas, Thed van Leeuwen +1
This article uses Google Scholar (GS) as a source of data to analyse Open Access (OA) levels across all countries and fields of research. All articles and reviews with a DOI and pu…
Classic papers: déjà vu, a step further in the bibliometric exploitation of Google Scholar
Emilio Delgado Lopez-Cozar, Alberto Martin-Martin, Enrique Oduna-Malea
After giving a brief overview of Eugene Garfield contributions to the issue of identifying and studying the most cited scientific articles, manifested in the creation of his Citati…
Do ResearchGate Scores create ghost academic reputations?
Enrique Orduna-Malea, Alberto Martin-Martin, Mike Thelwall +1
The academic social network site ResearchGate (RG) has its own indicator, RG Score, for its members. The high profile nature of the site means that the RG score may be used for rec…
Google Scholar and the gray literature: A reply to Bonato's review
Enrique Orduna-Malea, Alberto Martin-Martin, Emilio Delgado Lopez-Cozar
Recently, a review concluded that Google Scholar (GS) is not a suitable source of information "for identifying recent conference papers or other gray literature publications". The…
2016 Google Scholar Metrics released: a matter of languages... and something else
Alberto Martín-Martín, Juan Manuel Ayllón, Enrique Orduña-Malea +1
The 2016 edition of Google Scholar Metrics was released on July 15th 2016. There haven't been any structural changes respect to previous versions, which means that most of its limi…
A two-sided academic landscape: portrait of highly-cited documents in Google Scholar (1950-2013)
Alberto Martin-Martin, Enrique Orduna-Malea, Juan M. Ayllon +1
The main objective of this paper is to identify the set of highly-cited documents in Google Scholar and to define their core characteristics (document types, language, free availab…
Proceedings Scholar Metrics: H Index of proceedings on Computer Science, Electrical & Electronic Engineering, and Communications according to Google Scholar Metrics (2010-2014)
Alberto Martín-Martín, Juan Manuel Ayllón, Enrique Orduña-Malea +1
The objective of this report is to present a list of proceedings (conferences, workshops, symposia, meetings) in the areas of Computer Science, Electrical & Electronic Engineering,…
Back to the past: on the shoulders of an academic search engine giant
Alberto Martin-Martin, Enrique Orduna-Malea, Juan M. Ayllon +1
A study released by the Google Scholar team found an apparently increasing fraction of citations to old articles from studies published in the last 24 years (1990-2013). To demonst…
The counting house: measuring those who count. Presence of Bibliometrics, Scientometrics, Informetrics, Webometrics and Altmetrics in the Google Scholar Citations, ResearcherID, ResearchGate, Mendeley & Twitter
Alberto Martin-Martin, Enrique Orduna-Malea, Juan M. Ayllon +1
Following in the footsteps of the model of scientific communication, which has recently gone through a metamorphosis (from the Gutenberg galaxy to the Web galaxy), a change in the…
Improvements in Google Scholar Citations are for the summer: creating an institutional affiliation link feature
Enrique Orduna-Malea, Juan Manuel Ayllón, Alberto Martín-Martín +1
This report describes the feature introduced by Google to provide standardized access to institutional affiliations within Google Scholar Citations. First, this new tool is describ…
Methods for estimating the size of Google Scholar
Enrique Orduna-Malea, Juan M. Ayllon, Alberto Martin-Martin +1
The emergence of academic search engines (mainly Google Scholar and Microsoft Academic Search) that aspire to index the entirety of current academic knowledge has revived and incre…
Reviving the past: the growth of citations to old documents
Alberto Martín-Martín, Enrique Orduña-Malea, Juan Manuel Ayllón +1
In this Digest we review a recent study released by the Google Scholar team on the apparently increasing fraction of citations to old articles from studies published in the last 24…
Proceedings Scholar Metrics: H Index of proceedings on Computer Science, Electrical & Electronic Engineering, and Communications according to Google Scholar Metrics (2009-2013)
Alberto Martin-Martin, Enrique Ordunna-Malea, Juan Manuel Ayllon +1
The objective of this report is to present a list of proceedings (conferences, workshops, symposia, meetings) in the areas of Computer Science, Electrical & Electronic Engineering,…
Does Google Scholar contain all highly cited documents (1950-2013)?
Alberto Martín-Martín, Enrique Orduña-Malea, Juan Manuel Ayllón +1
The study of highly cited documents on Google Scholar (GS) has never been addressed to date in a comprehensive manner. The objective of this work is to identify the set of highly c…
Google Scholar Metrics 2014: a low cost bibliometric tool
Alberto Martín-Martín, Juan Manuel Ayllón, Enrique Orduña-Malea +1
We analyse the main features of the third edition of Google Scholar Metrics (GSM), released in June 2014, focusing on its more important changes, strengths, and weaknesses. Additio…