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Listar por palabra clave "Academic search engines"

Mostrando ítems 1-11 de 11

A Novel Method for Depicting Academic Disciplines through Google Scholar citations: the Case of Bibliometrics

Martín-Martín, Alberto; Orduña Malea, Enrique; Delgado-López-Cózar, Emilio (Springer-Verlag, 2018-03)

[EN] 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 Citations (GSC). We call this method ...
A two-sided academic landscape: snapshot of highly-cited documents in Google Scholar (1950-2013)

Martín-Martín, Alberto; Orduña Malea, Enrique; Ayllon, Juan M.; Delgado-López-Cózar, Emilio (Consejo Superior de Investigaciones Científicas (CSIC), 2016)

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 ...
Back to the past: on the shoulders of an academic search engine giant

Martín-Martín, Alberto; Orduña Malea, Enrique; Ayllon, Juan M.; Delgado-López-Cózar, Emilio (SpringerAkadémiai Kiadó, 2016-06)

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 demonstrate this finding we conducted a complementary ...
Can we use Google Scholar to identify highly-cited documents?

Martín-Martín, Alberto; Orduña Malea, Enrique; Harzing, AW; Delgado-López-Cózar, Emilio (Elsevier, 2017)

[EN] 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 carried out a longitudinal analysis ...
Google Scholar as a source for scholarly evaluation: a bibliographic review of database errors

Orduña Malea, Enrique; Martín-Martín, Alberto; Delgado-López-Cózar, Emilio (Departmento de Publicaciones del CSIC, 2017-10)

[ES] Google Scholar es un motor de búsqueda académico y herramienta de descubrimiento lanzada por Google (ahora Alphabet) en noviembre de 2004. El hecho de que para cada registro bibliográfico se proporcione información ...
Google Scholar, Web of Science, and Scopus: A systematic comparison of citations in 252 subject categories

Martín-Martín, Alberto; Orduña-Malea, Enrique; Thelwall, Mike; Delgado Lopez-Cozar, Emilio (Elsevier, 2018-11)

[EN] 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 recent or systematic evidence about the ...
Methods for estimating the size of Google Scholar

Orduña Malea, Enrique; Ayllon, Juan M.; Martín-Martín, Alberto; Delgado-López-Cózar, Emilio (SpringerAkadémiai Kiadó, 2015-09)

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 increased interest in the size of the academic ...
The lost academic home: institutional affiliation links in Google Scholar Citations

Orduña Malea, Enrique; Ayllón, Juan M; Martín-Martín, Alberto; Delgado-López-Cózar, Emilio (Emerald, 2017)

[EN] Purpose - Google Scholar Citations (GSC) provides an institutional affiliation link which groups together authors who belong to the same institution. The purpose of this paper is to ascertain whether this feature is ...
The silent fading of an academic search engine: the case of Microsoft Academic Search

Orduña Malea, Enrique; Martín-Martín, Alberto; Ayllón, Juan M; Delgado-López-Cózar, Emilio (Emerald, 2014)

Purpose - The purpose of this paper is to describe the obsolescence process of Microsoft Academic Search (MAS) as well as the effects of this decline in the coverage of disciplines and journals, and their influence in the ...
Universities through the eyes of bibliographic databases: a retroactive growth comparison of Google Scholar, Scopus and Web of Science

Orduña Malea, Enrique; Aytac, Selenay; Tran, Clara Y. (Springer-Verlag, 2019-10)

[EN] The purpose of this study is to ascertain the suitability of GS's url-based method as a valid approximation of universities' academic output measures, taking into account three aspects (retroactive growth, correlation, ...
Use of Research Organizations Registry (ROR) identifiers in author academic profiles: the case of Google Scholar Profiles

Orduña Malea, Enrique; Bautista-Puig, Núria (Universidad Pompeu Fabra, 2022)

[EN] Research organizations¿ persistent identifiers allow for reducing affiliation ambiguities, enable accurate institutional analyses and favor the design of modern online scholarly databases suited for research discovery ...