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Does Google Scholar contain all highly cited documents (1950-2013)? [article]

Alberto Martín-Martín, Enrique Orduña-Malea, Juan Manuel Ayllón, Emilio Delgado López-Cózar
2015 arXiv   pre-print
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 cited documents in Google Scholar and define their core characteristics: their languages, their file format, or how many of them can be accessed  ...  H eliminating Figu Table 1 . 1 Top 25 most cited documents in Google Scholar (1950-2013) Document type Table 3 ) 3 , foll different jou ed.  ... 
arXiv:1410.8464v4 fatcat:a3gkagjgsbahbkoxjnwjft56dy

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

Alberto Martín-Martín, Enrique Orduna-Malea, Juan M. Ayllón, Emilio Delgado López-Cózar
2016 Revista Española de Documentación Científica  
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  ...  Dada la alta presencia de libros (manuales) y, en menor medida, de otras tipologías documentales (como congresos o informes), se concluye que Google Scholar ofrece una visión original y diferente del conjunto  ...  of languages in the highly cited documents in GS by years of publication Figure 6 . 6 Percentage of freely accessible highly cited documents in Google Scholar(1950-2013).  ... 
doi:10.3989/redc.2016.4.1405 fatcat:zir6kfejijghjonxo5nqr5cq6u

Creation of bibliometric tools for evaluation based on data from Google Scholar

Alberto Martín-Martín, Emilio Delgado López-Cózar
2019 Zenodo  
(a short-lived service that listed highly-cited documents).  ...  In subsequent years, GS launched several services based on data from its document base: Google Scholar Citations (an author profile service), Google Scholar Metrics (a journal ranking service), and GSCP  ...  Abstract (English) This article uses Google Scholar (GS) as a source of data to analyse Open Access (OA) levels across all countries and fields of research.  ... 
doi:10.5281/zenodo.3241712 fatcat:vjkjzo4zenhglji6asjl46rzly

About the size of Google Scholar: playing the numbers [article]

Enrique Orduña-Malea, Juan Manuel Ayllón, Alberto Martín-Martín, Emilio Delgado López-Cózar
2014 arXiv   pre-print
The results, despite providing disparate values, place the estimated size of Google Scholar in about 160 million documents.  ...  However, the fact that all methods show great inconsistencies, limitations and uncertainties, makes us wonder why Google does not simply provide this information to the scientific community if the company  ...  Academic Search and Web of Science (1950-2013) - MAS collects documents before 1900 unlike WoS (as this database states in its coverage policy).  ... 
arXiv:1407.6239v2 fatcat:umi64ugex5dpldqq4akzdjbn7e

An Evidence-Based Review of Academic Web Search Engines, 2014-2016: Implications for librarians' practice and research agenda

Jody Condit Fagan
2017 Information Technology and Libraries  
While the fitness of Google Scholar for research purposes has been examined repeatedly, Microsoft Academic and Google Books have not received much attention.  ...  This article seeks to summarize research concerning Google Scholar, Google Books, and Microsoft Academic from the past three years with a mind to informing practice and setting a research agenda.  ...  A large-scale, longitudinal study of highly-cited articles 1950-2013 found 40% of article citations in the sample were freely available in full text .  ... 
doi:10.6017/ital.v36i2.9718 fatcat:hsp4zcnf35gl7kcgolnac4xxnu

Google Scholar como una fuente de evaluación científica: una revisión bibliográfica sobre errores de la base de datos

Enrique Orduna-Malea, Alberto Martín-Martín, Emilio Delgado López-Cózar
2017 Revista Española de Documentación Científica  
Scholar (y productos derivados, como Google Scholar Metrics y Google Scholar Citations).  ...  Google Scholar es un motor de búsqueda académico y herramienta de descubrimiento lanzada por Google (ahora Alphabet) en noviembre de 2004.  ...  ., 2017) of a sample of 32,680 highly-cited documents, the authors confirmed that there is agreement between the publication dates reported by Google Scholar and Web of Science for 96.7% of documents.  ... 
doi:10.3989/redc.2017.4.1500 fatcat:l7zklfdlzvdmtcbzxc73so64te

Methods for estimating the size of Google Scholar

Enrique Orduna-Malea, Juan M. Ayllón, Alberto Martín-Martín, Emilio Delgado López-Cózar
2015 Scientometrics  
However, all the methods show considerable limitations and uncertainties due to inconsistencies in the Google Scholar search functionalities.  ...  The results, despite providing disparate values, place the estimated size of Google Scholar at around 160 to 165 million documents.  ...  HCE 1700-2013 596,000 1750-2013 567,000 1800-2013 552,000 1850-2013 566,000 1900-2013 541,000 1950-2013 617,000 2000-2013 693,000 Table 5 . 5 Inconsistencies in Google Scholar queries  ... 
doi:10.1007/s11192-015-1614-6 fatcat:466ljyjnjfbbtoni4qkdmfftiq

Evidence of open access of scientific publications in Google Scholar: A large-scale analysis

Alberto Martín-Martín, Rodrigo Costas, Thed van Leeuwen, Emilio Delgado López-Cózar
2018 Journal of Informetrics  
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 published in 2009 or 2014 and covered by the three main citation indexes in the Web of Science (2,269,022 documents) were selected for study.  ...  highly cited documents in Google Scholar for the period 1950-2013 and found that Google Scholar displayed links to freely accessible full texts for 40% of the documents in the sample.  ... 
doi:10.1016/j.joi.2018.06.012 fatcat:prxmkpsikzbrbbxnow7hkrmq3a

The Visibility of Authority Records, Researcher Identifiers, Academic Social Networking Profiles, and Related Faculty Publications in Search Engine Results

Rebecca B. French, Jody Condit Fagan
2019 Journal of Web Librarianship  
Faculty with more profiles were more visible in search engine results, and faculty with authority records ranked more highly in Google.  ...  The researchers searched for the faculty and their publications on the social networking and identity websites directly, then used Google, Bing, and Google Scholar to record which of the faculty members  ...  s (2014) large-scale, longitudinal study of highly-cited articles 1950-2013 found 40% of them to be public full text, while Jamali and Nabavi (2015) found 61% of articles in their 2004-2014 sample to  ... 
doi:10.1080/19322909.2019.1591324 fatcat:aqsvuq4p5zb3ffqm6am3bwbtle

Research output availability on academic social networks: implications for stakeholders in academic publishing

Mikael Laakso, Juho Lindman, Cenyu Shen, Linus Nyman, Bo-Christer Björk
2017 Electronic Markets  
ASNs have for many become the primary way to provide access to one's research output, outpacing all other types of online locations such as personal websites and repositories.  ...  2012-2014 by Hanken affiliated authors, 2) semistructured interviews with faculty active in publishing in order to gain insight into motivations for use and use patterns, and 3) a survey distributed to all  ...  cited articles published during the timeframe of 1950-2013 (Martín-Martín, Orduña-Malea, Ayllón, & López-Cózar 2014).  ... 
doi:10.1007/s12525-016-0242-1 fatcat:olgkvnsbnzcg7nn6srnvjsdm2u

Classic papers: déjà vu, a step further in the bibliometric exploitation of Google Scholar [article]

Emilio Delgado Lopez-Cozar, Alberto Martin-Martin, Enrique Oduna-Malea
2017 pre-print
characteristics and features of Google Scholar new service Classic Papers, as well as its main strengths and weaknesses, are addressed.  ...  This product currently displays the most cited English-language original research articles by fields and published in 2006  ...  Does Google Scholar contain all highly cited documents (1950-2013)? EC3 Working Papers, 19. arXiv preprint arXiv:1410.8464  ... 
doi:10.13140/rg.2.2.35729.22880/1 arXiv:1706.09258v1 fatcat:5ru6riiurfahzfnbwludqm423q

Right-wing Terrorism and Militancy in the Nordic Countries: A Comparative Case Study

Jacob Aasland Ravndal
2018 Terrorism and Political Violence  
In short, Sprinzak's 2 According to search queries on "right-wing terrorism" on Google Scholar and Web of Science.  ...  Combined data from these two databases thus indicate general trends of rightwing terrorism 1950-2013, despite different registration methods. 17 TWEED registered 648 right-wing terrorist attacks 1950-2004  ... 
doi:10.1080/09546553.2018.1445888 fatcat:bft2lyzecbe6tlgyugbmcfktci

Handling healthcare workforce planning with care: where do we stand?

Mário Amorim Lopes, Álvaro Santos Almeida, Bernardo Almada-Lobo
2015 Human Resources for Health  
Methods: We revisited more than 60 years of documented research to better understand the chronological and historical evolution of the area and the methodologies that have stood the test of time.  ...  Acknowledgements We are extremely grateful to all the reviewers for their insightful comments and contributions, as they significantly contributed to the improvement of this paper.  ...  These terms were then used on the online databases PubMed, MEDLINE, Embase, ProQuest, Healthstar, ABI/Inform, INSPEC, Google Scholar and Scopus to obtain a base set of the 10 most cited, 5 most recent  ... 
doi:10.1186/s12960-015-0028-0 pmid:26003337 pmcid:PMC4464124 fatcat:lhzfrrvir5c47dldbw23wu7xve

Papaya: A gifted nutraceutical plant - a critical review of recent human health research

Kaliyaperumal Karunamoorthi, Hyung-Min Kim, Kaliyaperumal Jegajeevanram, Jerome Xavier, Jayaraman Vijayalakshmi
out for the time period 1950 -2013.  ...  This clearly indicates that the papaya seeds contain the highly active antiplasmodial compounds.  ... 
doi:10.5667/tang.2013.0028 fatcat:v6yicfczqrhhpak7uyiu2jdwo4

The Mulata Affect: Bioremediation in the Cuban Arts

Stephen A. Cruikshank
For a description of musical themes in modernist art work and images of these works, see the curator Juan A.Martínez's work Cuban Art and Identity: 1900-1950 (2013 from the Vero Beach Museum of Art in  ...  One of the most cited scholars of this "affective turn" is the Canadian philosopher Brian Massumi who has theorized what he calls "the primacy of the affective in image reception" ("The Autonomy" 274).  ... 
doi:10.7939/r3ms3kh5p fatcat:urvjy35b7favdjkmypvysezp2y