نتایج جستجو برای: bibliometric

تعداد نتایج: 8523  

Journal: :Actas dermo-sifiliograficas 2017
A Molina-Leyva M A Descalzo I García-Doval

BACKGROUND AND OBJECTIVE Bibliometric indicators and analyses of clinical research articles can help to quantify the scientific production of hospitals and institutions and identify their main areas of research. The aim of this study was to draw up a bibliometric map of clinical research in dermatology by Spanish hospitals and institutions through an analysis of quantitative, qualitative, and t...

Journal: :EMBO reports 2015
Lutz Bornmann Loet Leydesdorff

P rofessor Stephen Holgate comments on our statement that “the new UK Research Excellence Framework (REF) puts more emphasis on bibliometric data and less on peer review than did its predecessor” [1]. As the Chair of Main Panel A of REF 2014, he describes the informed peer review process in his domain. In our opinion, peer review can indeed be considered as an ideal way of evaluating research. ...

Purpose: The aim of this study was to examine 18 issues of the journal of Information Science and Public Libraries. Methodology: This is a survey- descriptive study with a bibliometric approach. Citation analysis,  one of the most popular bibliometric techniques, is used. The research population includes 18 issues of the Journal of Information Science and Public Libraries from the beginning of...

Journal: :JASIST 2007
Howard D. White

In Sperber and Wilson's relevance theory (RT), the ratio Cognitive Effects/Processing Effort defines the relevance of a communication. The tf*idf formula from information retrieval is used to operationalize this ratio for any item co-occurring with a user-supplied seed term in bibliometric distributions. The tf weight of the item predicts its effect on the user in the context of the seed term, ...

Journal: :J. Informetrics 2010
Ludo Waltman Nees Jan van Eck Ed C. M. Noyons

In the analysis of bibliometric networks, researchers often use mapping and clustering techniques in a combined fashion. Typically, however, mapping and clustering techniques that are used together rely on very different ideas and assumptions. We propose a unified approach to mapping and clustering of bibliometric networks. We show that the VOS mapping technique and a weighted and parameterized...

Journal: :American journal of public health 2003
Naomar Almeida-Filho Ichiro Kawachi Alberto Pellegrini Filho J Norberto W Dachs

We conducted a bibliometric and content analysis of research on health inequalities produced in Latin American and Caribbean countries. In our bibliometric analysis (n = 576), we used indexed material published between 1971 and 2000. The content analysis (n = 269) covered the period 1971 to 1995 and included unpublished material. We found recent rapid growth in overall output. Brazil, Chile, an...

2017
Gangan Prathap

Comparative end-to-end research evaluations of large research entities like countries, agencies or institutions need to separate out the bibliometric part of the chain from the econometric part. Both size-dependent and size-independent terms play a crucial role to combine quantity and quality (impact) in a meaningful way. Output or outcome at the bibliometric level can be measured using zeroth,...

2010
Pedro Antunes José A. Pino

This paper presents a meta-analysis of the CRIWG conference. The study is organized in three main sections: bibliometric analysis, analysis of references and subject analysis. The bibliometric analysis indicates that CRIWG is significantly above the average citation index of similar papers published in LNCS. The analysis of references shows a significant dependence on ACM papers and very low cr...

Journal: :Int. J. Hybrid Intell. Syst. 2010
Antonio Gabriel López-Herrera Manolo J. Cobo Enrique Herrera-Viedma Francisco Herrera

In this paper, a bibliometric study on the interconnections between the fuzzy logic theory field and the other softcomputing techniques is presented. Bibliometric maps showing the associations between the main concepts between these research fields are provided for the periods 1990–1999, 2000–2003, and 2004–2007. The maps provide insight into the structure of these fields. They visualize the di...

Journal: :Learned Publishing 2013
Emilio Delgado López-Cózar Alvaro Cabezas-Clavijo

The launch of Google Scholar Metrics as a tool for assessing scientific journals may be serious competition for Thomson Reuters’ Journal Citation Reports, and for Scopus’ powered Scimago Journal Rank. , A review of these bibliometric journal evaluation products is performed. We compare their main characteristics from different approaches: coverage, indexing policies, search and visualization, b...

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