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Using three years of the Journal Citation Reports (2011, 2012, and 2013), indicators of transitions in 2012 (between 2011 and 2013) are studied using methodologies based on entropy statistics. Changes can be indicated at the level of…

数字图书馆 · 计算机科学 2015-08-18 Loet Leydesdorff , Wouter de Nooy

Publication and citation patterns can vary significantly between related disciplines or more narrow specialties, even when sharing journals. Journal-based structures are therefore not accurate enough to approximate certain specialties,…

数字图书馆 · 计算机科学 2016-10-25 Nadine Rons

To quantify the mechanism of a complex network growth we focus on the network of citations of scientific papers and use a combination of the theoretical and experimental tools to uncover microscopic details of this network growth. Namely,…

数字图书馆 · 计算机科学 2017-02-08 M. Golosovsky , S. Solomon

This paper explores intellectual and social proximity among scholarly journals by using network fusion techniques. Similarities among journals are initially represented by means of a three-layer network based on co-citations, common authors…

数字图书馆 · 计算机科学 2021-11-22 Federica Baccini , Lucio Barabesi , Alberto Baccini , Mahdi Khelfaoui , Yves Gingras

In addition to science citation indicators of journals like impact and immediacy, social network analysis provides a set of centrality measures like degree, betweenness, and closeness centrality. These measures are first analyzed for the…

物理与社会 · 物理学 2009-11-17 Loet Leydesdorff

Using three-year moving averages of the complete Journal Citation Reports 1994-2016 of the Science Citation Index and the Social Sciences Citation Index (combined), we analyze links between citing and cited journals in terms of (1) whether…

数字图书馆 · 计算机科学 2018-03-02 Loet Leydesdorff , Caroline S. Wagner , Lutz Bornmann

There is an overall perception of increased interdisciplinarity in science, but this is difficult to confirm quantitatively owing to the lack of adequate methods to evaluate subjective phenomena. This is no different from the difficulties…

A journal set in an interdisciplinary or newly developing area can be determined by including the journals classified under the most relevant ISI Subject Categories into a journal-journal citation matrix. Despite the fuzzy character of…

物理与社会 · 物理学 2009-11-06 Loet Leydesdorff , Carole Probst

The two Journal Citation Reports of the Science Citation Index 2004 and the Social Science Citation Index 2004 were combined in order to analyze and map journals and specialties at the edges and in the overlap between the two databases. For…

物理与社会 · 物理学 2009-11-17 Loet Leydesdorff

A number of journal classification systems have been developed in bibliometrics since the launch of the Citation Indices by the Institute of Scientific Information (ISI) in the 1960s. These systems are used to normalize citation counts with…

数字图书馆 · 计算机科学 2016-07-22 Loet Leydesdorff , Lutz Bornmann , Ping Zhou

Aggregated journal-journal citation networks based on the Journal Citation Reports 2004 of the Science Citation Index (5968 journals) and the Social Science Citation Index (1712 journals) are made accessible from the perspective of any of…

数字图书馆 · 计算机科学 2009-11-17 Loet Leydesdorff

The aggregated journal-journal citation matrix derived from the Journal Citation Reports 2001 can be decomposed into a unique subject classification by using the graph-analytical algorithm of bi-connected components. This technique was…

数字图书馆 · 计算机科学 2009-12-08 Loet Leydesdorff

In order to explore the suitability of a fine-grained classification of journal articles by exploiting multiple sources of information, articles are organized in a two-layer multiplex. The first layer conveys similarities based on the…

数字图书馆 · 计算机科学 2024-01-02 Alberto Baccini , Federica Baccini , Lucio Barabesi , Martina Cioni , Eugenio Petrovich , Daria Pignalosa

Characterizing graph properties is fundamental to the analysis and to our understanding of real-world networked systems. The local clustering coefficient, and the more recently introduced, local closure coefficient, capture powerful…

数据结构与算法 · 计算机科学 2025-07-11 Ilie Sarpe , Aristides Gionis

Applying graph-based approaches in deep learning receives more attention over time. This study presents statistical analysis on the use of graph-based approaches in deep learning and examines the scientific impact of the related articles.…

数字图书馆 · 计算机科学 2022-12-06 Ilker Turker , Serhat Orkun Tan

Classifying journals or publications into research areas is an essential element of many bibliometric analyses. Classification usually takes place at the level of journals, where the Web of Science subject categories are the most popular…

数字图书馆 · 计算机科学 2012-03-05 Ludo Waltman , Nees Jan van Eck

A citation-based indicator for interdisciplinarity has been missing hitherto among the set of available journal indicators. In this study, we investigate network indicators (betweenness centrality), journal indicators (Shannon entropy, the…

数字图书馆 · 计算机科学 2010-09-22 Loet Leydesdorff , Ismael Rafols

Literature recommendation is essential for researchers to find relevant articles in an ever-growing academic field. However, traditional methods often struggle due to data limitations and methodological challenges. In this work, we…

应用统计 · 统计学 2025-03-04 Kun Liu , Yan Zhang , Rui Pan , Tianchen Gao , Hansheng Wang

We investigate the similarities of pairs of articles which are co-cited at the different co-citation levels of the journal, article, section, paragraph, sentence and bracket. Our results indicate that textual similarity, intellectual…

数字图书馆 · 计算机科学 2017-10-30 Giovanni Colavizza , Kevin W. Boyack , Nees Jan van Eck , Ludo Waltman

Using "Analyze Results" at the Web of Science, one can directly generate overlays onto global journal maps of science. The maps are based on the 10,000+ journals contained in the Journal Citation Reports (JCR) of the Science and Social…

数字图书馆 · 计算机科学 2013-01-29 Loet Leydesdorff , Ismael Rafols , Chaomei Chen
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