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. However, the problem here is that the path length and clustering coefficient lose the virtual meaning in that setting. For illustration, the path length of an undirected co-authorship network may indicate the social distance between the authors in the

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Publishing in international journals

An examination of trends in chinese co-authorship

Scientometrics
Authors:
Jo Royle
,
Louisa Coles
,
Dorothy Williams
, and
Paul Evans

Abstract  

This paper examines patterns of Chinese authorship, focusing particularly on international co-authorship, in a sample of 37,526 articles from Elsevier journals published in 2004. Trends relating to potential influences such as subject, journal impact factor and article type are explored. A slightly higher proportion of articles with at least one Chinese author was observed as compared to previous studies. Articles that are a product of Chinese international collaboration account for almost 20% of the Chinese sample as a whole, a similar proportion to levels of international collaboration within the sample overall. Chinese international co-authorship is most common in the Earth & Environmental Sciences. Where China is involved in international collaboration, it is often a proactive participant: 49% of articles that are a result of Chinese international collaboration have a Chinese corresponding author. With some minor variations in subject categories, countries favoured in international co-authorship reflect world shares in publishing and factors such as geographical proximity and political links.

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Abstract  

The development of publication activity and citation impact in Scandinavian countries is studied for the 1980–1997 period. Besides the analysis of trends in publication and citation patterns and of national publication profiles, an attempt is made to find statistical evidences of the relation between international co-authorship and both research profile and citation impact in the Nordic countries. A coherent Scandinavian cluster has been found, and the Nordic countries have strong co-authorship links with highly developed countries in West Europe and North America. It was found that international co-authorship, in general, results in publications with higher citation rates than purely domestic papers. International collaboration has, however, not the same influence on publication profiles and citation impact of each analysed countries.

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Scientometrics
Authors:
Dalibor Fiala
,
François Rousselot
, and
Karel Ježek

Abstract  

In this paper, we present several modifications of the classical PageRank formula adapted for bibliographic networks. Our versions of PageRank take into account not only the citation but also the co-authorship graph. We verify the viability of our algorithms by applying them to the data from the DBLP digital library and by comparing the resulting ranks of the winners of the ACM E. F. Codd Innovations Award. Rankings based on both the citation and co-authorship information turn out to be “better” than the standard PageRank ranking.

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Scientometrics
Authors:
Pauline Mattsson
,
Patrice Laget
,
Anna Nilsson
, and
Carl-Johan Sundberg

Abstract  

The increase of co-authored papers is a recognized fact. At the same time the factors influencing this change is not well known. This article aims at studying the patterns of EU science co-authorships. We analyzed articles published in 18 EU countries and their intra-EU (within EU) and extra-EU (with partners outside EU) co-publication pattern in five scientific fields. The results point to a Europeanisation of shared co-authorship rather than an internationalization outside Europe. Smaller countries co-authored more with other EU countries than bigger countries while the co-authorship rate with extra-EU partners was not dependent of the country’s size. The co-authorship patterns were also found to depend on the scientific field. Engineering and Computing & Technology was the field with the highest level of national publications and Physical, Chemical & Earth Sciences the field with the highest level of both intra-EU and extra-EU collaborations. These results support the view that a single market for research is developing within the EU with a seamless extension of national systems into other Member States ones.

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Abstract  

A statistical overview is given of the first 50 volumes of the journal Scientometrics.Authorship and co-authorship characteristics, as well as citation and reference patterns of the journal are analysed. Geographic and thematic maps of its papers are presented. A brief outlook to the future prospects and challenges is attempted

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Abstract  

A study of the production of scientific papers, co-authorships, and R&D-expenditures shows that science is becoming more equally distributed among the OECD-countries. Papers in the journalScience are more unequally distributed than papers inScience Citation Index as a whole or the distribution of R&D-investments. Scientific collaboration, is a major factor affecting the distribution of scientific papers.

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Abstract  

A preliminary theoretical study is given of scientometric parameters such as co-authorship, co-references, co-citation, etc. The concept is based on a scientific space whose elements are the scientific articles and their authors. The matrix operations representing certain hypotheses as well as sound definitions of concepts used so far in scientometrics are discussed.

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Summary  

This paper investigates the research collaboration of Korean physicist (1977-2000), using co-authorship method. After discussing on the co-authorship method, this paper suggests the necessity of taking contexts of research collaboration into consideration, especially for scientifically “peripheral”countries. The analysis shows an interesting finding with respect to the international collaboration: the proportion of internationally collaborated papers did not increase substantially during the last two decades, which is against the results of other studies. An analysis of the number of participating countries shows that multilateral collaboration has increased considerably in the last 20 years, though the proportion of international research collaboration remains stable. The results of this study give an indirect support to the transformation of research collaboration from rather 'asymmetrical' from 'symmetrical' one.

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Abstract  

Co-authorship analysis is a well-established tool in bibliometric analysis. It can be used at various levels to trace collaborative links between individuals, organisations, or countries. Increasingly, informetric methods are applied to patent data. It has been shown for another method that bibliometric tools cannot be applied without difficulty. This is due to the different process in which a patent is filed, examined, and granted and a scientific paper is submitted, refereed and published. However, in spite of the differences, there are also parallels between scholarly papers and patents. For instance, both papers and patents are the result of an intellectual effort, both disclose relevant information, and both are subject to a process of examination. Given the similarities, we shall raise the question as to which extent one can transfer co-authorship analysis to patent data.

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