Yoshikane, F et al An analysis of the connection between researchers' productivity and their coauthors' past attributions, including the importance in collaboration networks

[Eugene Garfield]

Email address: fuyuki at niad.ac.jp

Author(s): Yoshikane, F (Yoshikane, Fuyuki); Nozawa, T (Nozawa, Takayuki); 
Shibui, S (Shibui, Susumu); Suzuki, T (Suzuki, Takafumi) 

Title: An analysis of the connection between researchers' productivity and 
their coauthors' past attributions, including the importance in 
collaboration networks 

Editor(s): TorresSalinas, D; Moed, HF 

Source: PROCEEDINGS OF ISSI 2007: 11TH INTERNATIONAL CONFERENCE OF THE 
INTERNATIONAL SOCIETY FOR SCIENTOMETRICS AND INFORMETRICS, VOLS I AND II 
783-791, 2007 

Language: English 
Document Type: Article 

Conference Title: 11th International Conference of the International-
Society-for-Scientrometrics-and-Informetrics 

Conference Date: JUN 25-27, 2007 

Conference Location: Madrid, SPAIN 

Conference Sponsors: Int Soc Scientrometr & Informetr, CSIC, Minist Educ & 
Ciencia, FECYT, Comunidad Madrid, Eugene Garfield Fdn, Thomson Sci, 
Elsevier, Journal Informetr, Scopus, Ayuntamiento Madrid, Sci Metrix, Univ 
Carlos III Madrid 

Author Keywords: co-authorship network; research collaboration; research 
productivity; educational effect 

KeyWords Plus: SCIENTIFIC COLLABORATION; INVISIBLE-COLLEGES; PATTERNS; 
AUTHORSHIP; SCIENCE; STUDENTS 

Abstract: Many studies have analyzed the "synchronic" correlation of 
properties, i.e., the correlation of properties in the same period, 
between authors and their co-authors. However, the "diachronic" 
correlation of properties, i.e., the correlation between their subsequent 
and precedent activity, has not yet been sufficiently studied using 
quantitative methods. This study pays attention to not only productivity 
but also the importance in the collaboration network as a measure of the 
researcher's activity, and clarifies whether there is any connection 
between (i) the researcher's activity subsequent to a collaboration and 
(ii) the collaborator's precedent activity, aiming at deriving knowledge 
about the diachronic effect of collaborators. The targets analyzed in this 
study are the newcomers who had first appeared in the domain of computer 
science in 1998 and their co-authors. The results show very little 
correlation between the subsequent activity of newcomers and the preceding 
activity of their co-authors. However, there are significant differences 
in the co-author's precedent activity between the newcomers who have 
published no papers after their first publication (those who have not 
become visible researchers) and the newcomers who have published at least 
one paper after then (those who continue to produce papers). 

Addresses: NIAD UE, Fac Univ Evaluat & Res, Tokyo, 1878587 Japan. 

Publisher Name: INT SOC SCIENTOMETRICS & INFORMETRICS-ISSI 
Publisher Address: KATHOLIEKE UNIV LEUVEN, FACULTEIT E T E W, DEKENSTRAAT 
2, LEUVEN, B-3000, BELGIUM 

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