Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/5525
Title: Observations concerning the two- and three-year synchronous impact factor, based on the Chinese Science Citation Database
Authors: ROUSSEAU, Ronald 
Jin, Bihui
Yang, Ninghui
Liu, Xiaomin
Issue Date: 2001
Source: Journal of documentation, 57(3). p. 349-357
Abstract: Generally speaking, the three-year synchronous impact factor is larger than the two-year one. This follows from theoretical models derived from observations based on ISI's database. Tn this article we present an exception to this general rule, based on data from the Chinese Science Citation Database (CSCD). In 1998 42% of this database's source journals did not follow the expected trend. As a possible explanation we note that, contrary to intuition, in the CSCD the changes in the number of both publications and citations are largely independent. It is, however, not ruled out that the observed discrepancies are nothing but statistical fluctuations of the basic publication-citation model.
Keywords: SCIENTIFIC JOURNALS
Document URI: http://hdl.handle.net/1942/5525
Link to publication: http:/dx.doi.org/10.1108/EUM0000000007085
ISSN: 0022-0418
e-ISSN: 1758-7379
ISI #: 000168323400002
Category: A1
Type: Journal Contribution
Appears in Collections:Research publications

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