On indexing in the Web of Science and predicting journal impact factor.

Author: Xiu-Fang WU ¹ ; Qiang FU ; Ronald ROUSSEAU
Author Information

1. Journals of Zhejiang University SCIENCE (A&B), Zhejiang University Press, Hangzhou, China. jzus@zju.edu.cn
Publication Type:Journal Article
MeSH: Abstracting and Indexing as Topic; Bibliometrics; Databases, Bibliographic; Periodicals as Topic; statistics & numerical data
From: Journal of Zhejiang University. Science. B 2008;9(7):582-590
CountryChina
Language:English
Abstract: We discuss what document types account for the calculation of the journal impact factor (JIF) as published in the Journal Citation Reports (JCR). Based on a brief review of articles discussing how to predict JIFs and taking data differences between the Web of Science (WoS) and the JCR into account, we make our own predictions. Using data by cited-reference searching for Thomson Scientific's WoS, we predict 2007 impact factors (IFs) for several journals, such as Nature, Science, Learned Publishing and some Library and Information Sciences journals. Based on our colleagues' experiences we expect our predictions to be lower bounds for the official journal impact factors. We explain why it is useful to derive one's own journal impact factor.