The journal download immediacy index (DII): experiences using a Chinese full-text database

Relationships between the journal download immediacy index (DII) and some citation indicators are studied. The Chinese full-text database CNKI is used for data collection. Results suggest that the DII can be considered as an independent indicator, but that it also has predictive value for other indicators, such as a journal’s h-index. In case a journal cannot yet have an impact factor—because its citation history within the database is too short—the DII can be used for a preliminary evaluation. The article provides results related to the CNKI database as a whole and additionally, some detailed information about agricultural and forestry journals.

[1]  Johan Bollen,et al.  Usage Impact Factor: the effects of sample characteristics on usage-based impact metrics , 2006, J. Assoc. Inf. Sci. Technol..

[2]  Jorge E. Hirsch,et al.  An index to quantify an individual’s scientific research output that takes into account the effect of multiple coauthorship , 2009, Scientometrics.

[3]  Ronald Rousseau,et al.  Production and productivity of Chinese scientists as a function of their age: The period 1995-1999 , 2003 .

[4]  Ronald Rousseau,et al.  Journal Evaluation: Technical and Practical Issues, , 2002, Libr. Trends.

[5]  Ronald Rousseau,et al.  The role of China's English‐language scientific journals in scientific communication , 2004, Learn. Publ..

[6]  Kenneth Frazier,et al.  The Librarians' Dilemma: Contemplating the Costs of the "Big Deal" , 2001, D Lib Mag..

[7]  Tim Brody,et al.  Prior evidence that downloads predict citations , 2004 .

[8]  David C. Fowler Usage Statistics of E-serials , 2007 .

[9]  Anthony Watkinson,et al.  Digital journals, Big Deals and online searching behaviour: a pilot study , 2003, Aslib Proc..

[10]  Hua PinghuanSun Xiukun Wan Jinkun Bibliometrics Analysis on Cited Frequency and Downloaded Frequency of Journal Papers , 2005 .

[11]  Ronald Rousseau,et al.  The immediacy index and the journal impact factor: two highly correlated derived measures , 2004 .

[12]  Juan Gorraiz,et al.  Comparison of citation and usage indicators: the case of oncology journals , 2010, Scientometrics.

[13]  J. E. Hirsch,et al.  An index to quantify an individual's scientific research output , 2005, Proc. Natl. Acad. Sci. USA.

[14]  Thomas V Perneger,et al.  Competing interests: None declared. Ethical approval: Ethics committee of Côte d’Ivoire’s Ministry of Public Health and the Institutional Review Board of the US Centers for Disease Control and Prevention , 2004 .

[15]  Stevan Harnad,et al.  Earlier Web Usage Statistics as Predictors of Later Citation Impact , 2005, J. Assoc. Inf. Sci. Technol..