Scientometrics
Volume/Issue:
Volume 83: Issue 1
Reliability-based citation impact factor and the manipulation of impact factor
Authors:
Guang Yu Harbin Institute of Technology Library, School of Management No. 17, Silin Street, Nan Gang Harbin Heilongjiang 150001 People’s Republic of China

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Dong-Hui Yang Harbin Institute of Technology Library, School of Management No. 17, Silin Street, Nan Gang Harbin Heilongjiang 150001 People’s Republic of China

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Wang Liang Harbin Institute of Technology Library, School of Management No. 17, Silin Street, Nan Gang Harbin Heilongjiang 150001 People’s Republic of China

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Pages:
259–270
Online Publication Date:
14 Aug 2009
Publication Date:
01 Apr 2010
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s11192-009-0083-1
Keywords:
Impact factor; Manipulation; R-impact factor; Self-cited rate
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Abstract  

According to the definition of reliability-based citation impact factor (R-impact factor) proposed by KUO & RUPE and the cumulative citation age distribution model, a mathematical expression of the relationship between R-impact factor and impact factor is established in this paper. By simulation of the change processes of the R-impact factor and impact factor in the manipulation process of the impact factor, it is found that the effect of manipulation can be partly corrected by the R-impact factor in some cases. Based on the Journal Citation Report database, impact factors of 4 normal journals and 4 manipulated journals were collected. The journals’ R-impact factors and self-cited rates in the previous two years were calculated for each year during the period 2000 to 2007, and various characteristics influenced by the manipulation were analyzed. We find that the R-impact factor has greater fairness than the impact factor for journals with relatively short cited half-lives. Finally, some issues about using the R-impact factor as a measure for evaluating scientific journals are discussed.

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Cover Scientometrics
Scientometrics
Print ISSN:
0138-9130
Online ISSN:
1588-2861

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Manuscript submission: http://www.editorialmanager.com/scim/

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Scientometrics
Language English
Size B5
Year of
Foundation		 1978
Volumes
per Year		 1
Issues
per Year		 12
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0138-9130 (Print)
ISSN 1588-2861 (Online)

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