Title
Multiplicative versus fractional counting methods for co-authored publications. The case of the 500 universities in the Leiden Ranking
Abstract
•We discuss a new shortcoming of the full counting method.•We compare the fractional and the multiplicative counting methods for the 500 Leiden Ranking universities.•Small differences between co-authorship rates and citation impact values generate considerable re-rankings between universities.•We study which type of university benefits from a move from the fractional to the multiplicative counting method.
Year
DOI
Venue
2015
10.1016/j.joi.2015.10.002
Journal of Informetrics
Keywords
Field
DocType
Co-authorship,Counting methods,Citation impact
Data mining,Normalization (statistics),Ranking,Multiplicative function,Computer science,Citation impact,Citation,Statistics
Journal
Volume
Issue
ISSN
9
4
1751-1577
Citations 
PageRank 
References 
7
0.46
11
Authors
2
Name
Order
Citations
PageRank
Antonio Perianes-Rodriguez113910.18
Javier Ruiz-Castillo236624.81