Are there too many uncited articles? Zero inflated variants of the discretised lognormal and hooked power law distributions
作者：
Highlights：
• Zero inflated variants of the discretised lognormal distribution fit sets of citation counts better than the standard model.
• Zero inflated variants of the shifted power law fit sets of citation counts better than the standard model.
• Scopus categories contain essentially uncitable articles, affecting the indicators calculating from them.
• Field normalised and percentile citation indicators need to take into account the presence of uncitable articles.
摘要
•Zero inflated variants of the discretised lognormal distribution fit sets of citation counts better than the standard model.•Zero inflated variants of the shifted power law fit sets of citation counts better than the standard model.•Scopus categories contain essentially uncitable articles, affecting the indicators calculating from them.•Field normalised and percentile citation indicators need to take into account the presence of uncitable articles.
论文关键词：Discretised lognormal distribution,Hooked power law,Citation analysis,Uncited articles,Zero inflated discretised lognormal distribution,Zero inflated hooked power law
论文评审过程：Received 15 January 2016, Revised 20 April 2016, Accepted 20 April 2016, Available online 6 May 2016, Version of Record 6 May 2016.
论文官网地址：https://doi.org/10.1016/j.joi.2016.04.014
