Normalization of zero-inflated data: An empirical analysis of a new indicator family and its use with altmetrics data
作者:
Highlights:
• New field- and time normalizing indicators’ family have been proposed for zero-inflated count data (e.g. altmetrics).
• These indicators basically compare proportions of mentioned papers (e.g. on Facebook) with proportions of non-mentioned papers.
• We propose a new indicator belonging to the family: Mantel-Haenszel quotient (MHq).
• Using citation counts, we find that the indicator MHq can distinguish between different quality levels (in terms of peers’ assessments).
• Results with MHq show that the relationship between citations and peer assessments is stronger than between altmetrics and these assessments.
摘要
•New field- and time normalizing indicators’ family have been proposed for zero-inflated count data (e.g. altmetrics).•These indicators basically compare proportions of mentioned papers (e.g. on Facebook) with proportions of non-mentioned papers.•We propose a new indicator belonging to the family: Mantel-Haenszel quotient (MHq).•Using citation counts, we find that the indicator MHq can distinguish between different quality levels (in terms of peers’ assessments).•Results with MHq show that the relationship between citations and peer assessments is stronger than between altmetrics and these assessments.
论文关键词:Zero-inflated data,Citation counts,Altmetrics,Equalized Mean-based Normalized Proportion Cited (EMNPC),Mean-based Normalized Proportion Cited (MNPC),Mantel-Haenszel quotient (MHq)
论文评审过程:Received 9 November 2017, Revised 22 December 2017, Accepted 24 January 2018, Available online 4 February 2018, Version of Record 23 August 2018.
论文官网地址:https://doi.org/10.1016/j.joi.2018.01.010