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- W2038092667 abstract "Background Conventional scientometric predictors of research performance such as the number of papers, citations, and papers in the top 1% of highly cited papers cannot be validated in terms of the number of Nobel Prize achievements across countries and institutions. The purpose of this paper is to find a bibliometric indicator that correlates with the number of Nobel Prize achievements. Methodology/Principal Findings This study assumes that the high-citation tail of citation distribution holds most of the information about high scientific performance. Here I propose the x-index, which is calculated from the number of national articles in the top 1% and 0.1% of highly cited papers and has a subtractive term to discount highly cited papers that are not scientific breakthroughs. The x-index, the number of Nobel Prize achievements, and the number of national articles in Nature or Science are highly correlated. The high correlations among these independent parameters demonstrate that they are good measures of high scientific performance because scientific excellence is their only common characteristic. However, the x-index has superior features as compared to the other two parameters. Nobel Prize achievements are low frequency events and their number is an imprecise indicator, which in addition is zero in most institutions; the evaluation of research making use of the number of publications in prestigious journals is not advised. Conclusion The x-index is a simple and precise indicator for high research performance." @default.
- W2038092667 created "2016-06-24" @default.
- W2038092667 creator A5072288758 @default.
- W2038092667 date "2011-05-27" @default.
- W2038092667 modified "2023-10-18" @default.
- W2038092667 title "A Simple Index for the High-Citation Tail of Citation Distribution to Quantify Research Performance in Countries and Institutions" @default.
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- W2038092667 doi "https://doi.org/10.1371/journal.pone.0020510" @default.
- W2038092667 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3103585" @default.
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- W2038092667 hasPublicationYear "2011" @default.
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