*The is defined as the square root of the AWCR. It approximates the h-index if the mean citation rate remains constant over the years. The per-author age-weighted citation rate is similar to the plain AWCR, but is normalized to the number of authors for each paper. Appendix 6. Elements needed to calculate metric ID nr. Indicator Description WOS GS Astro. Enviro. Sci. Phil. Health Comments 1 Citation age c(t) The age of citations referring to a researcher’s work. 3 AR-index AR is the square root of the do not consider AR convincing as a sum of the average number ranking metric in research evaluation of citations per year of as the of a publication is very articles included in the steep and insensitive to disciplinary Accounts for citation differences intensity and age of publications in H core 4 index PI Percentage references to Interesting bibliometrically, but – (Price, 1970) documents, not older than 5 not interesting for researcher years, at the time of publication of the citing sources 5 Immediacy index Speed at which an average article in a journal is cited in the year it is published 6 If we can define a subject area Aggregate How quickly articles in a Immediacy Index subject are cited and journals this could be an (AII) useful metric 7 half-life (CHL) & A benchmark of the age of Aggregate Cited cited articles in a single Half-Life (ACHL) journal 8 Classification of Durability of scientific Only tested in WOS journal literature on distribution of durability subject categories citations over time among different fields 9 Age-weighted AWCR measures the number norm has to be decided to citation rate (AWCR, of citations to an entire body account for field characteristics such AW & per-author of work, adjusted for the age as expected age of citations, “sleeping of each individual beauties”, and delayed recognition. AWCR) *
ID nr. Indicator Description WOS GS Astro. Enviro. Sci. Phil. Health Comments 1 Citation age c(t) The age of citations referring to a researcher’s work. 3 AR-index AR is the square root of the sum of the average number of citations per year of articles included in the Accounts for citation intensity and age of publications in H core do not consider AR convincing as a ranking metric in research evaluation as the of a publication is very steep and insensitive to disciplinary differences 4 index – PI (Price, 1970) Percentage references to documents, not older than 5 years, at the time of publication of the citing sources Interesting bibliometrically, but not interesting for researcher 5 Immediacy index Speed at which an average article in a journal is cited in the year it is published 6 Aggregate Immediacy Index (AII) How quickly articles in a subject are cited If we can define a subject area and journals this could be an useful metric 7 half-life (CHL) & Aggregate Cited Half-Life (ACHL) A benchmark of the age of cited articles in a single journal 8 Classification of durability Durability of scientific literature on distribution of citations over time among different fields Only tested in WOS journal subject categories 9 Age-weighted citation rate (AWCR, AW & per-author AWCR) * AWCR measures the number of citations to an entire body of work, adjusted for the age of each individual norm has to be decided to account for field characteristics such as expected age of citations, “sleeping beauties”, and delayed recognition. *The is defined as the square root of the AWCR. It approximates the h-index if the mean citation rate remains constant over the years. The per-author age-weighted citation rate is similar to the plain AWCR, but is normalized to the number of authors for each paper. Appendix 6. Elements needed to calculate metric