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Contents ARTICLE-LEVEL CITATION METRICS ...... 1 AUTHOR-LEVEL METRICS ...... 2 JOURNAL-LEVEL METRICS ...... 4

Article-Level Citation Metrics These metrics can be used as indicators of the performance of individual articles or publications. Data Field- Metric Brief Description Access via Timeframe Source(s) Weighted* Citation Count Number of citations to the document captured within the data , Web Scopus, Web source. of Science, of Science, No Customisable Google Google Scholar Scholar Field-Weighted Citation Measure of citations received by a document relative to the world Impact (FWCI) average of citations received by documents of similar type, year of publication, and research field over a three year period. An FWCI Scopus Scopus Yes 3 years of 1.00 indicates that the document has been cited as expected based on the global average. Citation benchmarking Measure of citations received by a document compared with the percentile average for documents of similar type, date of publication, and field of research within an 18 month period. A document in the 99th Scopus Scopus Yes 1.5 years percentile is in the top 1% globally.

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Author-Level Metrics These metrics can be calculated for whole-career or across a specific time period. Many can also be calculated for all subjects or specific FoR codes. Data Field- Metric Brief Description Access via Timeframe Source(s) Weighted* Scholarly output The total number of documents attributed to an author. Scopus, Web Scopus, , of Science, No Customisable Google Google Scholar Scholar Total citation count The total number of citations received by documents attributed to Scopus, Web Scopus, Web an author. Can be calculated with and without self-citations. of Science, of Science, No Customisable Google Google Scholar Scholar Citations per publication The average number of citations received by an author per SciVal, Web SciVal, Web No Customisable publication. of Science of Science Field-weighted citation Measure of citations received by an author’s publications relative impact (FWCI) to the world average of citations received by publications of similar type, year of publication, and research field. An FWCI of SciVal SciVal Yes Customisable 1.00 indicates that the author’s publications have been cited as expected based on the global average.

Category-normalised Number of citations received compared to the expected citation Web of citation impact (CNCI) rate of publications of similar document type, publication year, Science, InCites Yes Customisable and subject area. A CNCI of 1.00 indicates citation performance InCites at par with world average. H-Index Measure of the whole-career productivity and impact of an Scopus, Web Scopus, Web author’s publications based on the total number of publications of Science, of Science, No Whole career and citations received per publication. Google Google Scholar Scholar H5- Index The h-index calculated for the past 5 years, rather than a whole career. Scopus SciVal No 5 years

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Publications in top Percentage of outputs in the most-cited journals, ranked by percentiles most-cited journal-level metrics such as Source-Normalized Impact Per Paper journals or SCImago Journal Rank. Can be calculated based on the top SciVal SciVal No Customisable 1%, 5%, 10% or 25% percentiles. International The volume of an author’s scholarly output that features collaboration international collaboration, calculated from co-author affiliations. SciVal SciVal No Customisable i10-Index Number of an author’s publications with at least 10 citations. Whole Google Google No career, last 5 Scholar Scholar years

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Journal-Level Metrics Rankings based on these metrics can be used to compare journals. Data Field- Metric Brief Description Access via Timeframe Source(s) Weighted* Journal The number of citations to the journal within the most recent Journal Journal (JIF) reported year to items published in the previous two years, Citation Citation divided by the number of citable items in the previous two years. Reports, No 3 years Reports (Web Web of of Science) Science SCImago Journal Rank Calculated based on both the number of citations to the journal Scopus, (SJR) and a measure of prestige of citing publications. SCImago Scopus Yes 4 years Journal and Country Rank Source Normalized A ratio of a citation per paper calculation and the expected Impact Per Paper (SNIP) number of citations for the journal. Scopus Scopus Yes 4 years

CiteScore Elsevier metric calculated from the number of citations received within one year to documents published in the previous three Scopus Scopus No 4 years years.

Eigenfactor Score Calculated from the number of citations to items from the past five Journal Journal years in the most recent year, accounting for the citation rates of Citation Citation Yes 6 years citing journals. Reports (Web Reports of Science) 5-Year Impact Factor The number of citations to the journal within the most recent Journal Journal reported year to items published in the previous two years, Citation Citation divided by the number of citable items in the previous five years. Reports, No 5 years Reports (Web Web of of Science) Science % Documents Cited The percentage of a journal’s publications that have been cited at least once. InCites InCites No Customisable

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