Metrics and indicators

Which indicators are used in Dimensions, and how can these be viewed?
The following indicators are used with publications and other content types in Dimensions: The publication citations value is the number of times that...
What is the FCR? How is it calculated?
The Field Citation Ratio (FCR) is a citation-based measure of scientific influence of one or more articles. It is calculated by dividing the number of...
What is the RCR? How is the RCR score calculated?
The Relative Citation Ratio (RCR) is a citation-based measure of scientific influence of a publication. It is calculated by the National Institutes of...
What are 'publication citations'?
'Publication citations' refers to the number of times that a publication has been cited by other publications in the Dimensions database. (Publication...
What are Recent Citations?
The recent citations value is the number of citations that were received in the last two calendar years.
Where are citations in Dimensions coming from?
Dimensions is extracting references between publications either from existing databases (such as  Crossref ,  PubMed Central , or  OpenCitations data...
Why don’t all publications have citation counts, RCR, FCR or Altmetric attention scores?
Not all publications in Dimensions will have all three metric scores associated with them. The reasons for this vary with each metric: If a publicatio...
Why might there be variations in citations and RCR score with other platforms?
Citation differences will always be seen between any two platforms, as these depend on the content of the databases in question, as well as the compar...
Will journal impact factors be added to Dimensions?
Dimensions does not include journal impact factors, but instead uses article-level metrics. The journal impact factor (JIF) of an academic journal is ...
What is Altmetric?
Altmetric is a part of the Digital Science group. Altmetric allows users to track and measure activity around academic research, pulling patterns and ...
How is the Altmetric Attention Score calculated?
The Altmetric Attention Score is a value that indicates the amount of attention received by an article across the internet. Sources that are being tra...
"View in Altmetric Explorer" - Searching the Altmetric database using Dimensions
Users of Dimensions Plus or Dimensions Analytics who also have access to Altmetric Explorer are able to export the results of a publications search in...
What is the Dimensions Metrics API?
The Metrics API is an openly available API which returns a limited set of article-level metrics (see below) based on an input set of identifiers. The ...