Score is an attempt to compare projects by multiple parameters. It considers a content size, community greatness and a popularity among readers.
Currently score is defined as:
,
where
,
,
,
is a number of articles of the project, is a total edit number of the project, is a number of active users of the project, is a total user number of the project, is a total views of the project during the last year. describes the same parameter of a leading project (usually, English Wikipedia). So, the score calculates a difference between the project and the leading project.
For example, the score of German Wikipedia is calculated as: