Correlation Value (Association Rules)

When applying (in data or text mining) algorithms for deriving association rules of the general form If Body then Head (e.g., If (Car=Porsche and Age<20) then (Risk=High and Insurance=High)), a Correlation value can be computed as the support value for the rule, divided by the square root of the product of the support values for the Body and Head computed separately.

See also the Introductory Overview for Association Rules.