Support of an Item Set

Properties2

Type	Concept
Note created	Feb 17, 2025

The support of an item set is defined as the number of total transactions that include a given item set. When working with association rules, the support of the given rule is computed as the support of the union for both the antecedent and the consequents set, as per:

$$\text{support}(A\to C)=\text{support}(A\cup C)$$