Support & Confidence

What is Support & Confidence?

Support is the frequency of an itemset. Confidence is the reliability of the rule (Given A, how often B?). Together they define strong rules.

Where did the term "Support & Confidence" come from?

Core metrics for Association Rules.

How is "Support & Confidence" used today?

Used to filter out noise in transaction data.

Related Terms

• Association Rule Learning
• Lift