Apriori Algorithm
Apriori finds items that often appear together.
What it does
Apriori finds items that often appear together.
Association Rule: If X, then Y • Market Basket: Studying what people buy
How it works
- Count how often each item appears.
- Count which pairs appear together.
- Keep the pairs that happen often enough.
Uses & Applications
- Amazon can recommend batteries when people buy a toy that needs batteries.
- A grocery store can place bread and butter near each other.
- A library can suggest books often borrowed together.
In short
It finds basket patterns, like items people buy together.
Try it yourself
Find foods people buy together
Look through six pretend shopping baskets for items that often appear together.
Your turn
Change one setting at a time. Reset example puts everything back.
Count an association rule
Step 1Why this happens