Frequent Itemsets and Association rules Association Rules The market-Basket model A large set of items, e.g things sold in a supermarket A large set of baskets, each of which is a small set of the items, e.g the things one customer buys on one day WD Items Bread. Coke. Milk Beer bread Beer, Coke, Diaper, Milk Beer Bread, Diaper. Milk Coke, Diaper. MilkFrequent Itemsets and Association Rules 3 The Market-Basket Model ▪ A large set of items, e.g., things sold in a supermarket. ▪ A large set of baskets, each of which is a small set of the items, e.g., the things one customer buys on one day. Association Rules