[PDF] association rule mining example problems

Enumerate all the final frequent itemsets. Also indicate the association rules that are generated and highlight the strong ones, sort them by confidence.Autres questions
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  • What is a solved example of association rule mining?

    Association rules: {HotDogs, Buns} would generate: HotDogs ? Buns (2/6=0.33, 2/4=0.5) and Buns ? HotDogs (2/6=0.33, 2/2=1); {HotDogs, Coke} would generate: HotDogs ? Coke (0.33, 0.5) and Coke ? HotDogs (2/6=0.33, 2/3=0.66);

  • What is an example of association rule mining?

    A common example for association rule mining is basket analysis. A shopper puts items from a store into a basket. Once there are some items in the basket, it is possible to recommend associated items that are available in the store to the shopper.

  • What is an example of support and confidence?

    Support says that 67% of customers purchased milk and cheese. Confidence is that 100% of the customers that bought milk also bought cheese. Lift represents the 28% increase in expectation that someone will buy cheese, when we know that they bought milk.

  • An example of Association Rules

    1Assume there are 100 customers.210 of them bought milk, 8 bought butter and 6 bought both of them.3bought milk => bought butter.4support = P(Milk & Butter) = 6/100 = 0.06.5confidence = support/P(Butter) = 0.06/0.08 = 0.75.6lift = confidence/P(Milk) = 0.75/0.10 = 7.5.
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