Question

After mining some shopping basket dataset, you find that rule “cereal ? milk” has higher confidence than “milk ? cereal”. Based on this fact, which of the following is true? Explain.

Support(milk) = Support(cereal)

Support(milk) > Support(cereal)

Support(milk) < Support(cereal)

Not enough information, i.e., it could be either =, >, or <, depending on the specific dataset.

Consider two association rules mined from some shopping basket dataset: “cereal ? milk” and “cereal, cookies ? milk”. Which of the following is true about the support of these rules? Explain.

Support(cereal ? milk) ? Support(cereal, cookies ? milk)

Support(cereal ? milk) ? Support(cereal, cookies ? milk)

Not enough information, i.e., it could be either ? or ?, depending on the specific dataset.

Consider two association rules mined from some shopping basket dataset: “cereal ? milk” and“cereal ? milk, yogurt”. Which of the following is true about the confidence of these rules? Explain.

Confidence(cereal ? milk) ? Confidence(cereal ? milk, yogurt)

Confidence(cereal ? milk) ? Confidence(cereal ? milk, yogurt)

Not enough information, i.e., it could be either ? or ?, depending on the specific dataset.

Consider two association rules mined from some shopping basket dataset: “cereal ? milk” and “milk ? cereal”. Which of the following is true about the lift of these rules? Explain.

Lift(cereal ? milk) = Lift(milk ? cereal).

Lift(cereal ? milk) ? Lift(milk ? cereal).

Not enough information, i.e., it can be either of the above, depending on the specific dataset.

Answer 1

- "cereal ? milk" has the higher condidance than " milk ? Cereal " . the reason behind this fact is the eating habits of the people as majority of the peoples prefer to take cereals with milk. Here milk is the main or target product that customer usually purchases but a good approach or a marketing strategy to make customer add cereals also to their basket.

- here in above case, to my opinion "SUPPORT ( MILK) = SUPPORT ( CEREAL )" is very true.

Because as we know that customer is there to purchase milk so obviously & ultimately he will make purchase of that & also that is his need so we do not require to pursuade him to buy the milk.

- Need = Milk.

- Want ( to be generated ) = Cereals.

* Hence, we cannot say that the one product is important over the other one because this will violate the law of marketing or will incur a loss.

- By giving both the products an equal importance and manking customer realize that the milk without the Cereals is an incomplete nutritional diet and he/she must take both together for the good health.

2. Support ( Cereal ? Milk ) ? Support ( Cereal, Cookies ? Milk )

- from the above relationship it is clear that Milk is a target product, here we have to pursuade customer to buy cereals and cookies also with milk but if the customer refused to buy both of these then we have at least them make to buy him cereal with the milk with reference to 1st case.