In association rule mining what does a high lift value...

Name: in association rule mining what does a high lift value indicate about an association rule question 24answer a the rule occurs very infrequently b the rule is independent of item occurrence c 03522
Uploaded: 2024-05-13T17:16:21-08:00
Duration: 7 min 31 s
Channel: Shu Naito
Description: in association rule mining what does a high lift value indicate about an association rule question 24answer a the rule occurs very infrequently b the rule is independent of item occurrence c 03522

In Association Rule Mining, what does a high Lift value indicate about an association rule? Question 24Answer a. The rule occurs very infrequently. b. The rule is independent of item occurrence. c. The rule has a strong association between items. d. The rule occurs exactly as expected.

Transcript

00:01 We're gonna answer from a.

00:02 So the top rule, if a customer buys a votura cooking book, then they buy a cooking book.

00:09 It's not helpful despite its large lift and 100 % confidence because it is tautological.

00:28 So this rule states something that is inherently obvious.

00:33 Massimo votura's cooking books are a subset of cooking books in general.

00:37 So, anyone who purchases a botchura cooking book is, by definition, also purchasing a cooking book.

00:45 And this rule does not provide any new or actionable insights into customer behavior that could be used to drive marketing strategies or inventory decisions.

00:57 B.

01:03 So, as for the confidence, so this percentage represents the probability that a customer will buy an art book given that they have already bought both a cooking book and a biography.

01:26 And it indicates that just over half of the customers who buy both cooking and biography books also buy an art book.

01:38 And as for lift ratio, we have 2 .20.

01:45 So this value shows how much more more likely customers are to buy art books when they have bought both cooking and biography books, compared to the likelihood of buying art books without this condition.

01:58 Now, a lift ratio of 2 .20 means that the occurrence of this buying pattern is 2 .2 times more likely than random chance, which suggests a significant association between these categories.

02:12 For c, so from analyzing the top 10 rules, lagers can glean some general insights about the interrelated interests of their customers.

02:37 First, customers who buy in certain thematic categories, like cooking or biographies, tend to buy books in related thematic categories, like art books...

Question

In Association Rule Mining, what does a high Lift value indicate about an association rule? Question 24Answer a. The rule occurs very infrequently. b. The rule is independent of item occurrence. c. The rule has a strong association between items. d. The rule occurs exactly as expected.

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