June 2020
Intermediate to advanced
382 pages
11h 39m
English
Content preview from 40 Algorithms Every Programmer Should Know
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Apriori Algorithm
The apriori algorithm is an iterative and multiphase algorithm used to generate association rules. It is based on a generation-and-test approach.
Before executing the apriori algorithm, we need to define two variables: supportthreshold and Confidencethreshold.
The algorithm consists of the following two phases:
Candidate-generation phase: It generates the candidate itemsets, which contain sets of all itemsets above supportthreshold.
Filter phase: It filters out all rules below the expected confidencethreshold.
After filtering, the resulting rules are the answer.
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