Question

explain about maximal patterns and closed patterns​

Answer 1

Answer:

X is said to be a max-pattern if X is a frequent pattern and there exists no frequent super pattern Y (where Y is a super set of X). On the other hand, X is said to be a closed-pattern if X is frequent and there exits no super pattern Y (where Y is a super set of X) with the same support as X.

Answer 2

In frequent itemset mining:

• X is said to be a max-pattern if X is a frequent pattern and there exists no frequent super pattern Y (where Y is a super set of X). Max Patterns are lossy forms of compression as the underlying support information is lost.

• On the other hand, X is said to be a closed-pattern if X is frequent and there exits no super pattern Y (where Y is a super set of X) with the same support as X. Closed Patterns are lossless forms of compression, as the support information is stored within the pattern.

explanation:

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