Discovery of Characteristic Patterns from Transactions with Their Classes

Table 10

A discovery method of characteristic patterns.

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(1) Search transactions and calculate the number of transactions for each class.

(2) Set 𝜙 to an item set Its and set all classes to its pattern class.

(3) Generate a refined FP tree 𝑇 based on the algorithm shown in Table 6.

(4) If 𝑇 is not generated, then this algorithm stops. Otherwise, it discovers characteristic patterns from 𝑇 and Its based on the algorithm shown in Table 9.

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