High qualified pattern mining method and apparatus, and data processing device

A high qualified pattern item set mining apparatus comprising:

• at least one memory configured to store computer program code;
• and
• at least one processor configured to access the at least one memory and operate according to the computer program code, the computer program code comprising:
• first determination code configured to cause the at least one processor to determine a support degree of an item set to be processed in a transaction database;
• second determination code configured to cause the at least one processor to determine a weight occupancy of the item set to be processed in the transaction database;
• and
• third determination code configured to cause the at least one processor to determine that the item set to be processed is a high qualified pattern based on the support degree not being less than a product of a preset lowest support degree threshold value and a total number of transactions in the transaction database, and the weight occupancy not being less than a preset minimum weight occupancy threshold value.

A non-transitory computer-readable storage medium storing instructions that cause at least one processor to:

• determine a support degree of an item set to be processed in a transaction database;
• determine a weight occupancy of the item set to be processed in the transaction database;
• and
• determine that the item set to be processed is a high qualified pattern based on the support degree not being less than a product of a preset lowest support degree threshold value and a total number of transactions in the transaction database, and the weight occupancy not being less than a preset minimum weight occupancy threshold value.