Tencent Technology (shenzhen) Company Limited

Chun-wei Lin

Wei Chen

Lei Xiao

Wensheng Gan

Jiexiong Zhang

A high qualified pattern mining method is provided. The high qualified pattern mining method is performed by one or more processors, and includes determining a support degree of an item set to be processed in a transaction database; determining a weight occupancy of the item to be processed in the transaction database; and determining 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.

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

A pattern mining method includes obtaining, according to each of transactions comprised in a transactional database, a candidate pattern set satisfying a condition, each of the transactions comprising at least one item, each of candidate patterns in the candidate pattern set comprising one or more items in an itemset, calculating a utility of a respective one of the candidate patterns in each of the transactions, determining, among the transactions, at least one target transaction in which the utility reaches a specified utility threshold, determining a target period value of a target candidate pattern corresponding to the at least one target transaction, according to a target time attribute of each of the at least one target transaction, and determining the target candidate pattern as a mining result, based on the target period value of the target candidate pattern being less than or equal to a period threshold.

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Shenzhen, China

Chun-wei Lin