PATTERN MINING METHOD, HIGH-UTILITY ITEM-SET MINING METHOD AND RELEVANT DEVICE

摘要

Disclosed are a pattern mining method, a high-utility item-set mining method and a relevant device. According to the pattern mining method and the relevant device, by combining two mining factors, namely, a time relation and a utility value, utility values of a mined pattern are enabled to be distributed uniformly in time, and a mining result is more accurate. According to the high-utility item-set mining method and the relevant device, the minimum lowest utility threshold value corresponding to data items contained in each item set is taken as a lowest item-set utility threshold value of each item set, so that the determined lowest item-set utility threshold values corresponding to item sets are closer to the lowest utility condition of the item sets, and accordingly, item-set utility values of item sets are compared with the lowest item-set utility threshold values corresponding to the item sets, thus improving the accuracy of high-utility item-set mining.