An efficient algorithm for mining frequent inter-transaction patterns

作者：Lee Anthony J T^*; Wang Chun Sheng

来源：Information Sciences, 2007, 177(17): 3453-3476.

DOI：10.1016/j.ins.2007.03.007

• association rules
• data mining
• inter-transaction patterns

In this paper, we propose an efficient method for mining all frequent inter-transaction patterns. The method consists of two phases. First. we devise two data structures: a dat-list, which stores the item information used to find frequent inter-transaction patterns: and an ITP-tree, which stores the discovered frequent inter-transaction patterns. In the second phase, we apply an algorithm, called ITP-Miner (Inter-Transaction Patterns Miner), to mine all frequent inter-transaction patterns. By using the ITP-tree, the algorithm requires only one database scan and can localize joining, pruning, and support counting to a small number of dat-lists. The experiment results show that the ITP-Miner algorithm outperforms the FITI (First Intra Then Inter) algorithm by one order of magnitude.

• 出版日期2007-9-1