In this paper, we propose an efficient algorithm, called ICMiner (Inter-transaction Closed patterns Miner), for mining closed inter-transaction itemsets. Our proposed algorithm consists of two phases. First, we scan the database once to find the frequent items. For each frequent item found, the ICMiner converts the original transaction database into a set of domain attributes, called a dataset. Then, it enumerates closed inter-transaction itemsets using an itemset
Anthony J. T. Lee, Chun-sheng Wang, Wan-Yu Weng, Y