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Vertical data format is an important structure in closed frequent itemsets mining. All closed frequent itemsets can be found by simply using the operations of "and" and "or". But it consumes huge amount of storage space, especially in the case of large size data set. This paper proposed an algorithm for mining closed frequent itemsets based on a new data structure deriving from...
This paper introduces an incremental closed frequent item sets mining algorithm, which is based on a shadow prefix tree to get closed frequent item sets. By the use of shadow technology this algorithm can avoid the cost of generating and testing of candidate subsets. Shadow prefix tree can find nodes by virtual node without generating all nodes. The experiment results show that this algorithm can...
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