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Notice of Retraction
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE's Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
New algorithm of mining frequent closed pattern about distributed data stream was proposed. The algorithm bases on the three-layer structure model. First, the leaf-layer nodes overlap the collecting item-sets. Second, the middle A-layer nodes expurgate the infrequent items of overlapped items again and again, and then insert them into prefix-sub-tree. Third, the top-layer nodes and the middle-layer ones answer the clients' request online in feedback way. Analysis and experimental results indicate: This algorithm really resolves the heavy workload between layers and has favorable application prospect.