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Mining item-item and between-set correlated association rules |
Bin Shen1, Min Yao*,2, Li-jun Xie3, Rong Zhu2, Yun-ting Tang1 |
1 Ningbo Institute of Technology, Zhejiang University, Ningbo 315100, China 2 School of Computer Science and Technology, Zhejiang University, Hangzhou 310027, China 3 Center for Engineering & Scientific Computation, School of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310027, China |
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Abstract To overcome the failure in eliminating suspicious patterns or association rules existing in traditional association rules mining, we propose a novel method to mine item-item and between-set correlated association rules. First, we present three measurements: the association, correlation, and item-set correlation measurements. In the association measurement, the all-confidence measure is used to filter suspicious cross-support patterns, while the all-item-confidence measure is applied in the correlation measurement to eliminate spurious association rules that contain negatively correlated items. Then, we define the item-set correlation measurement and show its corresponding properties. By using this measurement, spurious association rules in which the antecedent and consequent item-sets are negatively correlated can be eliminated. Finally, we propose item-item and between-set correlated association rules and two mining algorithms, I&ISCoMine_AP and I&ISCoMine_CT. Experimental results with synthetic and real retail datasets show that the proposed method is effective and valid.
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Received: 19 November 2009
Published: 08 February 2011
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Mining item-item and between-set correlated association rules
To overcome the failure in eliminating suspicious patterns or association rules existing in traditional association rules mining, we propose a novel method to mine item-item and between-set correlated association rules. First, we present three measurements: the association, correlation, and item-set correlation measurements. In the association measurement, the all-confidence measure is used to filter suspicious cross-support patterns, while the all-item-confidence measure is applied in the correlation measurement to eliminate spurious association rules that contain negatively correlated items. Then, we define the item-set correlation measurement and show its corresponding properties. By using this measurement, spurious association rules in which the antecedent and consequent item-sets are negatively correlated can be eliminated. Finally, we propose item-item and between-set correlated association rules and two mining algorithms, I&ISCoMine_AP and I&ISCoMine_CT. Experimental results with synthetic and real retail datasets show that the proposed method is effective and valid.
关键词:
Item-item and between-set correlated association rules,
All-confidence,
All-item-confidence,
Item-set correlation,
Mining algorithms,
Pruning effect
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