Using a projection-based approach to mine frequent inter-transaction patterns

  • Authors:
  • Chun-Sheng Wang;Kuo-Chung Chu

  • Affiliations:
  • Department of Information Management, Jinwen University of Science and Technology, No. 99, An-Chung Road, Hsin-Tien, Dist. New Taipei City, Taiwan, ROC;Department of Information Management, National Taipei University of Nursing and Health Sciences, No. 365, Min-Te Road, Taipei, Taiwan, ROC

  • Venue:
  • Expert Systems with Applications: An International Journal
  • Year:
  • 2011

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Abstract

In this paper, we propose an algorithm called PITP-Miner that utilizes a projection based approach to mine frequent inter-transaction patterns efficiently. The algorithm only searches for local frequent items in a projected database that stores potential local inter-transaction items and partitions the database into a set of smaller databases recursively. In addition, two pruning strategies are designed to further condense the partitioned databases and thus accelerate the algorithm. Our experiment results demonstrate that the proposed PITP-Miner algorithm outperforms the ITP-Miner and FITI algorithms in most cases.