Complexity analysis of depth first and FP-growth implementations of APRIORI

  • Authors:
  • Walter A. Kosters;Wim Pijls;Viara Popova

  • Affiliations:
  • Leiden Institute of Advanced Computer Science, Universiteit Leiden, Leiden, The Netherlands;Department of Computer Science, Erasmus University, Rotterdam, The Netherlands;Department of Computer Science, Erasmus University, Rotterdam, The Netherlands

  • Venue:
  • MLDM'03 Proceedings of the 3rd international conference on Machine learning and data mining in pattern recognition
  • Year:
  • 2003

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Abstract

We examine the complexity of Depth First and FP-growth implementations of Apriori, two of the fastest known data mining algorithms to find frequent itemsets in large databases. We describe the algorithms in a similar style, derive theoretical formulas, and provide experiments on both synthetic and real life data to illustrate the theory.