Note: Fast set intersection and two-patterns matching

  • Authors:
  • Hagai Cohen;Ely Porat

  • Affiliations:
  • Department of Computer Science, Bar-Ilan University, 52900 Ramat-Gan, Israel;Department of Computer Science, Bar-Ilan University, 52900 Ramat-Gan, Israel

  • Venue:
  • Theoretical Computer Science
  • Year:
  • 2010

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Abstract

In this paper we present a new problem, the fast set intersection problem, which is to preprocess a collection of sets in order to efficiently report the intersection of any two sets in the collection. In addition we suggest new solutions for the two-dimensional substring indexing problem and the document listing problem for two patterns by reduction to the fast set intersection problem.