Fast index for approximate string matching

  • Authors:
  • Dekel Tsur

  • Affiliations:
  • Department of Computer Science, Ben-Gurion University of the Negev, Israel

  • Venue:
  • Journal of Discrete Algorithms
  • Year:
  • 2010

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Abstract

We present an index that stores a text of length n such that given a pattern of length m, all the substrings of the text that are within Hamming distance (or edit distance) at most k from the pattern are reported in O(m+loglogn+#matches) time (for constant k). The space complexity of the index is O(n^1^+^@e) for any constant @e0.