Low distortion embeddings for edit distance

  • Authors:
  • Rafail Ostrovsky;Yuval Rabani

  • Affiliations:
  • University of California, Los Angeles, Los Angeles, California;Technion—Israel Institute of Technology, Haifa, Israel

  • Venue:
  • Journal of the ACM (JACM)
  • Year:
  • 2007

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Abstract

We show that {0, 1}d endowed with edit distance embeds into ℓ1 with distortion 2O(&sqrt;log d log log d). We further show efficient implementation of the embedding that yield solutions to various computational problems involving edit distance. These include sketching, communication complexity, nearest neighbor search. For all these problems, we improve upon previous bounds.