Dimension reduction for ultrametrics

  • Authors:
  • Yair Bartal;Manor Mendel

  • Affiliations:
  • The Hebrew University, Jerusalem;The Hebrew University, Jerusalem

  • Venue:
  • SODA '04 Proceedings of the fifteenth annual ACM-SIAM symposium on Discrete algorithms
  • Year:
  • 2004

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Abstract

We prove that an ultrametric on n points can be embedded in ldp with distortion at most 1 + ε, and d = O(ε-2 log n). This bound matches the best known bound for the special case of an equilateral space.