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Hash and Displace: Efficient Evaluation of Minimal Perfect Hash Functions

  • Rasmus Pagh
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1663)

Abstract

A new way of constructing (minimal) perfect hash functions is described. The technique considerably reduces the overhead associated with resolving buckets in two-level hashing schemes. Two memory probes suffice for evaluation of the function. This improves the probe performance of previous minimal perfect hashing schemes, and is shown to be optimal.

Keywords

Hash Function Universal Classis Memory Probe Space Consumption Addition Modulo 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1999

Authors and Affiliations

  • Rasmus Pagh
    • 1
  1. 1.BRICS, Department of Computer ScienceUniversity of AarhusAarhus CDenmark

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