Individual displacements for linear probing hashing with different insertion policies

  • Authors:
  • Svante Janson

  • Affiliations:
  • Uppsala University, Uppsala, Sweden

  • Venue:
  • ACM Transactions on Algorithms (TALG)
  • Year:
  • 2005

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Abstract

We study the distribution of the individual displacements in hashing with linear probing for three different versions: First Come, Last Come and Robin Hood. Asymptotic distributions and their moments are found when the the size of the hash table tends to infinity with the proportion of occupied cells converging to some α, 0 m and n can be obtained from the limits as m,n → ∞.We end with some results, conjectures and questions about the shape of the limit distributions. These have some relevance for computer applications.