Simulations of dynamic sequential search algorithms

  • Authors:
  • Aaron Tenenbaum

  • Affiliations:
  • Brooklyn College, Brooklyn, NY

  • Venue:
  • Communications of the ACM
  • Year:
  • 1978

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Abstract

In [3], R.L. Rivest presents a set of methods for dynamically reordering a sequential list containing N records in order to increase search efficiency. The method Ai (for i between 1 and N) performs the following operation each time that a record R has been successfully retrieved: Move R forward i positions in the list, or to the front of the list if it was in a position less than i. The method A1 is called the transposition method, and the method AN-1 is called the move-to-front method.