Title
Stochastic Rearrangement Rules for Self-Organizing Data Structures
Abstract
We consider self-organizing data structures when the number of data accesses is unknown. We show that certain general rearrangement rules can be modified to reduce significantly the number of data moves, without affecting the asymptotic cost of a data access. As a special case, explicit formulae are given for the expected cost of a data access and the expected number of data moves for the modified move-to-front rules for linear lists and binary trees. Since a data move usually costs at least as much as a data access, the modified rule eventually leads to a savings in total cost (the sum of data accesses and moves).
Year
DOI
Venue
1991
10.1007/BF01759046
Algorithmica
Keywords
Field
DocType
Self-organizing data structures,Move-to-front heuristic
Data structure,Explicit formulae,Combinatorics,Computer science,Binary tree,Theoretical computer science,Expected value,Expected cost,Data access,Total cost,Special case
Journal
Volume
Issue
ISSN
6
2
0178-4617
Citations 
PageRank 
References 
4
0.55
8
Authors
2
Name
Order
Citations
PageRank
Sanjiv Kapoor140.55
Edward M. Reingold22214563.65