par Iacono, John 
Référence Lecture notes in computer science, 8066, page (236-250)
Publication Publié, 2013
Référence Lecture notes in computer science, 8066, page (236-250)
Publication Publié, 2013
Article révisé par les pairs
| Résumé : | In 1985, Sleator and Tarjan introduced the splay tree, a self-adjusting binary search tree algorithm. Splay trees were conjectured to perform within a constant factor as any offline rotation-based search tree algorithm on every sufficiently long sequence - any binary search tree algorithm that has this property is said to be dynamically optimal. However, currently neither splay trees nor any other tree algorithm is known to be dynamically optimal. Here we survey the progress that has been made in the almost thirty years since the conjecture was first formulated, and present a binary search tree algorithm that is dynamically optimal if any binary search tree algorithm is dynamically optimal. © Springer-Verlag 2013. |
