用于本地化搜索的avl树

Q4 Mathematics 信息与控制 Pub Date : 1985-10-01 DOI:10.1016/S0019-9958(85)80034-6

Athanasios K. Tsakalidis

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引用次数: 0

摘要

我们提出了一种基于avl树的数据结构，它允许在时间O(log d)内执行插入或删除，其中d是从指向文件末尾的手指搜索位置的距离。将手指移动到距离d需要花费O(log d)。这个结果展示了最古老的基本数据结构avl树的强大功能。我们感兴趣的一个特殊情况是可搜索优先级队列的有效实现，这样Deletemin只需要恒定的时间。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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AVL-trees for localized search

We present a data structure based on AVL-trees which allows an insertion or a deletion to be performed in time O(log d), where d is the distance of the position searched for from a finger which points to the end of the file. Moving a finger to a distance d costs O(log d). This result demonstrates the power of the oldest basic data structure, the AVL-tree. A special case of interest is an efficient implementation of searchable priority queues such that Deletemin requires only constant time.

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