• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

J4 ›› 2006, Vol. 28 ›› Issue (10): 92-94.

• 论文 • 上一篇    下一篇

金字塔多维索引分析及其算法实现

吴永英 张吉根 李晨阳   

  • 出版日期:2006-10-01 发布日期:2010-05-20

  • Online:2006-10-01 Published:2010-05-20

摘要:

许多多维索引结构随着维度的增加会遇到“维度灾难”问题,而金字塔技术是基于一种依赖特殊优化数据维度的非平均分割策略,能够克服“维度灾难”问题。本文提出了基于金字塔技术的完整算法集,并针对完备高维索引算法,对金字塔索引技术的性能特性进行了深入分析。

关键词: 金字塔技术 范围查询 k近邻查询

Abstract:

Most multidimensional indexing structures suffer from the "curse of dimensionality" problem because of the dimension growth. The Pyramid-Technique i s based on a special partitioning strategy which is optimized for multidimensional data, and can overcome the "curse of dimensionality" problem. This  paper provides a full set of algorithms based on the Pyramid-Technique, and deeply analyzes the performance characteristics of the Pyramid-Technique

Key words:  (pyramid-technique, range search, kNN)