南京林业大学学报(自然科学版) ›› 2008, Vol. 32 ›› Issue (05): 115-118.doi: 10.3969/j.jssn.1000-2006.2008.05.023

• 研究论文 • 上一篇    下一篇

基于B+树的复杂生态信息存储结构模型

赵庆建,温作民   

  1. 南京林业大学经济管理学院, 江苏 南京 210037
  • 出版日期:2008-10-18 发布日期:2008-10-18

Storage structure model of complex ecological information based on Btree

ZHAO Qing-jian, WEN Zuo-min   

  1. College of Eeonmnics and Management Nanjing Forestry University, Nanjing 210037, China
  • Online:2008-10-18 Published:2008-10-18

摘要: <正>随着居民出行需求的多样化,从城市可持续发展的角度出发,构造了交通方式对城市可持续发展的评价模型,确定交通方式对城市可持续发展各方面的影响指标,如城市GDP增长、房地产开发、服务行业发展等,运用层次分析法对各交通方式影响城市发展的程度进行了综合评价,结合了评价结果,以城市可持续发展最大效率为目标,以城市交通需求、道路系统容量、环境容量等因素为约束条件建立了交通方式结构优化模型,并以苏州市为例,提出促进其发展的合理客运交通方式结构。

Abstract: For the problems of the storage and mauagemeut of complex ecological information, a multi-dimensional hierarchical aggregation cube (MH_Cube) model based on B+tree was proposed. A multi-dimensional hierarchical B+tree was set up from a d dimension space with binary codes to realize quick query, data update and pattern update algorithms. Compared to the coonveutional cubes, MH_ Cube exhibited better performance. The ecological data experiments showed that the model provided a good solution to the problems of the storage and management of colnplex ecodogical information.

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