【摘要】 随着地理数据量的不断增大,传统的空间数据库已经无法满足实际应用的需要。为此,该文围绕矢量数据的Top-K频繁关键字问题,设计了一个分布式空间数据库系统。主要内容为分布式矢量数据存储模型设计,基于Hilbert排列码的矢量数据划分策略,分布式空间数据的索引结构以及索引算法设计。更多还原

【Abstract】 With the increasing amount of geographic data,the traditional spatial database has been unable to meet the needs of practical application. For this reason,this paper designs a distributed spatial database system around Top-K frequent keyword of vector data. The main contents are the design of distributed vector data storage model,vector data partition strategy based on Hilbert permutation code,index structure of distributed spatial data and index algorithm design.更多还原