海洋分布式GIS用户访问优化算法研究

Research on optimism of distributed marine database user query algorithm

随着海上GIS数据系统的持续发展,对于海洋地理数据存储提出了新的需求,传统中心化的存储方式逐渐被分布式GIS数据库所替代,这些数据库分别处于不同的海上平台,能够实现大规模的数据交互和集约化的数据处理,显著提高了当前GIS系统的应用能力。然而,海洋分布式GIS数据在查询过程中,需要完成多个数据库之间的数据和消息传递,存在较大的时延,严重降低了海洋GIS系统的运行效率和用户体验。针对以上问题,本文提出了一种基于用户查询行为的海洋分布式GIS动态优化策略,引入数据库查询的效用概念,对GIS数据查询请求进行动态优化,从而能够明显提高分布式GIS系统的运行效率。

With the continuous development of marine GIS data system,the new demand for marine geographic data storage,the traditional centralized storage mode is gradually replaced by the distributed GIS database. These databases are in different offshore platforms,which can realize large-scale data processing and intensive data processing,and significantly improve the application ability of the GIS system. However,in the process of ocean distributed GIS data,it is needed to complete the data and message passing between multiple databases,and there is a big delay,which seriously reduces the operating efficiency and user experience of the marine GIS system. To solve these problems,this paper presents a dynamic optimization strategy based on user query behavior of marine distributed GIS,introduces the concept of the database query,and dynamic optimization of GIS data query requests,which can improve the operating efficiency of the distributed GIS system.