摘要
分析已有基于基态修正模型的7种数据存储方式,在此基础上提出基态存储优化的多基态多级差文件修正模型。与已有方法相比,该方法具有节省存储空间,数据检索、恢复效率高,受历史长短影响小,效率受基态阈值影响小等特点。
Analyze seven kinds of existed data stored ways based on base state with amendment,based on this,the author proposed base-states optimized multi-base-states multi-classes-delta file with amendment. Comparing with existed methods,this method has some advantages,such as,save storage space,higher resuming speed of historic data,little influence of the length of history and lower influence of threshold of base state.
出处
《测绘与空间地理信息》
2016年第5期58-60,64,共4页
Geomatics & Spatial Information Technology
基金
国家自然科学基金项目(41301125)资助
关键词
时空数据模型
基态修正时空数据模型
多基态多级差
优化
spatio-temporal data model
base state with amendments model
multi-base-states ＆ multi-classes-deltafile
optimization
