Research on the Technology of Spatial Index

Spatial index can improve operational efficiency of the spatial database.Research is now more focused on the multi-dimensional spatial data research on the index.In this paper,a comprehensive summary of the current field of spatial database research space indexed and spatiotemporal index by a number of experimental pop-depth analysis of the index structure,describes the construction thinking,node insertion and split operation of the R tree index series,through experiments in-depth analysis the CPU time which the R tree and R tree variants's disk access,insert,delete,update.Verify the case of surge in the data,R tree family index of overlap caused by the complexity of the problem exponentially.As the R tree depth and breadth of the current application,it is an effective way to solve application problems of index that research on the efficient tree-based on R tree high dimensional space-time techniques.Finally proposed to improve the performance of the direction of the index is a combination of a variety of indexing techniques,in particular,the index tree structure network structure and the combination of the index.