Study of Distributed Index Mechanism of Geospatial Data
Liang Wu · Microelectronics & Computer · 2007
Based on the analysis of all kinds of geospatial data index, this paper has studied the key technologies of building high efficiency index mechanism of massive geospatial data in the network circumstance and improved the classical R- structure. Based on the R-Tree and hash table, this paper brings up a distributed parallel index tree (DPR-H) structure oriented massive geospatial data in the distributed network circumstance. The DPR-H tree index makes full use of the good qualities of R-Tree and hash data structure. According to the result of the simulated test, the distributed index mechanism can enhance the searching performance of the massive geospatial data effectively in the distributed network circumstance.