Parallel Bulk-Loading of Spatial Data with MapReduce

来源 :2011年全国理论计算机科学学术年会 | 被引量 : 0次 | 上传用户:tang18
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Bulk-loading of spatial data is the process of constructing a spatial index from scratch.Due to the large size and complexity of spatial data,parallel bulk-loading of spatial data has the shortage that the quality of spatial index decrease considerably as the parallelism increases.
其他文献
The development of cathode materials with large capacity and good rate performance is of particular importance in improving the overall performance of a battery system.In order to improve these perfor
会议
Recently,the possible applications of large-scale lithium ion batteries for the backup of power systems and hybrid electric vehicles (HEV) have been extensively studied.However,it is difficult to use
会议
For room temperature toxic gas sensing,a system chip with a MWCNTs (multiwalled carbon nanotubes)-assisted array of 30 sensors (2 sensors for each of 15 sensor types) was successfully developed.The te
This study prepared aluminum and gallium co-doped zinc oxide (AGZO) thin films using pulsed direct current magnetron sputtering,and studied the electrical properties,transmittance,effects of texturing
会议
The pure titanium(TA2),Ti6Al4V,Ti6Al7Nb treated by ammonia gas (NH3) plasma immersion ion implantation-deposition (PIII-D) is investigated.On a torsional fretting wear test rig,the torsional fretting
会议
会议
Nanocomposite Cr-W-B-N coatings with various tungsten contents were synthesized on silicon wafer substrates.The used technique is a DC reactive magnetron co-sputtering deposition equipped with a Cr-B
会议
会议