Spatial Resource Sharing Method Using Pane in u-GIS Environment
When executing the continuous aggregation query to process data stream, resource sharing method have been researched in order to save memory and to avoid duplicating operation. Existing resource sharing methods process data when the predicate equals each query. So the new resource sharing method that can process duplicating range efficiently is required in the u-GIS environment which is often requested multiple spatial aggregation query that has difference between predicate of queries. In this paper, I suggest resource sharing method that can be used in u-GIS. It uses features of R-tree which make group spatial range efficiently and shares resource of duplicate range using the Pane structure. Suggested method can process spatial aggregation query and reduces query processing time and uses less resource compared with existing resource sharing methods. Performance evaluation shows that suggesting method reduces usages of memory and query processing time.
component spatial data stream Pane aggregation query
Min-Ho Seo Soong-Sun Shin Hae-Young Bae Young-Hwan Oh
Computer Science and Information Engineering, Inha University, Republic of Korea Information and Communication, Korea Nazarene University, Republic of Korea
国际会议
重庆
英文
18-20
2010-04-22（万方平台首次上网日期，不代表论文的发表时间）