17th International Workshop on Database and Expert Systems Applications (DEXA'06) (2006)
Sept. 4, 2006 to Sept. 8, 2006
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/DEXA.2006.117
Wee Hyong Tok , National University of Singapore
Stephane Bressan , National University of Singapore
One of the main challenges of large-scale information mediation and warehousing is the efficient and resourceeffective processing of continuous queries. Continuous queries monitor streams of incoming data and produce results on-the-fly. They are usually long-running, yet need to be removed from the system when they become obsolete. We present a framework and the corresponding algorithms and data-structures for the efficient evaluation of multiple longrunning spatial queries over unbounded streams of spatial data and the management of obsolete queries. Using both real-life and synthetic datasets and workloads, we show that our proposed approach achieves significant improvements over standard approaches.
W. H. Tok and S. Bressan, "Processing of Multiple Long-Running Queries in LargeScale Geo-Data Repositories," 17th International Workshop on Database and Expert Systems Applications (DEXA'06)(DEXA), Krakow, Poland, 2006, pp. 627-631.