251 search results - page 27 / 51 » Processing Multiple Aggregation Queries in Geo-Sensor Networ... |
ADVIS
2006
Springer
14 years 2 months ago
2006
Springer
Recently many researchers have focused on management of historical trajectories of moving objects due to numerous size of accumulated data over time. However, most of them are conc...
ICLP
2007
Springer
14 years 2 months ago
2007
Springer
This paper describes the dlvhex SPARQL plugin, a query processor for the upcoming Semantic Web query language standard by W3C. We report on the implementation of this languages usi...
SIGMOD
2001
ACM
14 years 8 months ago
2001
ACM
Materialized views can provide massive improvements in query processing time, especially for aggregation queries over large tables. To realize this potential, the query optimizer ...
CORR
2004
Springer
13 years 8 months ago
2004
Springer
Analyzing and controlling large distributed services under a wide range of conditions is difficult. Yet these capabilities are essential to a number of important development and o...
CIKM
2004
Springer
14 years 1 months ago
2004
Springer
Peer-to-peer Data Networks (PDNs) are large-scale, selforganizing, distributed query processing systems. Familiar examples of PDN are peer-to-peer file-sharing networks, which su...