6746 search results - page 596 / 1350 » Multimodal Database Query |
345
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GIS
2003
ACM
16 years 8 months ago
2003
ACM
Nearest neighbor query is one of the most important operations in spatial databases and their application domains, e.g., locationbased services, advanced traveler information syst...
293
Voted
ICDT
2009
ACM
16 years 8 months ago
2009
ACM
Graph-theoretic aggregation problems have been considered both in OLAP (grid graph) and XML (tree). This paper gives new results for MIN aggregation in a tree, where we want the M...
314
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VLDB
2004
ACM
16 years 7 months ago
2004
ACM
In this paper, we propose a new tunable index scheme, called iMinMax(), that maps points in highdimensional spaces to single-dimensional values determined by their maximum or minim...
200
Voted
SIGMOD
2003
ACM
16 years 7 months ago
2003
ACM
We consider an environment where distributed data sources continuously stream updates to a centralized processor that monitors continuous queries over the distributed data. Signif...
190
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SIGMOD
2001
ACM
16 years 7 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 ...