243 search results - page 27 / 49 » Selectivity Estimation for Boolean Queries |
119
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3DPVT
2006
IEEE
15 years 9 months ago
2006
IEEE
In this paper we present a prototype system for image based localization in urban environments. Given a database of views of city street scenes tagged by GPS locations, the system...
123
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ICDE
2010
IEEE
16 years 2 months ago
2010
IEEE
Estimation via sampling out of highly selective join queries is well known to be problematic, most notably in online aggregation. Without goal-directed sampling strategies, samples...
145
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WISE
2006
Springer
15 years 9 months ago
2006
Springer
Filtering queries are widely used in data stream applications. As more and more filtering queries are registered in high-speed data stream management system, the processing efficie...
138
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GEOINFO
2003
15 years 4 months ago
2003
Relational index structures, as for instance the Relational Interval Tree, the Relational R-Tree, or the Linear Quadtree, support efficient processing of queries on top of existing...
141
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DASFAA
2004
IEEE
15 years 6 months ago
2004
IEEE
Abstract. The efficient management of interval sequences represents a core requirement for many temporal and spatial database applications. With the Relational Interval Tree (RI-tr...