556 search results - page 47 / 112 » Evaluation of probabilistic queries in moving objects databa... |
ICDE
2010
IEEE
16 years 1 months ago
2010
IEEE
The skyline query returns the most interesting tuples according to a set of explicitly defined preferences among attribute values. This work relaxes this requirement, and allows us...
131
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DPD
2002
15 years 1 months ago
2002
A major cost in executing queries in a distributed database system is the data transfer cost incurred in transferring relations (fragments) accessed by a query from different sites...
140
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DEXAW
1999
IEEE
1999
IEEE
Using the Distance Distribution for Approximate Similarity Queries in High-Dimensional Metric Spaces
15 years 5 months ago
We investigate the problem of approximate similarity (nearest neighbor) search in high-dimensional metric spaces, and describe how the distance distribution of the query object ca...
199
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GIS
2007
ACM
16 years 2 months ago
2007
ACM
The increasingly popular GPS technology and the growing amount of trajectory data it generates create the need for developing applications that efficiently store and query traject...
115
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ICDE
2010
IEEE
16 years 1 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...