6746 search results - page 907 / 1350 » Multimodal Database Query |
307
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ICDE
2008
IEEE
16 years 8 months ago
2008
IEEE
Errors in estimating page counts can lead to poor choice of access methods and in turn to poor quality plans. Although there is past work in using execution feedback for accurate c...
302
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ICDE
2006
IEEE
16 years 8 months ago
2006
IEEE
Given a set of multi-dimensional points, the skyline contains the best points according to any preference function that is monotone on all axes. In practice, applications that req...
305
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GIS
2006
ACM
16 years 8 months ago
2006
ACM
Location information gathered from a variety of sources in the form of sensor data, video streams, human observations, and so on, is often imprecise and uncertain and needs to be ...
328
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VLDB
2007
ACM
16 years 7 months ago
2007
ACM
Given a multidimensional point q, a reverse k nearest neighbor (RkNN) query retrieves all the data points that have q as one of their k nearest neighbors. Existing methods for proc...
265
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SIGMOD
2007
ACM
16 years 7 months ago
2007
ACM
A "sparse" data set typically has hundreds or even thousands of attributes, but most objects have non-null values for only a small number of these attributes. A popular ...