489 search results - page 18 / 98 » Query Selectivity Estimation via Data Mining |
SDM
2009
SIAM
15 years 6 months ago
2009
SIAM
Mean-Shift (MS) is a powerful non-parametric clustering method. Although good accuracy can be achieved, its computational cost is particularly expensive even on moderate data sets...
111
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ICNSC
2007
IEEE
15 years 3 months ago
2007
IEEE
The paper addresses object localization via a distributed sensor network. A centralized estimation approach is undertaken along with a selective node activation strategy to ensure...
WSDM
2010
ACM
15 years 7 months ago
2010
ACM
Query reformulation techniques based on query logs have been studied as a method of capturing user intent and improving retrieval effectiveness. The evaluation of these techniques...
134
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DMSN
2010
ACM
14 years 10 months ago
2010
ACM
In Mobile Sensor Network (MSN) applications, sensors move to increase the area of coverage and/or to compensate for the failure of other sensors. In such applications, loss or cor...
111
Voted
SDM
2012
SIAM
12 years 12 months ago
2012
SIAM
Many high-profile applications pose high-dimensional nearest-neighbor search problems. Yet, it still remains difficult to achieve fast query times for state-of-the-art approache...