4557 search results - page 851 / 912 » A performance evaluation of local descriptors |
198
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MOBIHOC
2005
ACM
16 years 5 months ago
2005
ACM
Node compromise poses severe security threats in wireless sensor networks. Unfortunately, existing security designs can address only a small, fixed threshold number of compromised...
164
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MOBIHOC
2003
ACM
16 years 5 months ago
2003
ACM
Spatial query execution is an essential functionality of a sensor network, where a query gathers sensor data within a specific geographic region. Redundancy within a sensor networ...
171
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WSDM
2010
ACM
16 years 3 months ago
2010
ACM
Sponsored search is a multi-billion dollar business that generates most of the revenue for search engines. Predicting the probability that users click on ads is crucial to sponsor...
157
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WSDM
2010
ACM
16 years 3 months ago
2010
ACM
We study the problem of designing a mechanism to rank items in forums by making use of the user reviews such as thumb and star ratings. We compare mechanisms where forum users rat...
163
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WSDM
2010
ACM
16 years 3 months ago
2010
ACM
As the Web provides rich data embedded in the immense contents inside pages, we witness many ad-hoc efforts for exploiting fine granularity information across Web text, such as We...