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191
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PODS
2005
ACM
16 years 7 months ago
2005
ACM
Suppose we have a large table T of items i, each with a weight wi, e.g., people and their salary. In a general preprocessing step for estimating arbitrary subset sums, we assign e...
196
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EDBT
2006
ACM
16 years 7 months ago
2006
ACM
Current methods for selectivity estimation fall into two broad categories, synopsis-based and sampling-based. Synopsis-based methods, such as histograms, incur minimal overhead at ...
161
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MOBIHOC
2008
ACM
16 years 6 months ago
2008
ACM
In this paper, we identify a new problem in wireless sensor networks, distance sensitive service discovery, where nearby or closest service selection guarantee is expected. We pro...
202
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WWW
2010
ACM
16 years 1 months ago
2010
ACM
The World-Wide Web consists not only of a huge number of unstructured texts, but also a vast amount of valuable structured data. Web tables [2] are a typical type of structured in...
211
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CCS
2009
ACM
16 years 1 months ago
2009
ACM
In mobile networks, authentication is a required primitive of the majority of security protocols. However, an adversary can track the location of mobile nodes by monitoring pseudo...