407 search results - page 53 / 82 » Query Estimation by Adaptive Sampling |
COMAD
1994
15 years 1 months ago
1994
Many parallel join algorithms have been proposed in the last several years. However, most of these algorithms require that the amount of data to be joined is known in advance in o...
108
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ICB
2009
Springer
15 years 6 months ago
2009
Springer
Biometric authentication using mobile devices is becoming a convenient and important means to secure access to remote services such as telebanking and electronic transactions. Such...
91
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DEXA
2004
Springer
15 years 3 months ago
2004
Springer
Unstructured peer-to-peer systems rely on strategies and data structures (Routing Indices) for the routing of requests in the network. For those requests corresponding to informati...
171
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CSFW
2011
IEEE
13 years 11 months ago
2011
IEEE
—This paper explores the idea of knowledge-based security policies, which are used to decide whether to answer queries over secret data based on an estimation of the querier’s ...
PODS
1999
ACM
15 years 4 months ago
1999
ACM
Query optimizers rely on fast, high-quality estimates of result sizes in order to select between various join plans. Selfjoin sizes of relations provide bounds on the join size of...