713 search results - page 78 / 143 » A Learning Optimizer for a Federated Database Management Sys... |
109
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PODS
2008
ACM
15 years 10 months ago
2008
ACM
A schema mapping is a high-level specification that describes the relationship between two database schemas. As schema mappings constitute the essential building blocks of data ex...
149
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SIGMOD
2008
ACM
15 years 10 months ago
2008
ACM
Today's query processing engines do not take advantage of the multiple occurrences of a relation in a query to improve performance. Instead, each instance is treated as a dis...
179
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SIGMOD
2007
ACM
15 years 10 months ago
2007
ACM
Incomplete information arises naturally in numerous data management applications. Recently, several researchers have studied query processing in the context of incomplete informat...
KDD
2007
ACM
15 years 10 months ago
2007
ACM
The kernel function plays a central role in kernel methods. In this paper, we consider the automated learning of the kernel matrix over a convex combination of pre-specified kerne...
ICDE
2009
IEEE
14 years 7 months ago
2009
IEEE
The identification and processing of similarities in the data play a key role in multiple application scenarios. Several types of similarity-aware operations have been studied in ...