716 search results - page 111 / 144 » Optimizing Queries in Extended Relational Databases |
191
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PODS
2009
ACM
16 years 2 months ago
2009
ACM
An inverse of a schema mapping M is intended to "undo" what M does, thus providing a way to perform "reverse" data exchange. In recent years, three different f...
108
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XSYM
2004
Springer
15 years 7 months ago
2004
Springer
A key step in the optimization of declarative queries over XML data is estimating the selectivity of path expressions, i.e., the number of elements reached by a specific navigatio...
116
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VLDB
2007
ACM
15 years 7 months ago
2007
ACM
Real-world datasets exhibit a complex dependency structure among the data attributes. Learning this structure is a key task in automatic statistics configuration for query optimi...
121
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SIGMOD
2002
ACM
16 years 1 months ago
2002
ACM
The widespread distribution and availability of smallscale sensors, actuators, and embedded processors is transforming the physical world into a computing platform. One such examp...
104
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CORR
2002
Springer
15 years 1 months ago
2002
Springer
The Annotation Graph Toolkit (AGTK) is a collection of software which facilitates development of linguistic annotation tools. AGTK provides a database interface which allows appli...