716 search results - page 111 / 144 » Optimizing Queries in Extended Relational Databases |
170
click to vote
PODS
2009
ACM
15 years 11 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...
XSYM
2004
Springer
15 years 4 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...
VLDB
2007
ACM
15 years 5 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...
SIGMOD
2002
ACM
15 years 11 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...
CORR
2002
Springer
14 years 11 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...