550 search results - page 85 / 110 » An Expressive Language for Linear Spatial Database Queries |
SIGMOD
2005
ACM
14 years 8 months ago
2005
ACM
Clio, the IBM Research system for expressing declarative schema mappings, has progressed in the past few years from a research prototype into a technology that is behind some of I...
ICDT
2012
ACM
11 years 11 months ago
2012
ACM
A universal model of a database D and a set Σ of integrity constraints is a database that extends D, satisfies Σ, and is most general in the sense that it contains sound and co...
DOCENG
2004
ACM
14 years 2 months ago
2004
ACM
XPath [16] was introduced by the W3C as a standard language for specifying node selection, matching conditions, and for computing values from an XML document. XPath is now used in...
BTW
2007
Springer
14 years 2 months ago
2007
Springer
: Information integration requires manipulating data and metadata in ways that in general go beyond a single existing transformation formalism. As a result, a complete source-to-ta...
WEBDB
2005
Springer
14 years 2 months ago
2005
Springer
Nonrecursive XQuery is known to be hard for nondeterministic exponential time. Thus it is commonly believed that any algorithm for evaluating XQuery has to require exponential amo...