2859 search results - page 168 / 572 » Querying Complex Structured Databases |
ISCI
2007
13 years 8 months ago
2007
In an object-relational database management system, a query optimizer requires users to provide cost models of userdefined functions. The traditional approach is analytical, that...
COMPGEOM
1994
ACM
14 years 12 days ago
1994
ACM
Ray (segment) shooting is the problem of determining the first intersection between a ray (directed line segment) and a collection of polygonal or polyhedral obstacles. In order t...
ADC
2008
Springer
14 years 2 months ago
2008
Springer
Several XML query languages have been proposed that use XPath expressions to locate data. But XPath expressions might miss some data because of irregularities in the data and sche...
ICDE
2007
IEEE
14 years 2 months ago
2007
IEEE
User-defined preferences allow personalized ranking of query results. A user provides a declarative specification of his/her preferences, and the system is expected to use that ...
ACIIDS
2011
IEEE
13 years 3 months ago
2011
IEEE
While in the traditional workflow processes the control flow is determined statically within process definitions, in declarative workflow processes the control flow is dynamic and ...