201 search results - page 31 / 41 » Extending the Relational Algebra to Capture Complex Objects |
KI
2010
Springer
13 years 2 months ago
2010
Springer
Hybrid systems are models for complex physical systems and are defined as dynamical systems with interacting discrete transitions and continuous evolutions along differential equa...
SIGMOD
1996
ACM
13 years 12 months ago
1996
ACM
While much recent research has focussed on extending databases beyond the traditional relational model, relatively little has been done to develop database tools for querying data...
JISBD
2001
13 years 9 months ago
2001
Existing tools intended to build and deploy engaging complex Web sites (including functionality) have shown to be inadequate to face the software production process in an unified a...
LICS
2008
IEEE
14 years 2 months ago
2008
IEEE
We investigate the notions of may- and mustapproximation in Erratic Idealized Algol (a nondeterministic extension of Idealized Algol), and give explicit characterizations of both ...
SIGMOD
1994
ACM
13 years 11 months ago
1994
ACM
Spatial joins are one of the most important operations for combining spatial objects of several relations. In this paper, spatial join processing is studied in detail for extended...