4397 search results - page 24 / 880 » Relational Algebra Operations |
ICDE
2007
IEEE
14 years 9 months ago
2007
IEEE
Optimizing nested queries is an intricate problem. It becomes even harder if in a nested query the linking predicate or the correlation predicate occurs disjunctively. We present ...
ENTCS
2008
13 years 7 months ago
2008
In this paper, we define labeled multigraphs with ports, a graph model which specifies connection points for nodes and allows multiple edges and loops. The dynamic evolution of th...
FUIN
2007
13 years 7 months ago
2007
The paper is concerned with algebras whose elements can be used to represent runs of a system, called processes. These algebras, called behaviour algebras, are categories with resp...
CORR
2010
Springer
13 years 7 months ago
2010
Springer
Abstract. In this note we reinvestigate the task of computing creative telescoping relations in differential-difference operator algebras. Our approach is based on an ansatz that e...
TCS
2008
13 years 7 months ago
2008
These are notes for a lecture given at Ohio University on June 3, 2006. An important topic in commutative algebra is the Rees algebra of an ideal in a commutative ring. The Rees al...