710 search results - page 54 / 142 » Relational Expressive Power of Constraint Query Languages |
WWW
2006
ACM
14 years 8 months ago
2006
ACM
Path expressions are the principal means of locating data in a hierarchical model. But path expressions are brittle because they often depend on the structure of data and break if...
AAAI
2000
13 years 9 months ago
2000
In recent years, there have been several proposals that extend the expressive power of Bayesian networks with that of relational models. These languages open the possibility for t...
SEMWEB
2004
Springer
14 years 1 months ago
2004
Springer
Abstract. Building user-friendly GUIs for browsing and filtering RDF/S description bases while exploiting in a transparent way the expressiveness of declarative query/view language...
ISLPED
2007
ACM
13 years 9 months ago
2007
ACM
We analyze the effect of thermal constraints on the performance and power of multi-core processors. We propose system-level power and thermal models, and derive expressions for (a...
CCS
2007
ACM
14 years 1 months ago
2007
ACM
In this paper, we study the maintenance of role-based access control (RBAC) models in database environments using transitive closure relations. In particular, the algorithms that ...