710 search results - page 49 / 142 » Relational Expressive Power of Constraint Query Languages |
DBPL
1999
Springer
14 years 22 hour ago
1999
Springer
We consider two-dimensional spatial databases defined in terms of polynomial inequalities and focus on the potential of programming languages for such databases to express queries...
DLOG
2010
13 years 5 months ago
2010
The task of generating referring expressions, an important subtask of Natural Language Generation is to generate phrases that uniquely identify domain entities. Until recently, man...
SIGMOD
2007
ACM
14 years 7 months ago
2007
ACM
An important problem for many location-based applications is the continuous evaluation of proximity relations among moving objects. These relations express whether a given set of ...
CLIMA
2007
13 years 9 months ago
2007
Abstract. In this paper we are concerned with proposing, analyzing and implementing simple, yet flexible, constructs for multi-agent programming. In particular, we wish to extend ...
VLDB
1991
ACM
13 years 11 months ago
1991
ACM
Object-oriented data models are receiving wide attention since they provide expressive ionmechanismsto model naturally and directly both structural and behavioral aspectsof comple...