710 search results - page 18 / 142 » Relational Expressive Power of Constraint Query Languages |
PODS
2003
ACM
14 years 7 months ago
2003
ACM
In this paper we consider general path constraints for semistructured databases. Our general constraints do not suffer from the limitations of the path constraints previously stud...
IS
2008
13 years 7 months ago
2008
XQuery is a powerful XML query language with many features and syntactic constructs. For many common queries we do not need all the expressive power of XQuery. We investigate the ...
ICDE
2006
IEEE
14 years 9 months ago
2006
IEEE
In this paper, we present the ArchIS system that achieves full-functionality transaction-time databases without requiring temporal extensions in XML or database standards. ArchIS&...
EACL
1989
ACL Anthology
13 years 8 months ago
1989
ACL Anthology
In this paper, we present a logic-based computational model for movement theory in Government and Binding Theory. For that purpose, we have designed a language called DISLOG. DISL...
SYNTHESE
2008
13 years 7 months ago
2008
Dynamic Epistemic Logic (DEL) is the study of how to reason about knowledge, belief, and communication. This paper studies the relative expressivity of certain fragments of the DE...