710 search results - page 25 / 142 » Relational Expressive Power of Constraint Query Languages |
ICDE
2003
IEEE
14 years 9 months ago
2003
IEEE
We present a technique for refining the design of relational storage for XML data based on XML key propagation. Three algorithms are presented: one checks whether a given function...
COLING
2008
13 years 9 months ago
2008
We introduce a new type of discourse constraints for the interaction of discourse relations with the configuration of discourse segments. We examine corpus-extracted examples as s...
ACL
2009
13 years 5 months ago
2009
This paper presents a system for querying treebanks. The system consists of a powerful query language with natural support for cross-layer queries, a client interface with a graph...
CP
2000
Springer
13 years 11 months ago
2000
Springer
We are interested in the expressiveness of constraints represented by general first order formulae, with equality as unique relation symbol and function symbols taken from an infi...
VLDB
2003
ACM
14 years 8 months ago
2003
ACM
Due to their expressive power, Regular Expressions (REs) are quickly becoming an integral part of language specifications for several important application scenarios. Many of thes...