710 search results - page 82 / 142 » Relational Expressive Power of Constraint Query Languages |
VLDB
2007
ACM
14 years 8 months ago
2007
ACM
This demonstration showcases the STEP system for natural language access to relational databases. In STEP an administrator authors a highly structured semantic grammar through cou...
SIGMOD
2005
ACM
14 years 8 months ago
2005
ACM
We give semantic characterizations of the expressive power of navigational XPath (also called Core XPath) in terms of first order logic. XPath can be used to specify sets of nodes...
EACL
1989
ACL Anthology
13 years 9 months ago
1989
ACL Anthology
A framework for translating speaker's meaning or intention is proposed based on two notions, Illocutionary Force Types (IFTs) for analysis and Decision Parameters (DPs) for g...
ICDE
2009
IEEE
13 years 5 months ago
2009
IEEE
There is much effort to develop comprehensive support for the storage and querying of XML data in database management systems. The major developers have extended their systems to h...
ECIR
2009
Springer
13 years 5 months ago
2009
Springer
Abstract. The structural heterogeneity and complexity of XML repositories makes query formulation challenging for users who have little knowledge of XML. To assist its users, an XM...