710 search results - page 93 / 142 » Relational Expressive Power of Constraint Query Languages |
CSFW
2003
IEEE
14 years 1 months ago
2003
IEEE
SPKI/SDSI is a language for expressing distributed access control policy, derived from SPKI and SDSI. We provide a first-order logic (FOL) semantics for SDSI, and show that it ha...
CP
2003
Springer
14 years 29 days ago
2003
Springer
Abstract. Many real world problems, e.g. personnel scheduling and transportation planning, can be modeled naturally as Constrained Shortest Path Problems (CSPPs), i.e., as Shortest...
DBPL
2007
Springer
14 years 1 months ago
2007
Springer
Transforming relational data into XML, as known as XML publishing, is often necessary when one wants to exchange data residing in databases or to create an XML interface of a tradi...
DMDW
2000
13 years 9 months ago
2000
View materialization is a central issue in logical design of data warehouses since it is one of the most powerful techniques to improve the response to the workload. Most approach...
JSC
2010
13 years 6 months ago
2010
Negation is intrinsic to human thinking and most of the time when searching for something, we base our patterns on both positive and negative conditions. This should be naturally ...