147 search results - page 1 / 30 » A magic approach to optimizing incremental relational expres... |
IDEAS
2009
IEEE
13 years 11 months ago
2009
IEEE
This paper is concerned with a transformation-based approach to update propagation in an extended version of Codd’s relational algebra which allows for defining derived relatio...
WLP
2000
Springer
13 years 8 months ago
2000
Springer
In this paper, a dynamic approach to deductive query evaluation is presented which combines the e ects of di erent SIP strategies used for the magic set rewriting technique. Given...
SEMWEB
2010
Springer
13 years 2 months ago
2010
Springer
OWL 2 RL was standardized as a less expressive but scalable subset of OWL 2 that allows a forward-chaining implementation. However, building an enterprise-scale forward-chaining ba...
IS
2006
13 years 4 months ago
2006
Views stored in a data warehouse need to be kept current. As recomputing the views is very expensive, incremental maintenance algorithms are required. Over recent years, several i...
SIGMOD
2005
ACM
14 years 4 months ago
2005
ACM
Caching data by maintaining materialized views typically requires updating the cache appropriately to reflect dynamic source updates. Extensive research has addressed the problem ...