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149
Voted
PODS
2000
ACM
137views Database» more  PODS 2000»
15 years 9 months ago
Query Containment for Data Integration Systems
The problem of query containment is fundamental to many aspects of database systems, including query optimization, determining independence of queries from updates, and rewriting ...
Todd D. Millstein, Alon Y. Levy, Marc Friedman
LCPC
1992
Springer
15 years 8 months ago
A Calculus of Gamma Programs
The Gamma model is a minimal programming language based on local multiset rewriting (with an elegant chemical reaction metaphor); Hankin et al derived a calculus of Gamma programs...
Chris Hankin, Daniel Le Métayer, David Sand...
147
Voted
ACSAC
2001
IEEE
15 years 8 months ago
Information Flow Analysis of Component-Structured Applications
Software component technology facilitates the costeffective development of specialized applications. Nevertheless, due to the high number of principals involved in a component-str...
Peter Herrmann
VLDB
1987
ACM
104views Database» more  VLDB 1987»
15 years 8 months ago
Magic Functions: A Technique to Optimize Extended Datalog Recursive Programs
Severalmethodshavebeenproposedto compile recursive Datalog programs. The most well-known perform a rewriting of rules using MAGIC or PROBLEM predicates in order to push selections...
Georges Gardarin
AIMSA
2010
Springer
15 years 6 months ago
Expressive Approximations in DL-Lite Ontologies
Abstract. Ontology based data access (OBDA) is concerned with providing access to typically very large data sources through a mediating conceptual layer that allows one to improve ...
Elena Botoeva, Diego Calvanese, Mariano Rodriguez-...