54 search results - page 6 / 11 » Logical Foundations of Multilevel Databases |
GIS
2004
ACM
14 years 8 months ago
2004
ACM
Motivated by the increasing need to handle complex multidimensional data in location-based data warehouses, this paper proposes a powerful data model that is able to capture the c...
CATA
2001
13 years 9 months ago
2001
: In this paper we analyze some existing tools and approaches to image data modeling and we propose an Object-Oriented Image Data (OOID) model. It can be applied on a wide variety ...
BIRTHDAY
1992
Springer
13 years 11 months ago
1992
Springer
A context-free grammar is a single-tree grammar (STG) if every nonterminal symbol has at most one production rule whose right hand side contains nonterminal symbols. Various prope...
SIGMOD
1999
ACM
13 years 12 months ago
1999
ACM
It is envisaged that the application of the multilevel security (MLS) scheme will enhance exibility and e ectiveness of authorization policies in shared enterprise databases and w...
EDBT
1990
ACM
13 years 11 months ago
1990
ACM
Deductive Databases are coming of age with the emergence of efficient and easy to use systems that support queries, reasoning, and application development on databases through dec...