Sciweavers

522 search results - page 70 / 105
» Answering Aggregation Queries in a Secure System Model
Sort
View
KRDB
1997
167views Database» more  KRDB 1997»
13 years 9 months ago
Materialized Views and Data Warehouses
A data warehouse is a redundant collection of data replicated from several possibly distributed and loosely coupled source databases, organized to answer OLAP queries. Relational ...
Nick Roussopoulos
KR
2004
Springer
14 years 1 months ago
A Logic of Motion
There are numerous applications such as air traffic management, cellular phone location tracking, and vehicle protection systems where there is a critical need to reason about mo...
Fusun Yaman, Dana S. Nau, V. S. Subrahmanian
ICPPW
2003
IEEE
14 years 28 days ago
Security Aspects of Wireless Heterogeneous Databases - Protocol, Performance, and Energy Analysis
Users have been demanding information “anytime, anywhere”. The notion of accessing diverse and autonomous information repositories with different APIs is not accepted. This ha...
Harshal Haridas, Ali R. Hurson, Yu Jiao
VLDB
1993
ACM
73views Database» more  VLDB 1993»
13 years 11 months ago
A Model of Methods Access Authorization in Object-oriented Databases
Object-oriented databases are a recent and important development and many studies of them have been performed. These consider aspects such as data modeling, query languages, perfo...
Nurit Gal-Oz, Ehud Gudes, Eduardo B. Fernán...
ADVIS
2006
Springer
14 years 1 months ago
Structural and Event Based Multimodal Video Data Modeling
Investments on multimedia technology enable us to store many more reflections of the real world in digital world as videos. By recording videos about real world entities, we carry...
Hakan Öztarak, Adnan Yazici