Sciweavers

712 search results - page 118 / 143
» Decoupled Query Optimization for Federated Database Systems
Sort
View
88
Voted
SP
1996
IEEE
15 years 3 months ago
View-Based Access Control with High Assurance
View-based access control enables content-based and context-based security, as opposed to container-based security provided in operating systems. However, view-based access contro...
Xiaolei Qian
VLDB
1993
ACM
152views Database» more  VLDB 1993»
15 years 3 months ago
Declustering Objects for Visualization
In this paper we propose a new declustering method which is particularly suitable for image and cartographic databases used for visualization. Our declustering method is based on ...
Ling Tony Chen, Doron Rotem
DELOS
2000
15 years 1 months ago
Using the Wavelet Transform to Learn from User Feedback
User feedback has proven very successful to query large multimedia databases. Due to the nature of the data representation and the mismatch between mathematical models and human p...
Ilaria Bartolini, Paolo Ciaccia, Florian Waas
SIGMOD
2010
ACM
173views Database» more  SIGMOD 2010»
15 years 4 months ago
PR-join: a non-blocking join achieving higher early result rate with statistical guarantees
Online aggregation is a promising solution to achieving fast early responses for interactive ad-hoc queries that compute aggregates on a large amount of data. Essential to the suc...
Shimin Chen, Phillip B. Gibbons, Suman Nath
175
Voted
SIGMOD
2007
ACM
144views Database» more  SIGMOD 2007»
15 years 12 months ago
Efficient xml data dissemination with piggybacking
Content-based dissemination of XML data using the publishsubscribe paradigm is an effective means to deliver relevant data to interested data consumers. To meet the performance ch...
Chee Yong Chan, Yuan Ni