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COOPIS
2003
IEEE
15 years 11 months ago
A Distributed Rule Mechanism for Multidatabase Systems
Abstract. We describe a mechanism based on distributed Event-ConditionAction (ECA) rules that supports data coordination in a multidatabase setting. The proposed mechanism includes...
Vasiliki Kantere, John Mylopoulos, Iluju Kiringa
IADIS
2003
15 years 8 months ago
Learning Objects: Are They Serving Practitioners Working with VLES?
The purpose of this paper is to present a high-level discussion based on ongoing research with the aim of providing support to educational practitioners based on real shareability...
Miguel Baptista Nunes, Robert Pasley, Maggie McPhe...
SIGMOD
2008
ACM
193views Database» more  SIGMOD 2008»
16 years 6 months ago
Efficient provenance storage
Scientific workflow systems are increasingly used to automate complex data analyses, largely due to their benefits over traditional approaches for workflow design, optimization, a...
Adriane Chapman, H. V. Jagadish, Prakash Ramanan
RTDB
2001
83views more  RTDB 2001»
15 years 8 months ago
Updates and View Maintenance
A database system contains base data items which record and model a physical, real world environment. For better decision support, base data items are summarized and correlated to...
Ben Kao, Kam-yiu Lam, Brad Adelberg
SIGMOD
2005
ACM
164views Database» more  SIGMOD 2005»
16 years 6 months ago
RankSQL: Query Algebra and Optimization for Relational Top-k Queries
This paper introduces RankSQL, a system that provides a systematic and principled framework to support efficient evaluations of ranking (top-k) queries in relational database syst...
Chengkai Li, Kevin Chen-Chuan Chang, Ihab F. Ilyas...