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» Metadata management and relational databases
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COOPIS
2004
IEEE
15 years 1 months ago
Refresco: Improving Query Performance Through Freshness Control in a Database Cluster
Abstract. We consider the use of a cluster system for managing autonomous databases. In order to improve the performance of read-only queries, we strive to exploit user requirement...
Cécile Le Pape, Stéphane Ganç...
IJET
2007
101views more  IJET 2007»
14 years 9 months ago
XML and Databases for E-Learning Applications
: XML has become a standard format in information exchange and integration on the Web. Much research has been conducted in recent years on XML technology, which has led to new deve...
Samir Abou El-Seoud, Hosam Farouk El-Sofany, Fayed...
SIGMOD
2003
ACM
115views Database» more  SIGMOD 2003»
15 years 10 months ago
Rondo: A Programming Platform for Generic Model Management
Model management aims at reducing the amount of programming needed for the development of metadata-intensive applications. We present a first complete prototype of a generic model...
Sergey Melnik, Erhard Rahm, Philip A. Bernstein
PODS
2007
ACM
131views Database» more  PODS 2007»
15 years 10 months ago
Provenance semirings
We show that relational algebra calculations for incomplete databases, probabilistic databases, bag semantics and whyprovenance are particular cases of the same general algorithms...
Todd J. Green, Gregory Karvounarakis, Val Tannen
ER
2004
Springer
79views Database» more  ER 2004»
15 years 3 months ago
Towards the Managment of Time in Data-Intensive Web Sites
The adoption of a logical model for temporal, data-intensive Web sites is proposed together with a methodology for the development. The model allows the definition of page-schemes...
Paolo Atzeni, Pierluigi Del Nostro