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2009
Springer
15 years 2 months ago
An Ontology-Based Autonomic System for Improving Data Warehouse Performances
: With the increase in the amount and complexity of information, data warehouse performance has become a constant issue, especially for decision support systems. As decisional expe...
Vlad Nicolicin-Georgescu, Vincent Benatier, R&eacu...
DILS
2005
Springer
15 years 3 months ago
Hybrid Integration of Molecular-Biological Annotation Data
: We present a new approach to integrate annotation data from public sources for the expression analysis of genes and proteins. Expression data is materialized in a data warehouse ...
Toralf Kirsten, Hong Hai Do, Christine Körner...
MOBIDE
1999
ACM
15 years 2 months ago
Data Warehousing Alternatives for Mobile Environments
With rapid advancement in technology, mobile devices are increasingly becoming the norm. These devices are characterized by their need to operate even when they are disconnected f...
Ioana Stanoi, Divyakant Agrawal, Amr El Abbadi, Sh...
EDBT
2009
ACM
131views Database» more  EDBT 2009»
15 years 1 months ago
Sample synopses for approximate answering of group-by queries
With the amount of data in current data warehouse databases growing steadily, random sampling is continuously gaining in importance. In particular, interactive analyses of large d...
Philipp Rösch, Wolfgang Lehner
SIGMOD
2011
ACM
221views Database» more  SIGMOD 2011»
14 years 17 days ago
Scalable query rewriting: a graph-based approach
In this paper we consider the problem of answering queries using views, which is important for data integration, query optimization, and data warehouses. We consider its simplest ...
George Konstantinidis, José Luis Ambite