17 search results - page 2 / 4 » Rule-Based Management of Schema Changes at ETL Sources |
WIIW
2001
13 years 6 months ago
2001
Web Data Warehouses have been introduced to enable the analysis of integrated Web data. One of the main challenges in these systems is to deal with the volatile and dynamic nature...
BTW
2009
Springer
13 years 12 months ago
2009
Springer
: Many model management tasks, e.g., schema matching or merging, require the manual handling of metadata. Given the diversity of metadata, its many different representations and mo...
CIKM
2004
Springer
13 years 10 months ago
2004
Springer
In the recent years, the Web has been rapidly “deepened” with the prevalence of databases online. On this deep Web, many sources are structured by providing structured query i...
VISUAL
1999
Springer
13 years 9 months ago
1999
Springer
To support the retrieval and fusion of multimedia information from multiple sources and databases, a spatial/temporal query language called ΣQL is proposed. ΣQL is based upon th...
VLDB
2005
ACM
13 years 11 months ago
2005
ACM
Schemas evolve over time to accommodate the changes in the information they represent. Such evolution causes invalidation of various artifacts depending on the schemas, such as sc...