1369 search results - page 3 / 274 » Design and Implementation of a Query Planner for Data Integr... |
SSDBM
2008
IEEE
14 years 3 hour ago
2008
IEEE
Increasingly, many data sources appear as online databases, hidden behind query forms, thus forming what is referred to as the deep web. It is desirable to have systems that can pr...
EDBTW
2010
Springer
14 years 3 days ago
2010
Springer
There has been lately an increased activity of publishing structured data in RDF due to the activity of the Linked Data community1 . The presence on the Web of such a huge informa...
WEBDB
2005
Springer
13 years 11 months ago
2005
Springer
In this paper, we describe the design and initial implementation of a geographic search engine prototype for Germany, based on a large crawl of the de domain. Geographic search en...
VLDB
2004
ACM
13 years 11 months ago
2004
ACM
PIVOT and UNPIVOT, two operators on tabular data that exchange rows and columns, enable data transformations useful in data modeling, data analysis, and data presentation. They ca...
ER
2001
Springer
13 years 10 months ago
2001
Springer
A Data Warehouse (DW) can be used to integrate data from multiple distributed data sources. A DW can be seen as a set of materialized views that determine its schema and its conten...