304 search results - page 20 / 61 » Schema mappings, data exchange, and metadata management |
VLDB
2007
ACM
15 years 3 months ago
2007
ACM
This paper reports our first set of results on managing uncertainty in data integration. We posit that data-integration systems need to handle uncertainty at three levels, and do...
170
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SIGMOD
2009
ACM
15 years 9 months ago
2009
ACM
Schema evolution poses serious challenges in historical data management. Traditionally historical data have been archived either by (i) migrating them into the current schema vers...
80
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PVLDB
2010
14 years 7 months ago
2010
The recent literature has provided a solid theoretical foundation for the use of schema mappings in data-exchange applications. Following this formalization, new algorithms have b...
EDBT
2009
ACM
15 years 22 days ago
2009
ACM
In a world of wide-scale information sharing, the decentralized coordination has to consolidate a variety of heterogeneity. Shared data are described in different formats, i.e. da...
WWW
2002
ACM
15 years 10 months ago
2002
ACM
Richly interlinked, machine-understandable data constitute the basis for the Semantic Web. We provide a framework, CREAM, that allows for creation of metadata. While the annotatio...