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PVLDB
2008
13 years 9 months ago
2008
We study the problem of extracting flattened tuple data from streaming, hierarchical XML data. Tuple-extraction queries are essentially XML pattern queries with multiple extractio...
PVLDB
2008
13 years 9 months ago
2008
Brighthouse is a column-oriented data warehouse with an automatically tuned, ultra small overhead metadata layer called Knowledge Grid, that is used as an alternative to classical...
PVLDB
2008
13 years 9 months ago
2008
Archived web data is a great resource for scientific research, but poses serious challenges in data processing and management. We demonstrate the Web Lab Collaboration Server, a p...
PVLDB
2010
13 years 8 months ago
2010
We show that it is possible to significantly improve the accuracy of a general class of histogram queries while satisfying differential privacy. Our approach carefully chooses a...
PVLDB
2010
13 years 8 months ago
2010
There has been considerable past work studying data integration and uncertain data in isolation. We develop the foundations for local-as-view (LAV) data integration when the sourc...