964 search results - page 25 / 193 » Efficiently Ordering Query Plans for Data Integration |
147
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FOIKS
2004
Springer
15 years 8 months ago
2004
Springer
When two or more databases are combined into a global one, integrity may be violated even when each database is consistent with its own local integrity constraints. Efficient metho...
155
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WISE
2006
Springer
15 years 10 months ago
2006
Springer
Filtering queries are widely used in data stream applications. As more and more filtering queries are registered in high-speed data stream management system, the processing efficie...
159
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ICDE
2009
IEEE
15 years 11 months ago
2009
IEEE
— A paramount challenge in probabilistic databases is the scalable computation of confidences of tuples in query results. This paper introduces an efficient secondary-storage o...
130
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ICDE
2007
IEEE
15 years 10 months ago
2007
IEEE
Recently there is much need of discovering useful knowledge from massive log-data which are generated by Webbased information systems. Such log-data have multiple attributes about...
141
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WWW
2001
ACM
16 years 5 months ago
2001
ACM
A wealth of information is available on the Web. But often, such data are hidden behind form interfaces which allow only a restrictive set of queries over the underlying databases...