511 search results - page 36 / 103 » Approximate Selection Queries over Imprecise Data |
129
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VLDB
1997
ACM
15 years 10 months ago
1997
ACM
The result size of a query that involves multiple attributes from the same relation depends on these attributes’ joint data distribution,i.e., the frequencies of all combination...
197
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SIGMETRICS
2011
ACM
14 years 8 months ago
2011
ACM
The massive data streams observed in network monitoring, data processing and scientific studies are typically too large to store. For many applications over such data, we must ob...
140
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DCC
2007
IEEE
16 years 5 months ago
2007
IEEE
Data synopsis is a lossy compressed representation of data stored into databases that helps the query optimizer to speed up the query process, e.g. time to retrieve the data from ...
180
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EDBT
2006
ACM
16 years 6 months ago
2006
ACM
Recent advances in hardware technology have resulted in the ability to collect and process large amounts of data. In many cases, the collection of the data is a continuous process ...
147
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DAWAK
1999
Springer
15 years 10 months ago
1999
Springer
A data warehouse DW can be seen as a set of materialized views de ned over remote base relations. When a query is posed, it is evaluated locally, using the materialized views, wi...