3777 search results - page 136 / 756 » Estimating the Quality of Databases |
251
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VLDB
2007
ACM
16 years 6 months ago
2007
ACM
Estimating the cardinality (i.e. number of distinct elements) of an arbitrary set expression defined over multiple distributed streams is one of the most fundamental queries of in...
169
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MOBIDE
2006
ACM
16 years 2 days ago
2006
ACM
The representation of moving objects in spatial database systems has become an important research topic in recent years. As it is not realistic to track and store the location of ...
176
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VLDB
1991
ACM
15 years 9 months ago
1991
ACM
We propose a two-pha.se algorithm for physical database design. In phase one the algorithm, for each logical query, losesrules to determine characteristics of a physical design (s...
110
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PRL
2006
15 years 6 months ago
2006
An automatic system to estimate the urbanization changes on the Belgian territory, using SPOT5 images and the National Geographic Institute vectorial database is proposed. The ima...
139
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SIGMOD
2010
ACM
15 years 6 months ago
2010
ACM
Improving data quality is a time-consuming, labor-intensive and often domain specific operation. Existing data repair approaches are either fully automated or not efficient in int...