6905 search results - page 957 / 1381 » Querying Multidimensional Databases |
214
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SIGMOD
2007
ACM
16 years 5 months ago
2007
ACM
A "sparse" data set typically has hundreds or even thousands of attributes, but most objects have non-null values for only a small number of these attributes. A popular ...
233
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SIGMOD
2007
ACM
16 years 5 months ago
2007
ACM
Numerous widely publicized cases of theft and misuse of private information underscore the need for audit technology to identify the sources of unauthorized disclosure. We present...
123
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ICDE
2010
IEEE
16 years 4 months ago
2010
IEEE
Decision support queries that scan large indexes can suffer significant degradation in I/O performance due to index fragmentation. DBAs rely on rules of thumb that use index size a...
123
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SDM
2009
SIAM
16 years 2 months ago
2009
SIAM
Correlation mining has been widely studied due to its ability for discovering the underlying occurrence dependency between objects. However, correlation mining in graph databases ...
153
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VLDB
2007
ACM
15 years 11 months ago
2007
ACM
Efficient management of RDF data is an important factor in realizing the Semantic Web vision. Performance and scalability issues are becoming increasingly pressing as Semantic Web...