1168 search results - page 66 / 234 » Optimization strategies for complex queries |
150
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SIGMOD
2007
ACM
15 years 10 months ago
2007
ACM
Good cardinality estimates are critical for generating good execution plans during query optimization. Complex predicates, correlations between columns, and user-defined functions...
121
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ICDE
2012
IEEE
13 years 8 days ago
2012
IEEE
—Many companies now routinely run massive data analysis jobs – expressed in some scripting language – on large clusters of low-end servers. Many analysis scripts are complex ...
MM
2004
ACM
15 years 3 months ago
2004
ACM
It has been established that active learning is effective for learning complex, subjective query concepts for image retrieval. However, active learning has been applied in a conc...
ICC
2007
IEEE
15 years 4 months ago
2007
IEEE
— We consider a wireless multiuser network where a number of source/destination pairs communicate concurrently over the same physical channel. A set of amplify-and-forward relay ...
129
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WINE
2010
Springer
14 years 7 months ago
2010
Springer
We study Congestion Games with non-increasing cost functions (Cost Sharing Games) from a complexity perspective and resolve their computational hardness, which has been an open que...