9683 search results - page 1676 / 1937 » Query performance prediction |
124
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SIGMOD
2003
ACM
16 years 4 months ago
2003
ACM
Recently, a technique called quotient cube was proposed as a summary structure for a data cube that preserves its semantics, with applications for online exploration and visualiza...
152
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SIGMOD
2003
ACM
16 years 4 months ago
2003
ACM
Spatial database operations are typically performed in two steps. In the filtering step, indexes and the minimum bounding rectangles (MBRs) of the objects are used to quickly dete...
147
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SIGMOD
2001
ACM
16 years 4 months ago
2001
ACM
This paper describes the methodology and implementation of a data management system for highly distributed systems, which was built to solve the scalability and reliability proble...
133
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PODS
2006
ACM
16 years 4 months ago
2006
ACM
Skew is prevalent in data streams, and should be taken into account by algorithms that analyze the data. The problem of finding "biased quantiles"-- that is, approximate...
135
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PODS
2008
ACM
16 years 4 months ago
2008
ACM
In the rank join problem, we are given a set of relations and a scoring function, and the goal is to return the join results with the top K scores. It is often the case in practic...