11862 search results - page 1972 / 2373 » Relative information completeness |
271
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VLDB
2007
ACM
16 years 7 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...
285
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VLDB
2008
ACM
16 years 7 months ago
2008
ACM
Abstract Existing spatiotemporal indexes suffer from either large update cost or poor query performance, except for the Bx -tree (the state-of-the-art), which consists of multiple ...
245
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SIGMOD
2009
ACM
16 years 7 months ago
2009
ACM
Large collections of documents are commonly created around a database, where a typical database schema may contain hundreds of tables and thousands of columns. We developed a syst...
275
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SIGMOD
2006
ACM
16 years 7 months ago
2006
ACM
The area of automatic selection of physical database design to optimize the performance of a relational database system based on a workload of SQL queries and updates has gained p...
246
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SIGMOD
2005
ACM
16 years 7 months ago
2005
ACM
There has been an information explosion in fields of science such as high energy physics, astronomy, environmental sciences and biology. There is a critical need for automated sys...