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204
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SIGMOD
2008
ACM
16 years 4 months ago
2008
ACM
How can we efficiently find a clustering, i.e. a concise description of the cluster structure, of a given data set which contains an unknown number of clusters of different shape ...
247
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SIGMOD
2008
ACM
16 years 4 months ago
2008
ACM
While database management systems offer a comprehensive solution to data storage, they require deep knowledge of the schema, as well as the data manipulation language, in order to...
207
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SIGMOD
2007
ACM
16 years 4 months ago
2007
ACM
An important problem for many location-based applications is the continuous evaluation of proximity relations among moving objects. These relations express whether a given set of ...
230
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SIGMOD
2007
ACM
16 years 4 months ago
2007
ACM
Complex queries often contain common or similar subexpressions, either within a single query or among multiple queries submitted as a batch. If so, query execution time can be imp...
203
click to vote
SIGMOD
2007
ACM
16 years 4 months ago
2007
ACM
Optimizing SQL subqueries has been an active area in database research and the database industry throughout the last decades. Previous work has already identified some approaches ...