2063 search results - page 154 / 413 » Containment of Aggregate Queries |
162
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PODS
2004
ACM
16 years 4 months ago
2004
ACM
Data exchange is the problem of taking data structured under a source schema and creating an instance of a target schema. Given a source instance, there may be many solutions ? ta...
160
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EDBT
2004
ACM
16 years 4 months ago
2004
ACM
XML makes data flexible in representation and easily portable on the Web but it also substantially inflates data size as a consequence of using tags to describe data. Although many...
140
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IMC
2004
ACM
15 years 10 months ago
2004
ACM
This paper characterizes the query behavior of peers in a peer-topeer (P2P) file sharing system. In contrast to previous work, which provides various aggregate workload statistics...
140
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SIGMOD
1997
ACM
15 years 8 months ago
1997
ACM
: The read-mostly environment of data warehousing makes it possible to use more complex indexes to speed up queries than in situations where concurrent updatesare present. The curr...
136
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SIGMOD
2002
ACM
16 years 4 months ago
2002
ACM
In this paper, we ask if the traditional relational query acceleration techniques of summary tables and covering indexes have analogs for branching path expression queries over tr...