712 search results - page 29 / 143 » Decoupled Query Optimization for Federated Database Systems |
128
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VLDB
2002
ACM
15 years 1 months ago
2002
ACM
An increasing number of applications use XML data published from relational databases. For speed and convenience, such applications routinely cache this XML data locally and acces...
148
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ICDE
2010
IEEE
15 years 8 months ago
2010
IEEE
— Finding the k nearest neighbors (kNN) of a query point, or a set of query points (kNN-Join) are fundamental problems in many application domains. Many previous efforts to solve...
131
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ICDE
2006
IEEE
15 years 8 months ago
2006
IEEE
The window query model is widely used in data stream management systems where the focus of a continuous query is limited to a set of the most recent tuples. In this dissertation, ...
111
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VLDB
1994
ACM
15 years 6 months ago
1994
ACM
In existing relational database systems, processing of group-by and computation of aggregate functions are always postponed until all joins are performed. In this paper, we presen...
213
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SIGMOD
2008
ACM
16 years 2 months ago
2008
ACM
Text documents often embed data that is structured in nature. This structured data is increasingly exposed using information extraction systems, which generate structured relation...