2853 search results - page 236 / 571 » On the Efficiency of Provenance Queries |
196
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SIGMOD
2003
ACM
16 years 6 months ago
2003
ACM
In this paper, we study whether the need for efficient XML publishing brings any new requirements for relational query engines, or if sorting query results in the relational engin...
177
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EDBT
2006
ACM
16 years 6 months ago
2006
ACM
Incomplete databases, that is, databases that are missing data, are present in many research domains. It is important to derive techniques to access these databases efficiently. We...
170
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VLDB
1990
ACM
15 years 10 months ago
1990
ACM
In previous papers we have proposed a graphical query language for expressing traversal recursions in labelled, directed graphs. A fundamental feature of the language is the use o...
203
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DASFAA
2009
IEEE
15 years 10 months ago
2009
IEEE
We investigate the expressiveness of existing XML keyword search semantics and propose Meaningful Connected Network (MCN) as a new semantics to capture meaningful relationships of ...
189
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EDBT
2006
ACM
15 years 10 months ago
2006
ACM
As data management applications grow more complex, they may need efficient distributed query processing, but also subscription management, data archival etc. To enact such applicat...