654 search results - page 78 / 131 » Complexity of Answering Queries Using Materialized Views |
105
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PLDI
1995
ACM
15 years 3 months ago
1995
ACM
The control dependence relation is used extensively in restructuring compilers. This relation is usually represented using the control dependence graph; unfortunately, the size of...
209
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ICDE
2009
IEEE
16 years 1 months ago
2009
IEEE
XML streams, such as RSS feeds or complex event streams, are becoming increasingly pervasive as they provide the foundation for a wide range of emerging applications. An important...
100
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VLDB
2007
ACM
15 years 6 months ago
2007
ACM
This paper reports our first set of results on managing uncertainty in data integration. We posit that data-integration systems need to handle uncertainty at three levels, and do...
102
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DBPL
1995
Springer
15 years 3 months ago
1995
Springer
We study the problem of maintaining recursively-de ned views, such as the transitive closure of a relation, in traditional relational languages that do not have recursion mechanis...
ALGORITHMICA
2004
14 years 11 months ago
2004
Query answers from on-line databases can easily be corrupted by hackers or malicious database publishers. Thus it is important to provide mechanisms which allow clients to trust th...