151 search results - page 20 / 31 » Materializing views with minimal size to answer queries |
214
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ICDT
2009
ACM
16 years 12 days ago
2009
ACM
A technique called user views has recently been proposed to focus user attention on relevant information in response to provenance queries over workflow executions [1, 2]: Given u...
CORR
2010
Springer
14 years 11 months ago
2010
Springer
In recent years, the significant growth of RDF data used in numerous applications has made its efficient and scalable manipulation an important issue. In this paper, we present RD...
109
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VLDB
2004
ACM
15 years 5 months ago
2004
ACM
In data stream applications, data arrive continuously and can only be scanned once as the query processor has very limited memory (relative to the size of the stream) to work with...
119
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SIGMOD
2012
ACM
13 years 2 months ago
2012
ACM
We study the notion of regret ratio proposed in [19] to deal with multi-criteria decision making in database systems. The regret minimization query proposed in [19] was shown to h...
112
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MDM
2009
Springer
15 years 6 months ago
2009
Springer
— This work aims at minimize the cost of answering snapshot multi-predicate queries in high-communication-cost networks. High-communication-cost (HCC) networks is a family of net...