6004 search results - page 881 / 1201 » Parallelizing query optimization |
133
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IFIP12
2009
15 years 26 days ago
2009
In this paper we propose a web search methodology based on the Ant Colony Optimization (ACO) algorithm, which aims to enhance the amount of the relevant information in respect to a...
154
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CORR
2011
Springer
14 years 10 months ago
2011
Springer
—With the rise of XML as a standard for representing business data, XML data warehousing appears as a suitable solution for decision-support applications. In this context, it is ...
134
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CORR
2011
Springer
14 years 10 months ago
2011
Springer
Index tuning, i.e., selecting the indexes appropriate for a workload, is a crucial problem in database system tuning. In this paper, we solve index tuning for large problem instan...
146
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TC
2011
14 years 10 months ago
2011
— Processing the gathered information efficiently is a key functionality for wireless sensor networks. In this article, we study the time complexity, message complexity (number ...
131
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SODA
2012
ACM
13 years 5 months ago
2012
ACM
We consider the dictionary problem in external memory and improve the update time of the wellknown buffer tree by roughly a logarithmic factor. For any λ ≥ max{lg lg n, logM/B(...