2724 search results - page 257 / 545 » Optimizing Queries on Files |
132
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ICDE
2010
IEEE
16 years 4 months ago
2010
IEEE
A supergraph containment search is to retrieve the data graphs contained by a query graph. In this paper, we study the problem of efficiently retrieving all data graphs approximate...
118
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CIKM
2009
Springer
15 years 11 months ago
2009
Springer
Structural indices play a significant role in improving the efficiency of XML query evaluation. Being able to compare various structural indexing techniques is critical for a DBM...
118
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EDBT
2010
ACM
15 years 9 months ago
2010
ACM
In adaptive query processing, the way in which a query is evaluated is changed in the light of feedback obtained from the environment during query evaluation. Such feedback may, f...
141
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DASFAA
2007
IEEE
15 years 8 months ago
2007
IEEE
Abstract. In this paper, we present a novel ordered XPATH evaluation in treeunaware RDBMS. The novelties of our approach lies in the followings. (a) We propose a novel XML storage ...
127
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ESWS
2008
Springer
15 years 6 months ago
2008
Springer
The goal of this paper is to give an overview of the basics of the theory of RDF databases. We provide a formal definition of RDF that includes the features that distinguish this m...