486 search results - page 79 / 98 » Evaluating Top-k Queries over Web-Accessible Databases |
147
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SEMWEB
2009
Springer
15 years 6 months ago
2009
Springer
Abstract—For many tasks, such as the integration of knowledge bases in the semantic web, one must not only handle the knowledge itself, but also characterizations of this knowled...
222
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VLDB
2006
ACM
16 years 1 months ago
2006
ACM
Managing large-scale time series databases has attracted significant attention in the database community recently. Related fundamental problems such as dimensionality reduction, tr...
104
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CIKM
2005
Springer
15 years 7 months ago
2005
Springer
Document-centric XML is a mixture of text and structure. With the increased availability of document-centric XML content comes a need for query facilities in which both structural...
CIKM
2009
Springer
15 years 8 months ago
2009
Springer
We introduce a new theoretical derivation, evaluation methods, and extensive empirical analysis for an automatic query expansion framework in which model estimation is cast as a r...
ICDM
2007
IEEE
15 years 7 months ago
2007
IEEE
Data mining algorithms use various Trie and bitmap-based representations to optimize the support (i.e., frequency) counting performance. In this paper, we compare the memory requi...