1832 search results - page 129 / 367 » Querying RDF Data Using A Multigraph-based Approach |
143
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WSDM
2010
ACM
16 years 3 months ago
2010
ACM
In web search, recency ranking refers to ranking documents by relevance which takes freshness into account. In this paper, we propose a retrieval system which automatically detect...
177
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BALT
2008
15 years 8 months ago
2008
Biomedical research on human subjects often requires a large amount of data to be collected by personal interviews, Internet based questionnaires, lab measurements or by extracting...
175
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JSS
2008
15 years 6 months ago
2008
Many state-of-the-art selectivity estimation methods use query feedback to maintain histogram buckets, thereby using the limited memory efficiently. However, they are "reacti...
169
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CORR
2008
Springer
15 years 6 months ago
2008
Springer
Analytical queries defined on data warehouses are complex and use several join operations that are very costly, especially when run on very large data volumes. To improve response...
153
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VLDB
2004
ACM
15 years 11 months ago
2004
ACM
We introduce an auditing framework for determining whether a database system is adhering to its data disclosure policies. Users formulate audit expressions to specify the (sensiti...