1832 search results - page 109 / 367 » Querying RDF Data Using A Multigraph-based Approach |
261
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ICDE
2006
IEEE
16 years 7 months ago
2006
IEEE
Database columns are often correlated, so that cardinality estimates computed by assuming independence often lead to a poor choice of query plan by the optimizer. Multidimensional...
175
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AMW
2009
15 years 7 months ago
2009
Abstract. Peer data sharing systems use either schema-level or data-level mappings to resolve schema as well as data heterogeneity among data sources (peers). Schema-level mappings...
145
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PVLDB
2010
15 years 4 months ago
2010
In XML search systems twig queries specify predicates on node values and on the structural relationships between nodes, and a key operation is to join individual query node matche...
183
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KDD
2009
ACM
16 years 1 months ago
2009
ACM
Many applications in surveillance, monitoring, scientific discovery, and data cleaning require the identification of anomalies. Although many methods have been developed to iden...
259
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SIGMOD
2006
ACM
16 years 6 months ago
2006
ACM
We present Avatar Semantic Search, a prototype search engine that exploits annotations in the context of classical keyword search. The process of annotations is accomplished offli...