2853 search results - page 449 / 571 » On the Efficiency of Provenance Queries |
160
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GIS
2002
ACM
15 years 6 months ago
2002
ACM
This papers deals with multiway spatial joins when (i) there is limited time for query processing and the goal is to retrieve the best possible solutions within this limit (ii) the...
168
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TKDE
1998
15 years 6 months ago
1998
—When a multidatabase system contains textual database systems (i.e., information retrieval systems), queries against the global schema of the multidatabase system may contain a ...
151
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VLDB
2002
ACM
15 years 6 months ago
2002
ACM
The problem of indexing path queries in semistructured/XML databases has received considerable attention recently, and several proposals have advocated the use of structure indexe...
178
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VLDB
2002
ACM
15 years 6 months ago
2002
ACM
Current search engines can hardly cope adequately with fuzzy predicates defined by complex preferences. The biggest problem of search engines implemented with standard SQL is that...
179
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VLDB
2002
ACM
15 years 6 months ago
2002
ACM
All existing proposals for querying XML (e.g., XQuery) rely on a pattern-specification language that allows (1) path navigation and branching through the label structure of the XM...