6974 search results - page 311 / 1395 » Querying Semi-Structured Data |
175
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VLDB
1998
ACM
15 years 11 months ago
1998
ACM
Many applications compute aggregate functions over an attribute (or set of attributes) to find aggregate values above some specified threshold. We call such queries iceberg querie...
190
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WEBDB
2000
Springer
15 years 10 months ago
2000
Springer
Rewriting queries using views is a powerful technique that has applications in data integration, data warehousing and query optimization. Query rewriting in relational databases i...
169
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CIKM
2010
Springer
15 years 5 months ago
2010
Springer
In recent years, there has been an explosion of publicly available RDF and OWL data sources. In order to effectively and quickly answer queries in such an environment, we present...
227
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EDBT
2010
ACM
15 years 4 months ago
2010
ACM
Spatial data are common in many scientific and commercial domains such as geographical information systems and gene/protein expression profiles. Querying for distribution patterns...
256
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SIGMOD
2007
ACM
16 years 6 months ago
2007
ACM
Partial evaluation has recently proven an effective technique for evaluating Boolean XPath queries over a fragmented tree that is distributed over a number of sites. What left ope...