349 search results - page 44 / 70 » Query Rewriting for Semistructured Data |
100
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DAWAK
1999
Springer
15 years 6 months ago
1999
Springer
A data warehouse DW can be seen as a set of materialized views de ned over remote base relations. When a query is posed, it is evaluated locally, using the materialized views, wi...
138
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SIGMOD
2010
ACM
15 years 2 months ago
2010
ACM
Automated extraction of structured data from Web sources often leads to large heterogeneous knowledge bases (KB), with data and schema items numbering in the hundreds of thousands...
117
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ER
2003
Springer
15 years 7 months ago
2003
Springer
Many Internet-based applications have adopted XML as the standard data exchange format. These XML data are typically stored in its native form, thus creating the need to present XM...
210
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VLDB
2001
ACM
16 years 2 months ago
2001
ACM
The problem of answering queries using views is to find efficient methods of answering a query using a set of previously materialized views over the database, rather than accessin...
117
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VLDB
2005
ACM
15 years 7 months ago
2005
ACM
The Web has been rapidly “deepened” by myriad searchable databases online, where data are hidden behind query forms. Helping users query alternative “deep Web” sources in ...