349 search results - page 30 / 70 » Query Rewriting for Semistructured Data |
130
Voted
AWIC
2005
Springer
15 years 9 months ago
2005
Springer
In data integration systems there is a problem of answering queries through a target schema, given a set of mappings between source schemas and the target schema, and given that th...
209
Voted
ICDE
2003
IEEE
16 years 5 months ago
2003
IEEE
In order to publish a nested XML document from flat relational data, multiple SQL queries are often needed. The efficiency of publishing relies on how fast these queries can be ev...
240
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POPL
2008
ACM
16 years 4 months ago
2008
ACM
An ad hoc data source is any semistructured data source for which useful data analysis and transformation tools are not readily available. Such data must be queried, transformed a...
154
Voted
PODS
2004
ACM
16 years 3 months ago
2004
ACM
Data exchange is the problem of taking data structured under a source schema and creating an instance of a target schema. Given a source instance, there may be many solutions ? ta...
161
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SSDBM
2009
IEEE
15 years 10 months ago
2009
IEEE
Scientific experiments produce large volumes of data represented as complex objects that describe independent events such as particle collisions. Scientific analyses can be express...