8220 search results - page 283 / 1644 » Querying XML Data |
186
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SIGMOD
2004
ACM
16 years 6 months ago
2004
ACM
XML is widely praised for its flexibility in allowing repeated and missing sub-elements. However, this flexibility makes it challenging to develop a bulk algebra, which typically ...
162
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VLDB
2005
ACM
16 years 5 days ago
2005
ACM
We extend the OLAP data model to represent data ambiguity, specifically imprecision and uncertainty, and introduce an allocation-based approach to the semantics of aggregation qu...
148
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ERCIMDL
2006
Springer
15 years 10 months ago
2006
Springer
Libraries, museums, and other organizations make their electronic contents available to a growing number of users on the Web. A large fraction of the information published is store...
154
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CIDR
2009
15 years 7 months ago
2009
We consider how to support interactive querying over webscale data. The basic approach is to view querying as a two-phase activity: first supply a query template, and later supply...
262
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ICDE
1998
IEEE
16 years 8 months ago
1998
IEEE
Semistructured data may be irregular and incomplete and does not necessarily conform to a fixed schema. As with structured data, it is often desirable to maintain a history of cha...