12487 search results - page 1970 / 2498 » Graspable Work Modeling |
211
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SIGMOD
2003
ACM
16 years 7 months ago
2003
ACM
Modern database systems provide not only powerful data models but also complex query languages supporting powerful features such as the ability to create new database objects and ...
182
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PODS
2005
ACM
16 years 7 months ago
2005
ACM
Some promising recent schemes for XML access control employ encryption for implementing security policies on published data, avoiding data duplication. In this paper we study one ...
192
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PODS
2008
ACM
16 years 7 months ago
2008
ACM
In the rank join problem, we are given a set of relations and a scoring function, and the goal is to return the join results with the top K scores. It is often the case in practic...
214
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PODS
2008
ACM
16 years 7 months ago
2008
ACM
We present a formal framework for capturing the provenance of data appearing in XQuery views of XML. Building on previous work on relations and their (positive) query languages, w...
148
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EDBT
2008
ACM
16 years 7 months ago
2008
ACM
k-anonymization is an important privacy protection mechanism in data publishing. While there has been a great deal of work in recent years, almost all considered a single static r...