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175
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APCCM
2006
15 years 8 months ago
2006
Data Warehouses (DWs) use an omnipresent time dimension for keeping track of changes in measure values. However, this dimension cannot be used to model changes in other dimensions...
185
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WWW
2006
ACM
16 years 7 months ago
2006
ACM
There are principal differences between the relational model and XML's tree model. This causes problems in all cases where information from these two worlds has to be brought...
181
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BTW
2007
Springer
16 years 26 days ago
2007
Springer
: As Peer Data Management Systems (PDMS) are a focus of current research, there are lots of approaches like query processing or routing issues that have to be evaluated. Since ther...
242
Voted
SIGMOD
2007
ACM
16 years 6 months ago
2007
ACM
The energy efficiency of computer systems is an important concern in a variety of contexts. In data centers, reducing energy use improves operating cost, scalability, reliability,...
177
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ACIIDS
2009
IEEE
15 years 11 months ago
2009
IEEE
— In this paper I show how ontologies support the student modelling through the semantic definition of concepts that depict a student. The aim is to outline the framework for bui...