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140
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DAWAK
2009
Springer
15 years 9 months ago
2009
Springer
Frequent constraint violations on the data stored in a database may suggest that the semantics of the represented reality is changing. In this work we propose a methodology and a t...
93
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VLDB
1991
ACM
15 years 8 months ago
1991
ACM
This paper presentsa version model which handlesdatabaseschemachangesandwhich takesevolution into account. Its originality is in allowing the development of partial schema version...
147
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ADBIS
2007
Springer
15 years 6 months ago
2007
Springer
This paper provides an answer-oriented multidimensional analysis environment. The approach is based on a conceptual point of view. We define a conceptual model that represents data...
141
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DPD
2000
15 years 4 months ago
2000
The Internet has solved the age-old problem of network connectivity and thus enabling the potential access to, and data sharing among large numbers of databases. However, enabling ...
140
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IADIS
2003
15 years 6 months ago
2003
Power transformers' failures carry great costs to electric companies since they need resources to recover from them and to perform periodical maintenance. To avoid this probl...