19892 search results - page 409 / 3979 » The POSTGRES Data Model |
326
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ICDE
2000
IEEE
16 years 8 months ago
2000
IEEE
XML is here as the internet standard for information exchange among e-businesses and applications. With its dramatic adoption and its ability to model structured, unstructured and...
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...
194
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DOLAP
1998
ACM
15 years 11 months ago
1998
ACM
Though designing a data warehouse requires techniques completely different from those adopted for operational systems, no significant effort has been made so far to develop a comp...
204
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ER
1998
Springer
15 years 11 months ago
1998
Springer
Data warehouses are complex systems that have to deliver highly-aggregated, high quality data from heterogeneous sources to decision makers. Due to the dynamic change in the requir...
157
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EDM
2008
15 years 8 months ago
2008
In this paper we compare different data mining methods and techniques for classifying students based on their Moodle usage data and the final marks obtained in their respective cou...