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108
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PET
2004
Springer
15 years 4 months ago
2004
Springer
There are a variety of well-known models for access control developed for purposes like formally modeling the access rights on files, databases, and web resources. However, the ex...
103
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CIDR
2009
15 years 4 days ago
2009
Over the past 40 years, database management systems (DBMSs) have evolved to provide a sophisticated variety of data management capabilities. At the same time, tools for managing q...
VLDB
1989
ACM
15 years 3 months ago
1989
ACM
: We describe the architecture of a relational databasesystem that is extensible by user-defined data types and operations, including relation operations. The central concept is to...
AIED
2005
Springer
15 years 4 months ago
2005
Springer
In this paper, we show how using data mining algorithms can help discovering pedagogically relevant knowledge contained in databases obtained from Web-based educational systems. Th...
COOPIS
1994
IEEE
15 years 3 months ago
1994
IEEE
In this paper, we present a query translation algorithm which allows object-oriented queries to be automatically translated into a relational query language. Our goal is to provid...