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VLDB
2007
ACM
15 years 3 months ago
2007
ACM
In many applications, the underlying data (the web, an XML document, or a relational database) can be seen as a graph. These graphs may be enriched with weights, associated with t...
WEBDB
2005
Springer
15 years 3 months ago
2005
Springer
In the relational model it has been shown that the flat relational algebra has the same expressive power as the nested relational algebra, as far as queries over flat relations ...
PAKDD
2004
ACM
15 years 3 months ago
2004
ACM
Abstract. Tree structures are used extensively in domains such as computational biology, pattern recognition, XML databases, computer networks, and so on. One important problem in ...
ADBIS
2001
Springer
15 years 2 months ago
2001
Springer
Due to the rapid growth of the Web, there is an increasing need for methodologies that support the design of Web-based Information Systems (WIS). After investigating the applicatio...
TOOLS
1999
IEEE
15 years 2 months ago
1999
IEEE
Class algebra provides a natural framework for sharing of ISA hierarchies between users that may be unaware of each other's definitions. This permits data from relational dat...