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113
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ER
1992
Springer
15 years 2 months ago
1992
Springer
In this paper, we address the problem of supporting more exibility on the schema of object-oriented databases. We describe a general framework based on an object-oriented data mode...
VLDB
2007
ACM
15 years 4 months ago
2007
ACM
A top-k query retrieves the k highest scoring tuples from a data set with respect to a scoring function defined on the attributes of a tuple. The efficient evaluation of top-k q...
SIGMOD
1997
ACM
15 years 2 months ago
1997
ACM
A range query applies an aggregation operation over all selected cells of an OLAP data cube where the selection is speci ed by providing ranges of values for numeric dimensions. W...
DASFAA
2006
IEEE
15 years 4 months ago
2006
IEEE
To facilitate the XML query processing, several kinds of labeling schemes have been proposed. Based on the labeling schemes, the ancestordescendant and parent-child relationships i...
186
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SIGMOD
2009
ACM
15 years 10 months ago
2009
ACM
Labeling schemes lie at the core of query processing for many XML database management systems. Designing labeling schemes for dynamic XML documents is an important problem that ha...