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WWW
2004
ACM
14 years 10 months ago
2004
ACM
In the past few years, a number of constraint languages for XML documents has been proposed. They are cumulatively called schema languages or validation languages and they compris...
SAC
2009
ACM
14 years 2 months ago
2009
ACM
The XML has undoubtedly become a standard for data representation and manipulation. But most of XML documents are still created without the respective description of their structu...
DEXAW
2007
IEEE
14 years 1 months ago
2007
IEEE
The problem of efficiently evaluating XPath and XQuery queries has become increasingly significant since more and more XML data is stored in its native form. We propose a novel op...
ICDT
2007
ACM
14 years 1 months ago
2007
ACM
Abstract. We review key constraints in the context of XML as introduced by Buneman et al. We show that one of the proposed inference rules is not sound in general, and the axiomati...
WEBI
2001
Springer
14 years 2 months ago
2001
Springer
In the proposed data model for XML databases, an XML element is directly represented as a ground (variable-free) XML expression—a generalization of an XML element by incorporatio...