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Erschienen in:
2005 | OriginalPaper | Buchkapitel
Detecting Changes to Hybrid XML Documents Using Relational Databases
verfasst von : Erwin Leonardi, Sri L. Budiman, Sourav S. Bhowmick
Erschienen in: Database and Expert Systems Applications
Verlag: Springer Berlin Heidelberg
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Recent works in XML change detection have focused on detecting changes to ordered or unordered XML documents. However, in real life XML documents may not always be
purely ordered
or
purely unordered
. It is indeed possible to have both ordered and unordered nodes in the
same
XML document (such documents are called
hybrid
XML). In this paper, we present a technique for detecting the changes to hybrid XML documents. In our approach, old and new versions of XML documents are first stored in a relational database. Then, the
order learning module
is used to determine the
node types
in hybrid XML. The change detection module then uses the knowledge of node types to detect the changes by issuing SQL queries. Our experimental results show that our approach produces better
result quality
compared to existing approaches.