Structured document storage and refined declarative and navigational access mechanisms in HyperStorM |
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Authors: | Klemens Böhm Karl Aberer Erich J Neuhold Xiaoya Yang |
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Affiliation: | GMD-IPSI, Dolivostra{?}e 15, D-64293 Darmstadt, Germany; {kboehm, aberer, neuhold, yangx}@darmstadt.gmd.de, DE
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Abstract: | The combination of SGML and database technology allows to refine both declarative and navigational access mechanisms for
structured document collection: with regard to declarative access, the user can formulate complex information needs without
knowing a query language, the respective document type definition (DTD) or the underlying modelling. Navigational access is
eased by hyperlink-rendition mechanisms going beyond plain link-integrity checking. With our approach, the database-internal
representation of documents is configurable. It allows for an efficient implementation of operations, because DTD knowledge
is not needed for document structure recognition. We show how the number of method invocations and the cost of parsing can
be significantly reduced.
Edited by Y.C. Tay. Received April 22, 1996 / Accepted March 16, 1997 |
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Keywords: | :OODBMSs – SGML – Document query languages – Navigation |
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