Definition
Text documents often contain a mixture of structured and unstructured content. One way to format this mixed content is according to the adopted W3C standard for information repositories and exchanges, the eXtensible Mark-up Language (XML). In contrast to HTML, which is mainly layout-oriented, XML follows the fundamental concept of separating the logical structure of a document from its layout. This logical document structure can be exploited to allow a more focused sub-document retrieval.
XML retrieval breaks away from the traditional retrieval unit of a document as a single large (text) block and aims to implement focused retrievalstrategies aiming at returning document components, i.e., XML elements, instead of whole documents in response to a user query. This focused retrieval strategy is believed to be of particular benefit for information repositories...
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Recommended Reading
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Lalmas, M., Trotman, A. (2009). XML Retrieval. In: LIU, L., ÖZSU, M.T. (eds) Encyclopedia of Database Systems. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-39940-9_474
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DOI: https://doi.org/10.1007/978-0-387-39940-9_474
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