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Temporal XML

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Encyclopedia of Database Systems

Synonyms

Temporal semi-structured data

Definition

Temporal XML is a timestamped instance of an XML data model or, more literally, an XML document in which specially-interpreted timestamps are present. In general, an XML data model instance is a tree or graph in which each node corresponds to an element, attribute, or value, and each edge represents the lexical nesting of the child in the parent’s content. In temporal XML, a timestamp is added to some nodes or edges in the instance. The timestamp represents the lifetime of the node or edge in one or more temporal dimensions, usually valid time or transaction time. As an example, Fig. 1 shows a fragment of a temporal XML data model. The bibliographic data in the figure contains information about publishers, books, and authors. The figure also has timestamps that represent when each piece of data was entered into the data collection (i.e., the timestamps represent the transaction-timelifetime of each element). The bibliography began on...

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Recommended Reading

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Author information

Authors and Affiliations

  1. Utah State University, Logan, UT, USA

    Curtis Dyreson

  2. University of Bologna, Bologna, Italy

    Fabio Grandi

Authors
  1. Curtis Dyreson
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  2. Fabio Grandi
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Editor information

Editors and Affiliations

  1. College of Computing, Georgia Institute of Technology, 266 Ferst Drive, 30332-0765, Atlanta, GA, USA

    LING LIU (Professor) (Professor)

  2. Database Research Group David R. Cheriton School of Computer Science, University of Waterloo, 200 University Avenue West, N2L 3G1, Waterloo, ON, Canada

    M. TAMER ÖZSU (Professor and Director, University Research Chair) (Professor and Director, University Research Chair)

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© 2009 Springer Science+Business Media, LLC

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Dyreson, C., Grandi, F. (2009). Temporal XML. In: LIU, L., ÖZSU, M.T. (eds) Encyclopedia of Database Systems. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-39940-9_411

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