Indexing temporal XML documents

  • Authors:
  • Alberto O. Mendelzon;Flavio Rizzolo;Alejandro Vaisman

  • Affiliations:
  • University of Toronto, Department of Computer Science;University of Toronto, Department of Computer Science;Universidad de Buenos Aires, Departamento de Computación

  • Venue:
  • VLDB '04 Proceedings of the Thirtieth international conference on Very large data bases - Volume 30
  • Year:
  • 2004

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Abstract

Different models have been proposed recently for representing temporal data, tracking historical information, and recovering the state of the document as of any given time, in XML documents. We address the problem of indexing temporal XML documents. In particular we show that by indexing continuous paths, i.e. paths that are valid continuously during a certain interval in a temporal XML graph, we can dramatically increase query performance. We describe in detail the indexing scheme, denoted TempIndex, and compare its performance against both a system based on a nontemporal path index, and one based on DOM.