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Encyclopedia of Database Systems pp 63–71Cite as

Aggregation-Based Structured Text Retrieval

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Definition

Text retrieval is concerned with the retrieval of documents in response to user queries. This is achieved by (i) representing documents and queries with indexing features that provide a characterisation of their information content, and (ii) defining a function that uses these representations to perform retrieval. Structured text retrieval introduces a finer-grained retrieval paradigm that supports the representation and subsequent retrieval of the individual document components defined by the document’s logical structure. Aggregation-based structured text retrieval defines (i) the representation of each document component as the aggregation of the representation of its own information content and the representations of information content of its structurally related components, and (ii) retrieval of document components based on these (aggregated) representations.

The aim of aggregation-based approaches is to improve retrieval effectiveness by capturing and exploiting the...

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Author information

Authors and Affiliations

  1. Center for Mathematics and Computer Science, Amsterdam, The Netherlands

    Theodora Tsikrika

Authors
  1. Theodora Tsikrika
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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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Tsikrika, T. (2009). Aggregation-Based Structured Text 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_14

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