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Encyclopedia of Database Systems pp 611–613Cite as

Contextualization in Structured Text Retrieval

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Definition

In information retrieval, contextualization refers to a (re)scoring method, where the relevance of a retrievable unit (e.g. document, image, sentence or passage) is estimated by taking its context into account. The context of the unit may consist of surrounding text or external texts associated with the unit by links. In contextualization the unit’s retrieval status value (RSV) is not calculated in isolation, but depending on its explicitly defined context.

Historical Background

In hyperlinked semi-structured documents, context is considered external in the form of citations and hyperlinks and internal in the form of the document’s structure and these sources of information are exploited as contextual evidence. It is hypothesized that units in a good context (having strong contextual evidence) should be better candidates to be relevant to the posed query, than those in a poor context. The term contextualization in this domain was introduced by Arvola and others [1].

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Recommended Reading

  1. Arvola P, Junkkari M, Kekäläinen J. Generalized contextualization method for XML information retrieval. In: Proceedings of the International Conference on Information and Knowledge Management; 2005. p. 20–7.

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Author information

Authors and Affiliations

  1. University of Tampere, Tampere, Finland

    Jaana Kekäläinen, Paavo Arvola & Marko Junkkari

Authors
  1. Jaana Kekäläinen
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  2. Paavo Arvola
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  3. Marko Junkkari
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Corresponding author

Correspondence to Jaana Kekäläinen .

Editor information

Editors and Affiliations

  1. Georgia Institute of Technology College of Computing, Atlanta, GA, USA

    Ling Liu

  2. University of Waterloo School of Computer Science, Waterloo, ON, Canada

    M. Tamer Özsu

Section Editor information

  1. University of Amsterdam, Amsterdam, The Netherlands

    Jaap Kamps

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Kekäläinen, J., Arvola, P., Junkkari, M. (2018). Contextualization in Structured Text Retrieval. In: Liu, L., Özsu, M.T. (eds) Encyclopedia of Database Systems. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-8265-9_81

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