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Ad Hoc Retrieval with the Persian Language

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Multilingual Information Access Evaluation I. Text Retrieval Experiments (CLEF 2009)

Part of the book series: Lecture Notes in Computer Science ((LNISA,volume 6241))

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Abstract

This paper describes our participation to the Persian ad hoc search during the CLEF 2009 evaluation campaign. In this task, we suggest using a light suffix-stripping algorithm for the Farsi (or Persian) language. The evaluations based on different probabilistic models demonstrated that our stemming approach performs better than a stemmer removing only the plural suffixes, or statistically better than an approach ignoring the stemming stage (around +4.5%) or a n-gram approach (around +4.7%). The use of a blind query expansion may significantly improve the retrieval effectiveness (between +7% to +11%). Combining different indexing and search strategies may further enhance the MAP (around +4.4%).

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Author information

Authors and Affiliations

  1. Computer Science Department, University of Neuchatel, Rue Emile Argand 11, 2009, Neuchâtel, Switzerland

    Ljiljana Dolamic & Jacques Savoy

Authors
  1. Ljiljana Dolamic
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  2. Jacques Savoy
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Editor information

Editors and Affiliations

  1. ISTI-CNR, Area Ricerca CNR, Via Moruzzi, 1, 56124, Pisa, Italy

    Carol Peters

  2. Department of Information Engineering, University of Padua, Via gradenigo, 6/a, 35131, Padova, Italy

    Giorgio Maria Di Nunzio

  3. Aalto Univesity, P.O. Box 15400, 00076, Aalto, Finland

    Mikko Kurimo

  4. University of Hildesheim, 31141, Hildesheim, Germany

    Thomas Mandl

  5. ELDA/ELRA, 75013, Paris, France

    Djamel Mostefa

  6. LSI-UNED, 28040, Madrid, Spain

    Anselmo Peñas

  7. Matrixware, 1060, Vienna, Austria

    Giovanna Roda

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© 2010 Springer-Verlag Berlin Heidelberg

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Dolamic, L., Savoy, J. (2010). Ad Hoc Retrieval with the Persian Language. In: Peters, C., et al. Multilingual Information Access Evaluation I. Text Retrieval Experiments. CLEF 2009. Lecture Notes in Computer Science, vol 6241. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-15754-7_12

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  • DOI: https://doi.org/10.1007/978-3-642-15754-7_12

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-15753-0

  • Online ISBN: 978-3-642-15754-7

  • eBook Packages: Computer ScienceComputer Science (R0)

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