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The impact of preprocessing on text classification

Published: 25 November 2019 Publication History

Abstract

Preprocessing is one of the key components in a typical text classification framework. This paper aims to extensively examine the impact of preprocessing on text classification in terms of various aspects such as classification accuracy, text domain, text language, and dimension reduction. For this purpose, all possible combinations of widely used preprocessing tasks are comparatively evaluated on two different domains, namely e-mail and news, and in two different languages, namely Turkish and English. In this way, contribution of the preprocessing tasks to classification success at various feature dimensions, possible interactions among these tasks, and also dependency of these tasks to the respective languages and domains are comprehensively assessed. Experimental analysis on benchmark datasets reveals that choosing appropriate combinations of preprocessing tasks, rather than enabling or disabling them all, may provide significant improvement on classification accuracy depending on the domain and language studied on.

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    Published In

    cover image Information Processing and Management: an International Journal
    Information Processing and Management: an International Journal  Volume 50, Issue 1
    January, 2014
    234 pages

    Publisher

    Pergamon Press, Inc.

    United States

    Publication History

    Published: 25 November 2019

    Author Tags

    1. Pattern recognition
    2. Text categorization
    3. Text classification
    4. Text preprocessing

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