摘要：Text classification is a supervised technique that uses labelled training data to learn the classification system and then automatically classifies the remaining text using the learned system. This paper investigates Naïve Bayesian algorithm based on Chi Square features selection method. The base of our comparisons are macro F1, macro recall and macro precision evaluation measures. The experimental results compared against different Arabic text categorization data sets provided evidence that feature selection often increases classification accuracy by removing rare terms.
关键词：Text Categorization; Naïve Bayesian; Arabic Text Data; Chi Square.
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