SVM with non-lemmatized verbs-nouns-adjectives features reaches 87.3% accuracy on a new Brazilian Portuguese email corpus, outperforming lemmatized versions.
Baselines and bigrams: Simple, good sentiment and topic classification,
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Development of email classifier in Brazilian Portuguese using feature selection for automatic response
SVM with non-lemmatized verbs-nouns-adjectives features reaches 87.3% accuracy on a new Brazilian Portuguese email corpus, outperforming lemmatized versions.