Classifier details

Basic data
Classifier ID23
TitleSentiment (Product reviews)
DescriptionThis classifier has been trained with product reviews classified by sentiment (positive or negative). Use it to classify reviews and articles.
Created2012-01-17 14:22:56 MET
Distinct texts35625
Precision (biased) 80.5558% (sample standard deviation: 0.74506%)
Precision (unbiased) 80.814% (sample standard deviation: 0.674417%)
Precision has been measured with 10-fold cross-validation

Training class distribution

Precision per class

Class Precision (biased) Precision (unbiased) % of mistakes (biased) % of mistakes (unbiased)
positive 83.5503% 82.2868% 50.3826% 45.8522%
negative 76.3085% 78.7251% 49.6174% 54.1478%

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