Note, however, that the F-scores do not take the true negative rate into account, and that measures such as the Phi coefficient, Matthews correlation coefficient, Informedness or Cohen's kappa may be preferable to assess the performance of a binary classifier.
Note, however, that the F-scores do not take the true negative rate into account, and are more suited to information retrieval and information extraction evaluation where the true negatives are innumerable. Instead, measures such as the Phi coefficient, Matthews correlation coefficient, Informedness or Cohen's kappa may be preferable to assess the performance of a binary classifier.