It was brought to our attention that equations 16 and 17 (the equations for recall and precision) contain typographic errors and should be amended as follows:
Equation 16:
recall = TP / (TP + FN)
Equation 17:
precision = TP / (TP + FP)
These amendments do not change the results or conclusions of this article.
Corrections to equations 16 and 17.
7 January 2015
It was brought to our attention that equations 16 and 17 (the equations for recall and precision) contain typographic errors and should be amended as follows:
Equation 16:
recall = TP / (TP + FN)
Equation 17:
precision = TP / (TP + FP)
These amendments do not change the results or conclusions of this article.
Competing interests
None