Sensitivity/PPV curve. A graph showing how sensitivity and PPV change for grammars when the posterior decoding parameter γ is changed to alter the frequency of base–pair prediction. The parameter γ ranged from 0.05 to 5 in increments of 0.05 for each grammar, and the sensitivity and PPV were measured on the full evaluation set. Grammar GG6 shows further strong performance here, having the largest area underneath the graph.
WJ Anderson et al. BMC Bioinformatics 2012 13:78 doi:10.1186/1471-2105-13-78