Measuring Spam Filter Accuracy
Here are various schemes used to measure spam-filter accuracy. First, multiple-figure measurement schemes:
- FpFnPercentages: our favourite!
- BattingAverage: John Graham-Cumming's new system
- PredictiveValue: how the MDs do it
- PrecisionAndRecall: how text classifiers do it
Single-figure measurements:
- TotalCostRatio: Ion Androutsopoulos' scheme
And measurements across a range of thresholds:
- RocGraphs: the radar operator's favourite