algorithms
| < 60 | 60-100 | 100-300 | > 300 |
---|
twoclass | 31 | 8 | 3 | 1 |
twoclassbal | 0 | 0 | 0 | 0 |
PSoL | 22 | 6 | 0 | 1 |
SPE-RNE | 0 | 0 | 0 | 0 |
- When the number of negative examples is far more than positive examples, imbalanced problem occurs and the algorithm can not recall any true positive examples for some functional classes. As a result, P = 0 and R = 0 result in F 1 = NaN (Not a Number) in matlab. Table 2 shows the number of NaN for each functional group.