Table 4.
Bootstrap estimated classification accuracy and area under ROC (AUC) of VizRank compared to four standard machine learning algorithms
| Classification Accuracy (%) | Area under ROC (AUC) | |||
|---|---|---|---|---|
| 2 age classes | 3 age classes | 2 age classes | 3 age classes | |
| VizRank | 89.5 ± 11.5 | 73.0 ± 14.3 | 0.94 ± 0.12 | 0.85 ± 0.12 |
| SVM | 87.6 ± 19.8 | 76.2 ± 18.9 | 0.91 ± 0.21 | 0.92 ± 0.13 |
| kNN | 85.7 ± 11.9 | 77.5 ± 13.1 | 0.90 ± 0.13 | 0.87 ± 0.11 |
| Naive Bayes | 84.6 ± 11.8 | 62.9 ± 14.1 | 0.87 ± 0.11 | 0.77 ± 0.12 |
| Decision trees | 87.2 ± 8.2 | 72.6 ± 13.3 | 0.87 ± 0.09 | 0.83 ± 0.11 |