Table 5 Globally top-ranked features according to a random forest model without race upsampling
From: Quantifying device type and handedness biases in a remote Parkinson’s disease AI-powered assessment
Rank | Feature name | Importance | Feature description |
|---|---|---|---|
1 | Total deviation straight line | 0.06 | Total accumulated deviation from the centerline when tracing a straight line (percentage of screen height) |
2 | Time to trace a spiral | 0.06 | Amount of time taken to trace the spiral |
3 | Net deviation straight line | 0.05 | Net accumulated deviation from the centerline when tracing a straight line (percentage of screen height) |
4 | Maximum deviation straight line | 0.05 | Maximum deviation from the centerline when tracing a straight line (percentage of screen height) |
5 | Average absolute deviation straight line | 0.05 | Average of absolute values of deviation from the centerline when tracing a straight line (percentage of screen height) |
6 | Time to trace a straight line normalized | 0.04 | Amount of time taken to trace a straight line with respect to the window width |
7 | Time to trace the spiral normalized | 0.04 | Amount of time taken to trace the spiral with respect to the window width |
8 | Maximum pixel deviation straight line | 0.03 | Maximum deviation from the centerline when tracing a straight line without regard to the window height (pixels) |
9 | Average tracing time for all tasks | 0.03 | Average time taken to complete all line-tracing tasks. |
10 | Time to trace the sine wave normalized | 0.03 | Amount of time taken to trace the sine wave with respect to the window width |
