Table 4 Performance of non-wear detection methods in visual quality control.
Wear Sensor Mean (SD) | Choi Algorithm Mean (SD) | Troiano Algorithm Mean (SD) | Van Hees Algorithm Mean (SD) | 4-method Majority Algorithm: Wear Sensor, Choi, Troiano, Van Hees Mean (SD) | 3-method Majority Algorithm: Wear Sensor, Choi, van Hees Mean (SD) | |
|---|---|---|---|---|---|---|
Total Rows | 6,702,388 | 6,702,388 | 6,702,388 | 6,624,026 | 6,624,026 | 6,624,026 |
Total Days | 4,654.44 | 4,654.44 | 4,654.44 | 4,600.02 | 4,600.02 | 4,600.02 |
Missing | 1,823,252 | 1,823,252 | 1,823,252 | 1,901,614 | 1,901,614 | 1,901,614 |
Accuracy | 0.8839 (0.2722) | 0.9816 (0.0564) | 0.9609 (0.0683) | 0.9866 (0.0474) | 0.9884 (0.0526) | 0.9887 (0.0517) |
Positive Predictive Value | 0.6197 (0.4703) | 0.9101 (0.2762) | 0.6723 (0.4528) | 0.9515 (0.2063) | 0.9665 (0.1711) | 0.9641 (0.1767) |
Sensitivity | 0.9444 (0.2225) | 0.9617 (0.1707) | 0.9823 (0.1067) | 0.9289 (0.2013) | 0.9608 (0.1609) | 0.9592 (0.1620) |
Specificity | 0.9154 (0.2326) | 0.9885 (0.0491) | 0.9632 (0.0717) | 0.9967 (0.0370) | 0.9982 (0.0125) | 0.9972 (0.0280) |
