Table 5. Accuracy performance results of the male patients.
Remark that the accuracy is computed as . The columns show: the UPDRS score (marked as NaN in the case of healthy patients), the benchmark measures performances, corresponding to the MFCCs, MGDCCs, Jitter(%): frequency perturbation, Shimmer (dB): amplitude perturbation, APQ (%): amplitude perturbation quotient, PPQ (%): pitch perturbation quotient, RAP (%): relative average perturbation, CPP mean: mean of cepstral peak prominence corresponding to the mean of voice quality perturbation and CPP s.d.: variation in the cepstral peak prominence corresponding to variation in voice quality perturbation, as given in [29]. Note that the used classifier is the SVM. A cross-validation has been performed for any of the presented results and, therefore, the provided accuracy are the averaged accuracy scores. Configuration for the cross-validation for the benchmark features and the SVM are given in 7.4.
State-of-the-art Benchmark Male Results (Non-EMD Speech Data Based Approaches)—Accuracy | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Healthy Patients | ||||||||||||||||
UPDRS | Benchmark (SVM) | Benchmark—not averaged (SVM) | Benchmark—standard (SVM) | |||||||||||||
MFCCs | MGDCCs | MFCCs + MGDCCs | MFCCs | MGDCCs | MFCCs + MGDCCs | Jitter | Shimmer | APQ | PPQ | RAP | CPP mean | CPP s.d. | ||||
NaN | 0.410 | 0.515 | 0.519 | 0.500 | 0.511 | 0.558 | 0.379 | 0.583 | 0.264 | 0.327 | 0.453 | 0.463 | 0.472 | |||
NaN | 0.643 | 0.590 | 0.571 | 0.519 | 0.576 | 0.598 | 0.379 | 0.463 | 0.527 | 0.274 | 0.463 | 0.665 | 0.655 | |||
Sick Patients | ||||||||||||||||
UPDRS | Benchmark (SVM) | Benchmark—not averaged (SVM) | Benchmark—standard (SVM) | |||||||||||||
MFCCs | MGDCCs | MFCCs + MGDCCs | MFCCs | MGDCCs | MFCCs + MGDCCs | Jitter | Shimmer | APQ | PPQ | RAP | CPP mean | CPP s.d. | ||||
0 | 0.520 | 0.650 | 0.611 | 0.551 | 0.656 | 0.678 | 0.627 | 0.573 | 0.647 | 0.445 | 0.465 | 0.653 | 0.365 | |||
0 | 0.555 | 0.600 | 0.619 | 0.458 | 0.623 | 0.674 | 0.602 | 0.553 | 0.453 | 0.543 | 0.637 | 0.455 | 0.446 | |||
0 | 0.390 | 0.588 | 0.690 | 0.553 | 0.598 | 0.593 | 0.535 | 0.511 | 0.453 | 0.554 | 0.553 | 0.437 | 0.372 | |||
0 | 0.430 | 0.590 | 0.699 | 0.441 | 0.489 | 0.563 | 0.635 | 0.563 | 0.477 | 0.564 | 0.574 | 0.463 | 0.477 | |||
0 | 0.551 | 0.500 | 0.652 | 0.428 | 0.649 | 0.693 | 0.610 | 0.674 | 0.342 | 0.245 | 0.572 | 0.425 | 0.254 | |||
1 | 0.439 | 0.595 | 0.702 | 0.469 | 0.532 | 0.564 | 0.456 | 0.467 | 0.578 | 0.656 | 0.564 | 0.564 | 0.463 | |||
1 | 0.312 | 0.610 | 0.712 | 0.654 | 0.689 | 0.709 | 0.626 | 0.465 | 0.553 | 0.562 | 0.465 | 0.463 | 0.698 | |||
1 | 0.235 | 0.645 | 0.705 | 0.613 | 0.601 | 0.731 | 0.616 | 0.505 | 0.676 | 0.698 | 0.687 | 0.556 | 0.699 | |||
1 | 0.611 | 0.650 | 0.675 | 0.689 | 0.673 | 0.678 | 0.595 | 0.666 | 0.699 | 0.689 | 0.687 | 0.685 | 0.563 | |||
2 | 0.387 | 0.611 | 0.718 | 0.445 | 0.562 | 0.699 | 0.628 | 0.668 | 0.668 | 0.635 | 0.678 | 0.675 | 0.689 | |||
2 | 0.654 | 0.674 | 0.731 | 0.510 | 0.661 | 0.722 | 0.581 | 0.677 | 0.678 | 0.675 | 0.698 | 0.698 | 0.678 | |||
3 | 0.442 | 0.659 | 0.750 | 0.567 | 0.698 | 0.719 | 0.678 | 0.659 | 0.665 | 0.678 | 0.699 | 0.688 | 0.667 |