Time-weighted Frequency Domain Audio Representation with GMM Estimator for Anomalous Sound Detection
harmonic mean of AUC-S (AUC with Source domain), AUC-T(AUC with Target domain) and pAUC
AUC-S(%)/AUC-T(%)/pAUC(%)
in Table
Method | ToyCar | ToyTrain | Bearing | Fan | Gearbox | Slider | Valve | Average |
---|---|---|---|---|---|---|---|---|
mean-GMM | 89.59/69.05/58.93 | 85.62/31.89/52.72 | 56.90/84.69/54.21 | 79.70/63.16/62.13 | 83.16/76.13/65.42 | 90.66/67.77/66.44 | 53.61/51.16/50.53 | 77.04/63.41/58.63 |
max-GMM | 79.45/40.81/51.15 | 86.36/48.31/55.27 | 63.64/62.09/51.96 | 75.05/49.98/52.19 | 73.73/69.62/57.34 | 92.36/70.19/70.46 | 94.85/89.00/69.92 | 80.78/61.43/58.33 |
TWFR-GMM | 89.59/69.05/58.93 | 88.59/46.16/58.39 | 56.90/84.69/54.21 | 79.70/63.16/62.13 | 82.93/78.28/63.60 | 95.59/80.32/73.32 | 95.99/90.40/72.43 | 84.19/73.15/63.29 |
SMOTE-TWFR-GMM | 88.99/80.26/60.41 | 89.88/46.50/59.88 | 64.15/75.57/57.12 | 83.11/61.01/63.57 | 84.91/81.41/66.62 | 95.09/84.29/76.43 | 95.64/89.49/70.15 | 85.97/74.08/64.89 |
Method | ToyCar | ToyTrain | Bearing | Fan | Gearbox | Slider | Valve | Average |
---|---|---|---|---|---|---|---|---|
mean-GMM | 95.28/82.83/79.11 | 59.41/48.48/51.43 | 71.01/71.74/57.97 | 58.88/42.25/51.73 | 89.96/80.36/64.11 | 76.98/58.07/56.28 | 51.42/53.35/51.47 | 71.85/62.44/58.87 |
max-GMM | 76.57/54.51/57.56 | 60.32/49.86/51.64 | 72.33/46.78/51.57 | 58.26/32.33/49.55 | 72.50/64.05/50.20 | 78.21/70.31/59.41 | 88.92/75.91/66.68 | 72.44/56.25/55.23 |
TWFR-GMM | 95.28/82.83/79.11 | 69.05/55.16/52.96 | 74.65/68.91/58.99 | 58.88/42.25/51.73 | 84.28/73.78/58.99 | 85.15/65.89/60.34 | 88.28/77.57/64.17 | 79.37/66.63/60.90 |
SMOTE-TWFR-GMM | 93.95/94.01/85.63 | 67.37/55.13/53.35 | 72.30/53.10/52.27 | 57.18/41.88/51.06 | 90.02/84.78/65.57 | 82.51/66.18/60.15 | 87.14/75.82/63.68 | 78.64/67.27/61.67 |
In addition to the result of weighted mean of Mean-GMM and Max-GMM, we also show the another ablation result of feature fusion by concatenating mean pooling and max pooling representation with GMM for ASD.
AUC(%)((AUC-S+AUC-T)/2)/pAUC(%)
in Table
Method | ToyCar | ToyTrain | Fan | Gearbox | Bearing | Slider | Valve | Average |
---|---|---|---|---|---|---|---|---|
Concate(Mean,max)-GMM | 78.66/58.92 | 61.79/53.50 | 71.09/60.87 | 78.61/61.23 | 67.66/53.42 | 80.97/65.89 | 80.36/57.29 | 74.17/58.73 |
Weight(Mean,Max)-GMM | 79.42/58.75 | 67.34/55.28 | 71.42/62.13 | 80.46/65.86 | 70.80/54.22 | 83.27/68.32 | 90.78/70.83 | 77.64/62.20 |
TWFR-GMM | 80.65/58.12 | 67.81/59.07 | 71.44/62.13 | 80.23/64.69 | 69.41/54.74 | 87.96/73.33 | 92.61/70.23 | 78.59/63.19 |
Method | ToyCar | ToyTrain | Fan | Gearbox | Bearing | Slider | Valve | Average |
---|---|---|---|---|---|---|---|---|
Concate(Mean,max)-GMM | 88.93/76.86 | 53.63/51.87 | 48.52/51.79 | 80.80/57.21 | 68.80/55.45 | 75.69/62.45 | 71.41/56.25 | 69.68/58.84 |
Weight(Mean,Max)-GMM | 65.56/57.56 | 54.95/51.50 | 45.22/49.57 | 68.65/49.58 | 59.55/51.57 | 79.63/64.59 | 79.90/65.01 | 64.78/55.63 |
TWFR-GMM | 89.05/79.11 | 62.10/52.96 | 50.56/51.73 | 79.03/58.99 | 71.78/58.99 | 75.52/60.34 | 82.92/64.17 | 72.99/60.90 |