Table 2.
Best leave-one-participant-out performance results for eating detection (sliding window = 50 seconds) when taking into account sensor data from the instrumented left hand, right hand, and both. Notice the gain in performance with the left-hand when either L1 or L2 normalization is applied to the data during pre-processing (also shown in Figure 3).
Preprocessing | Left Hand (F-score) | Right Hand (F-score) | Both Hands (F-score) |
---|---|---|---|
MinMax Scaling | 48.9% | 70.5% | 69.1% |
L1 Norm | 70.7% | 75.9% | 74.9% |
L2 Norm | 71.8% | 75.7% | 76.3% |