Table 3: Confusion matrix and Normalized Mutual Information (NMI) for the testing set.

Predicted SVM (NMI = 0.3550)
ActivityWalking Stair climbing Stair descending

Actual Walking (%) 77.2 8.1 14.6
Stair climbing (%)10.2 77.7 12.1
Stair descending (%) 15.8 9.9 74.2

Predicted MAP (NMI = 0.5134)
ActivityWalking Stair climbing Stair descending

Actual Walking (%) 85.1 4.8 10.1
Stair climbing (%) 6.6 87.2 6.3
Stair descending (%) 12.8 5.8 81.3