Table 2.
Activity recognition confusion matrix. The diagonal entries indicate the activities that were correctly categorized. The accuracy for each individual activities is shown in the last column.
| Automatically-generated activity label | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bed- toilet transiti on |
Cook | Eat | Enter home |
Leave home |
Personal hygiene |
Phone | Relax | Sleep | Work | Accuracy | ||
| Ground truth activity label | Bed- toilet transition |
18288 | 143 | 261 | 0 | 0 | 22233 | 0 | 3 | 5866 | 38 | 0.39 |
| Cook | 3 | 370300 | 1616 | 11 | 11 | 172 | 4 | 140 | 28 | 1917 | 0.99 | |
| Eat | 53 | 20528 | 9871 | 4 | 0 | 41 | 1 | 979 | 118 | 27052 | 0.17 | |
| Enter home |
0 | 195 | 0 | 1606 | 107 | 3 | 0 | 4 | 57 | 126 | 0.77 | |
| Leave home |
0 | 5 | 0 | 59 | 316 | 3 | 0 | 0 | 1 | 4 | 0.81 | |
| Personal hygiene |
15769 | 928 | 81 | 3 | 3 | 295616 | 0 | 77 | 1216 | 921 | 0.94 | |
| Phone | 0 | 21 | 2 | 0 | 0 | 4 | 8 | 34 | 73 | 1072 | 0.01 | |
| Relax | 6 | 1282 | 322 | 13 | 0 | 178 | 8 | 2030 | 1459 | 2735 | 0.25 | |
| Sleep | 33900 | 66 | 33 | 1 | 0 | 279 | 0 | 60 | 65189 | 306 | 0.65 | |
| Work | 37 | 2875 | 10544 | 66 | 17 | 489 | 20 | 497 | 237 | 71684 | 0.83 | |