Research Article
Smartwatch-Based Legitimate User Identification for Cloud-Based Secure Services
Table 3
Confusion matrix according to the users using 400 samples per window and magnetometer sensor.
| Users | User 1 | User 2 | User 3 | User 4 | User 5 | User 6 |
| DT classifier | User 1 | 1230 | 48 | 17 | 151 | 21 | 184 | User 2 | 39 | 1499 | 63 | 49 | 89 | 43 | User 3 | 29 | 136 | 1551 | 110 | 282 | 9 | User 4 | 160 | 101 | 125 | 1476 | 84 | 79 | User 5 | 51 | 63 | 188 | 17 | 1138 | 1 | User 6 | 263 | 22 | 3 | 37 | 3 | 1696 |
| SVM classifier | User 1 | 1005 | 73 | 19 | 168 | 52 | 302 | User 2 | 137 | 1244 | 292 | 69 | 72 | 110 | User 3 | 56 | 284 | 1124 | 167 | 511 | 15 | User 4 | 147 | 220 | 184 | 1166 | 107 | 94 | User 5 | 48 | 68 | 238 | 24 | 914 | 29 | User 6 | 343 | 28 | 23 | 178 | 26 | 1521 |
| KNN classifier | User 1 | 1300 | 41 | 21 | 233 | 45 | 318 | User 2 | 78 | 1423 | 168 | 93 | 132 | 47 | User 3 | 34 | 182 | 1311 | 134 | 353 | 48 | User 4 | 198 | 103 | 167 | 1248 | 87 | 178 | User 5 | 45 | 79 | 226 | 45 | 998 | 4 | User 6 | 168 | 24 | 29 | 64 | 2 | 1425 |
| NB classifier | User 1 | 763 | 99 | 49 | 201 | 72 | 354 | User 2 | 149 | 1047 | 224 | 103 | 75 | 200 | User 3 | 135 | 339 | 1003 | 190 | 511 | 65 | User 4 | 343 | 258 | 269 | 1050 | 298 | 368 | User 5 | 109 | 44 | 186 | 54 | 594 | 0 | User 6 | 879 | 108 | 139 | 175 | 121 | 1078 |
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