From: Automated time activity classification based on global positioning system (GPS) tracking data
 |  |  | Indoor (modeled) | Outdoor static (modeled) | Outdoor walking (modeled) | In-vehicle travel (modeled) | Sensitivityb | Specificityc | Precisiond |
---|---|---|---|---|---|---|---|---|---|
HCTLS random forest modele | 10-fold cross validationf | Indoor (coded) | 21959 | 6177 | 1604 | 260 | 73.2% | 81.8% | 64.1% |
 |  | Outdoor static (coded) | 9777 | 9749 | 3596 | 1830 | 39.1% | 81.7% | 42.3% |
 |  | Outdoor walking (coded) | 1052 | 1820 | 9931 | 477 | 74.8% | 92.9% | 62.5% |
 |  | In-vehicle travel (coded) | 1475 | 5307 | 750 | 21762 | 74.3% | 96.2% | 89.4% |
 | Evaluation against the full UCI dataset | Indoor (coded) | 82874 | 26278 | 170 | 314 | 75.6% | 91.6% | 98.9% |
 |  | Outdoor static (coded) | 850 | 3137 | 35 | 214 | 74.1% | 76.2% | 10.1% |
 |  | Outdoor walking (coded) | 101 | 993 | 555 | 244 | 29.3% | 99.8% | 67.7% |
 |  | In-vehicle travel (coded) | 0 | 515 | 60 | 4562 | 88.8% | 99.3% | 85.5% |
UCI random forest modelg | 10-fold cross validationf | Indoor (coded) | 3978 | 860 | 120 | 42 | 79.6% | 99.0% | 97.3% |
 |  | Outdoor static (coded) | 109 | 3285 | 471 | 371 | 77.5% | 90.2% | 73.6% |
 |  | Outdoor walking (coded) | 0 | 170 | 1313 | 410 | 69.4% | 94.4% | 62.1% |
 |  | In-vehicle travel (coded) | 0 | 146 | 210 | 4781 | 93.1% | 92.6% | 85.3% |
 | Evaluation against the full the full HCTLS dataset | Indoor (coded) | 153216 | 54796 | 128829 | 1894 | 45.2% | 92.8% | 96.9% |
 |  | Outdoor static (coded) | 3519 | 6590 | 13015 | 1828 | 26.4% | 84.5% | 10.0% |
 |  | Outdoor walking (coded) | 320 | 725 | 11840 | 395 | 89.2% | 63.0% | 7.5% |
 |  | In-vehicle travel (coded) | 999 | 3464 | 3550 | 21281 | 72.6% | 98.9% | 83.8% |