Table 1.
Characteristics of the utilized datasets.
| Dataset 1 [11] | Dataset 2 [12] | Dataset 3 [13] | |
|---|---|---|---|
| Positions | 4: Backpack, Messenger Bag, Jacket Pocket, Trouser Pocket | 5: Trouser Pocket, Upper Arm, Belt, Wrist | 3: Backpack, Hand, Trouser Pocket |
| Activities | 5: Sit, Stand, Bike, Walk, Run | 6: Walk, Stand, Jog, Bike, Stairs, Sit | 9: Sit, Stand, Walk, Run, Transport, Stairs, Secondary Activities: sending an SMS, making a call, interaction with an app |
| Sensing Modalities | Acceleration, Linear Acceleration, Gravity | Acceleration, Linear Acceleration, Gravity, Gyroscope, Magnetic Field | Acceleration |
| Sensor Sampling rate | 100 Hz | 50 Hz | 100 Hz |
| Phone Models | Samsung Galaxy S3 | Samsung Galaxy S2 | Samsung Galaxy S2 and S3 Mini |
| No. of Subjects | 10 | 10 | 15 |