Ground truth dataset
The final set of stays with known correct answers: 907 stays (one record per phone) from 280 real stops. After thinning (Downsampling to MILES density), they contain 17,010 GPS points.
| Type | Stays | Share |
|---|---|---|
| Building | 531 | 58.5% |
| Street | 185 | 20.4% |
| Open space | 191 | 21.1% |
The mix of 59% building, 20% street and 21% open space comes from how the Experiment design planned the stops. Real people may visit these types in a different mix. This is a risk when the model is used on MILES (Overfitting signature).
How 1,029 stop records became 907: Ground truth cleaning.
Part of Ground truth data.
Linked from Contributions · Experiment design · Framework overview · Ground truth cleaning · Ground truth data · Overfitting signature · Study area