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Structure of the ground truth dataset. Each record describes a device and the three closest towers to the device owner’s actual home location
| device | closest | 2nd closest | 3rd closest |
|---|---|---|---|
| afa64 | 0003 | 0087 | 0043 |
| 214ab | 0022 | 0043 | 0011 |
| 1c75db | 0065 | 0022 | 0021 |
| f1599 | 0087 | 0076 | 0055 |
| d666d | 0003 | 0009 | 0087 |
| … | … | … | … |
