Mitair
An Android app that helps parents in Almaty pick departure times and routes with lower expected PM2.5 exposure.
- Period
- Jul 2026
- Organisation
- Tech Vision hackathon
- 6-hour PM2.5 forecast error vs persistence
- −21.7%
- 6-hour PM2.5 forecast error vs persistence
Smart City & GreenTech track. The app compares walking routes as well as departure times, and maps community incident reports.
Forecast
A LightGBM model for Almaty PM2.5, tested on a temporal holdout against a persistence baseline.
PersistenceLightGBM
- 1 hour2.62 → 2.38−9.2%
- 6 hours6.98 → 5.47−21.7%
- 12 hours8.56 → 6.50−24.1%
- 24 hours7.94 → 7.23−8.9%
Data
| Horizon | Persistence MAE | LightGBM MAE | Change |
|---|---|---|---|
| 1 h | 2.624 | 2.383 | −9.2% |
| 6 h | 6.981 | 5.466 | −21.7% |
| 12 h | 8.559 | 6.499 | −24.1% |
| 24 h | 7.941 | 7.234 | −8.9% |
Limits
The forecast model is not yet wired into the app. The exposure score is a heuristic, and school and community data in the demo are seeded.