AirQo Ugandan Air Quality Forecast Challenge
$5,000 USD
Predict future air quality levels and empower communities to plan and protect their health
706 data scientists enrolled, 293 on the leaderboard
ResearchForecastStructuredSDG3SDG15
Uganda
14 March—31 May
Ends in 3 days
Question

is it normal that 2 models give me the same RMSE ?

Exactly the same RMSE? lol ..not normal but nothing wrong in it.

Getting the same RMSE upto 3-4 decimals could be a coincidence, but more than that the chances are almost completely zero. Say 36.5 and 36.5 is a coincidence, 36.55 and 36.55 is again a coincidence with a smaller chance, 36.553, and 36.553, could also be a very lukcy coincidence, but if you tell me 36.5532 and 36.5532, I would say its not possible, unless the same exact method is used to generate them.

2 different models ! the same result , i know that it is impossible but i get it !! there is no explication lol

LOL, I would still say there's some mistake. Check the predictions maybe the first 10 of both models, are they same :D ?