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ensembles

Everything on Ground Truth tagged “ensembles” — 2 items.

WeatherNext called Melissa's Category 5 landfall five days out News

Google DeepMind's WeatherNext predicted Hurricane Melissa's Category 5 landfall in Jamaica five days ahead at 80% confidence, and its five-day track forecasts averaged about 140 kilometres closer than the European ensemble -- roughly a day and a half of extra warning.

Ensembles: why averaging several models beats picking the best one Lesson

An ensemble runs several models on the same input and combines their answers, which reliably beats any single member because independent mistakes cancel while correct signal adds -- and it is where forecast probabilities come from.