In addition to point forecasts, the participants will be encouraged to supply the prediction intervals of their forecasts, so that the expression of uncertainty is also captured.
These can be computed either with a sound statistical basis (e.g., when using statistical methods) or empirically (e.g., when using non-statistical or machine learning methods).
We note that the submission of the prediction intervals is optional so that no participant should be discouraged for participating in case of not being able to provide them. Thus, the performance of the intervals submitted will be evaluated separately for academic/scientific purposes.
More details can be found in the M4 – Competitors Guide.