Meta analysis performance metrics for neural network models.

Meta-analysis of ILI rate forecasts around the peak of a flu season for FF, SRNN, and IRNN. δ-p denotes the temporal difference (in days) in forecasting the peak of the flu seasons 2015/16, 2016/17, 2017/18, and 2018/19, respectively. Negative / positive values indicate an earlier / later forecast. Avg. δ-yp measures the average magnitude difference in the estimate of the peak of the flu season between a forecasting model and CDC. MAE-p is the MAE when the ILI rate is above the seasonal mean plus one standard deviation. SMAPE-p (%) is the symmetric mean absolute percentage of error for the same time periods. (XLSX)