Fig. 1From: Using electronic health records and Internet search information for accurate influenza forecastingForecasting results. The four panels show the forecasted ILI activity levels for real-time and 1 to 3 weeks into the future from ARGO (thick red), the method of Santillana et al. [11](blue), Healthmap Flu Trends system (green), and the autoregression model with 4 lags (grey), compared to the true CDC’s ILI activity level (thick black), which became available weeks later. The plot at the bottom of each panel shows the estimation error, namely the estimated value minus the true CDC’s ILI activity levelBack to article page