Re:The life and death of Google Flu Trends
by jarfil on Tuesday November 05, 2019 @08:02PM
(#21458718)
They correct the predictions for past data, but I'm sceptical as to whether it's possible to correct for emerging feedback loops when the results of the analysis are public and cause a change in the behavior patterns being analyzed.
https://www.ncbi.nlm.nih.gov/pubmed/26234783
Instead they release it to other groups who use it as a single combined with others for predictions.