Measuring the effectiveness of government guidelines
Flu Trends and Search Data
So does using search data work? The evidence of GFT would argue not. On the surface it looks great, but as Seth comments, searches are also influenced by the media and awareness. As soon as people here about the correlation, their inquisitiveness takes over and they search, even if they have no symptoms. The waters get very muddied. The data nerds at the tech giants are no doubt looking at how to clean the data to help gain insights. We wish them all the best!