Monthly Archives: December 2010

R at Google

“…One interesting application is the Google Flu Trends project, which uses R to estimate current flu activity based on Google search results. Google Trends aggregates user search queries showing how often a particular word or phrase has been searched. Correlation tests are run on the search results to obtain a manageable data set of potentially relevant variables. Then using R, they massage the data and create models with optimized weights for each search term. From this, they are able to reasonably estimate current flu activity for different regions around the world.

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