
Google Flu Trends: How Algorithms Get Lost
March 15, 2014
Run a query for Google Flu Trends on Google. The results point to the Google Flu Trends Web site at http://bit.ly/1ny9j58. The graphs and charts seem authoritative. I find the colors and legends difficult to figure out, but Google knows best. Or does it?
A spate of stories have appeared in New Scientist, Smithsonian, and Time that pick up the threat that Google Flu Trends does not work particularly well. The Science Magazine podcast presents a quite interesting interview with David Lazar, one of the authors of “The Parable of Google Flu: Traps in Big Data Analysis.”
The point of the Lazar article and the greedy recycling of the analysis is that algorithms can be incorrect. What is interesting is the surprise that creeps into the reports of Google’s infallible system being dead wrong.
For example, Smithsonian Magazine’s “Why Google Flu Trends Can’t Track the Flu (Yet)” states, “The vaunted big data project falls victim to periodic tweaks in Google’s own search algorithms.” The write continues:






