Algorithms A puzzle, and a cause for concern Kaiser Fung, founder of Principal Analytics Prep and author of Numbersense, reports on a disturbing encounter with Google News.
Algorithms Dead man tells no tales but dead statistician had the story down Kaiser Fung, author of Numbersense and founder of Principal Analytics Prep, explains the preliminary finding about the death of a Tesla driver, and warns about drawing the wrong conclusions due to a biased sample.
Algorithms If you are using Facebook Ads split testing (A/B testing), stop fooling yourself Kaiser Fung, founder of Principal Analytics Prep, and former director of Applied Analytics at Columbia University, explains why you can't run proper A/B tests on Facebook
Algorithms Pre-processing data is not just about correcting errors Exploration of IMDB rating data, by Kaiser Fung, founder of Principal Analytics Prep
Aggregation Good models + Bad data = Bad analysis Example showing how to diagnose bad data in data science models
Algorithms What do these items have in common? What do the following items have in common? A. Motion-detection light switch