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Algorithms, Merchandising and Psychology - Part 1

By Robin Morris in A Word from the Engineers, Featured on May 7, 2013

I was going to write this blog about feature hashing, a massively useful trick when building classifiers and predictive models.  It saves the time and complexity of building a dictionary and allows the hashed feature vector to be smaller than the number of possible features.  It is smaller because the number of actual features in a particular data set is often much ... Read More »