Laplace smoothing
Also written: add-one smoothing, Smoothing (add-one, Laplace), smoothing
Adding 1 to every word count so that no word ever gets probability 0 in a class. Without it, one unseen word would zero out the whole product.
Also written: add-one smoothing, Smoothing (add-one, Laplace), smoothing
Adding 1 to every word count so that no word ever gets probability 0 in a class. Without it, one unseen word would zero out the whole product.