It's funny because I recently used logarithms for exactly that, just on a computer. Basically, if you're using a naive Bayes classifier, you may have to multip

It's funny because I recently used logarithms for exactly that, just on a computer. Basically, if you're using a naive Bayes classifier, you may have to multiply really small probabilities. Floating point numbers are not great at multiplying really small numbers. So the trick is to take the logarithm of the probabilities and add them together.