Viterbi Backtrace

Isn’t it more correct to use “Backtrace” not “Backward” in the Lesson “Viterbi Backward Pass” and Exercise 3.3 ; aren’t you causing confusion with the Forward-Backward training algorithm? I thought there wasn’t a backward “algorithm” in Viterbi, (“Now you will implement the Viterbi backward algorithm.”) it’s just considered book-keeping, no?

Hi @Christine

I would argue that it isn’t more correct to use “Backtrace”. You could but it wouldn’t be more correct. Algorithm is set of rules to be followed in calculations and this is what viterbi_backward function is/does. It is not some kind of list or other object that we populated before so we could just now simply “backtrace” without using any rules and calculations.