K-fold cross validation

K-fold cross validation is not a topic that Prof Ng covers in this specialization (at least that I can remember). I googled it and found this explanation on Jason Brownlee’s website.

Having taken a quick look at Jason’s explanation, I think I have the basic idea of what K-fold cross validation means. But with that (perhaps sketchy) understanding, I am having trouble making any sense of your question. This is purely a guess on my part, but are you sure you understood the point that you start the training completely from scratch on each “fold”, right?

But I think the higher level point is that you need to give us more to go on here: please give a more detailed explanation of what you tried and what results you saw. Please include information about the nature of your dataset. Is it one of the ones from the assignments here? Or from somewhere else? How many total samples does it contain?