Joel Nicholls

Maybe "fix **saving** of dataset class **for** yaml config" would be a better name for this PR. Well, the loading was causing the error, but the way of fixing is...

I put a comment into the code because I think that someone reading the code later will not know why these two lines of code are here. (unless they look...

@a-hanamoto, please could you do a readability review when you have time

yes, it looks like there are some low score boxes that actually were correct? Maybe it is good to lower that threshold... Another point is that maybe the non-maximum suppression...