which effectively act as a second reader to a radiologist but really we haven't really cracked the top of this pyramid but there's quite a lot of work going on at the bottom I also want to show you a few challenges where I think really we we need your help in developing new methods sort of at the moment most of the techniques we use are supervised techniques so that means our training data is absolutely critical for what we do if you look at our colleagues envision what they typically do is well you go crowdsource your your labels or your