Comment by balamaci

Not to mention how hard is to have a standardization. Doesn't do any good if the data is not guaranteed to have been measured in somewhat similar conditions. Thinking about my cholesterol. I've seen so much fluctuation on my own blood results between labs. They blame it on the "bad chemical reactives". And that is even a somewhat standardized numerical values, but what about subjective symptom: "I have a sand in eye sensation". For ML this must be translated to a numerical value. Does it feel like a 1 or a 1,5 sensation out of 10, how can we make sure we have the same understanding?