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What is an "accuracy" of 83%? Do 83% of predicted diabetes cases actually have diabetes? Or did 83% of those who have diabetes get diagnosed as such? It's about
by teiferer 1y ago
What is an "accuracy" of 83%? Do 83% of predicted diabetes cases actually have diabetes? Or did 83% of those who have diabetes get diagnosed as such? It's about precision vs. recall. You can improve one by sacrificing the other. Boiling it down to one number is hard.
- topaz0 1y agoThey use the area under the receiver operating curve, which is a pretty standard way to boil that down to one number.
- teiferer 1y agoAh, thanks for the pointer! https://en.m.wikipedia.org/wiki/Receiver_operating_characteristic https://en.m.wikipedia.org/wiki/Receiver_operating_character... So, 83% is actually not that great, given that you can achieve 50% by guessing randomly.