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Comment by emil-lp | Hacker News Reader

Please always present the confusion matrix. One number is (almost) useless.

I can detect 100% by

    def detect(x):
        Return True

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They only had positive samples, so they could and did only report true and false positives

While they only had positive samples, the AIs sometimes reported cancer in the wrong location, meaning a double whammy: It failed to detect the cancer, and misdiagnosed a non-cancer.

From the paper:

> Two cancers had abnormality scores greater than 10 but were not correctly localized and were therefore categorized as AI-missed.

There were no healthy controls, so they can only measure sensitivity, not specificity in this design.

100% of the titles are not specific enough on sensitive matters.

This fails actually (assuming it's Python), "return" needs smaller case "r". But you could rewrite it in Haskell or Rust for safety.

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