Engineering Sandbox rollout · bundle-mounted ML essays
How does one threshold become a point on the ROC curve?
Follow the threshold sweep and compare true-positive and false-positive rates. Each cutoff contributes a point; the full curve describes the ranking across cutoffs. AUC summarizes that ranking, not the accuracy or cost of a chosen operating threshold.
How to use this page
Compare a strict cutoff with a permissive one in the threshold scene. Track recovered positives and newly admitted negatives, then locate those rates on the ROC axes. The denominators are actual positives and actual negatives, not predicted positives.
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