The First Scribble Does Most of the Work
TL;DR for operators When an automated system can be corrected repeatedly, the product question is not simply whether correction helps. It is how many corrections are worth asking a user to make. Sherif and colleagues test that question in interactive multitracer PET/CT lesion segmentation.1 Mean Dice rises from 0.5539 with no correction to 0.7223 after one scribble and 0.7512 after five. Lesion-level F1 follows the same pattern: 0.5281, then 0.7036, then 0.7326. Roughly 85% of the five-round gain arrives after the first correction. ...