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ml-recall

#mean-iou

3 questions from Segmentation

Timed test

3 questions · 3 min · score and explanations at the end

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Question 1: Short answer

mediumAI-checkedSegmentation

A 3-class segmentation model is evaluated on 120 pixels. Entry nijn_{ij} counts the pixels of true class ii (row) that were predicted as class jj (column).

true \ predicted background cat dog
background 50 6 4
cat 5 21 4
dog 3 7 20

What is the mean IoU, the intersection over union averaged over the three classes?

a number between 0 and 1, 2 decimals