How to understand bias metrics such as CI, DPL etc

In this url Class Imbalance (CI) - Amazon SageMaker, CI = (na - nd)/(na + nd)

What is Na, Nd exactly? Take for example, in week 2 lab, blouses had a CI of 0.74, how is it calculated?

Hello @lihui5126 ,

you can start with the official AWS documentation.

Maybe you’ll find this thread useful.

regards,

@mleiria Thank you very much, the thread is very helpful!

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