When performance estimation is off
Imagine you're a data scientist at a bank, working on a loan default use case. You receive labels to validate your model and performance estimation algorithm every month. During one particular month, you observe that many customers with well-paid jobs are defaulting more often due to a significant surge in inflation and a corresponding job crisis.
As you compare the estimated and realized performance, you notice a significant disparity between them.
What could be why the performance estimation algorithm is not as effective in this situation?
This exercise is part of the course
Monitoring Machine Learning in Python
Hands-on interactive exercise
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