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Improve an Underperforming Classifier

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Your question is Improve an Underperforming Classifier. Take a moment with it on the right.

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Problem

Scenario

You've shipped a model that is underperforming against business expectations. The team wants a structured way to evaluate what is failing and how to improve it.

Question

What steps would you take to improve an underperforming model?

Key Signals

Recall·0.46AUC-ROC·0.81Accuracy·0.78F1 Score·0.52Precision·0.61

Business Context

The model is used to identify customers likely to need repaint or troubleshooting support after a purchase. Missing true issue cases is more costly than flagging some extra low-risk cases.