“Create a confusion matrix heatmap for helpdesk routing with actual rows and predicted columns Billing, Technical and Account. Use counts: Billing 124, 18, 6; Technical 14, 109, 21; Account 5, 17, 96.”
Comprenez les décisions qui le sous-tendent.
Separate actual from predicted labels.
Reveal each error type.
Prioritize routing mistakes.
Use for a classification model with stable, labeled validation data.
Questions fréquentes
What does the diagonal show?
It shows tickets routed to their actual class correctly.
Which cells are errors?
Every off-diagonal cell is a misrouted ticket count.
Why use a validation set?
It tests performance on labeled data not used to train the model.