Why was this customer denied: global or local explanation?
This tests matching questions to explanation scope. Global methods show overall behavior; local methods explain one prediction. Specific denials need local methods like SHAP. A red flag is using global summaries like permutation importance or PDPs for a case.
This tests matching stakeholder questions to explanation scope. Global methods reveal overall trends, such as permutation importance or PDPs. Local methods explain one prediction by showing which features drove that outcome, using tools like SHAP or LIME. When a PM asks why a specific customer was denied a loan, give a local explanation because global averages can hide drivers of an individual case. A red flag is answering with global summaries like feature importance, which describe the model but do not justify a single decision.
Read the original → christophm.github.io
- #interpretability
- #mlops
- #explainability
- #shap
- #interview
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