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Microsoft Exam DP-100 Topic 7 Question 69 Discussion

Actual exam question for Microsoft's DP-100 exam
Question #: 69
Topic #: 7
[All DP-100 Questions]

Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.

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You train a classification model by using a logistic regression algorithm.

You must be able to explain the model's predictions by calculating the importance of each feature, both as an overall global relative importance value and as a measure of local importance for a specific set of predictions.

You need to create an explainer that you can use to retrieve the required global and local feature importance values.

Solution: Create a TabularExplainer.

Does the solution meet the goal?

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Suggested Answer: B

Instead use Permutation Feature Importance Explainer (PFI).

Note 1:

Note 2: Permutation Feature Importance Explainer (PFI): Permutation Feature Importance is a technique used to explain classification and regression models. At a high level, the way it works is by randomly shuffling data one feature at a time for the entire dataset and calculating how much the performance metric of interest changes. The larger the change, the more important that feature is. PFI can explain the overall behavior of any underlying model but does not explain individual predictions.

Contribute your Thoughts:

2 years ago
Answer is NO : The PFIExplainer doesn't support local feature importance explanations.
upvoted 1 times
2 years ago
typo correction : Answer is YES, this is TabularExplainer
upvoted 1 times

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