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Exam AWS Certified Machine Learning - Specialty All Questions

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Exam AWS Certified Machine Learning - Specialty topic 1 question 347 discussion

A company needs to develop a model that uses a machine learning (ML) model for risk analysis. An ML engineer needs to evaluate the contribution each feature of a training dataset makes to the prediction of the target variable before the ML engineer selects features.

How should the ML engineer predict the contribution of each feature?

  • A. Use the Amazon SageMaker Data Wrangler multicollinearity measurement features and the principal component analysis (PCA) algorithm to calculate the variance of the dataset along multiple directions in the feature space.
  • B. Use an Amazon SageMaker Data Wrangler quick model visualization to find feature importance scores that are between 0.5 and 1.
  • C. Use the Amazon SageMaker Data Wrangler bias report to identify potential biases in the data related to feature engineering.
  • D. Use an Amazon SageMaker Data Wrangler data flow to create and modify a data preparation pipeline. Manually add the feature scores.
Show Suggested Answer Hide Answer
Suggested Answer: B 🗳️

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MultiCloudIronMan
3 weeks, 4 days ago
Selected Answer: A
The question is asking for contribution of each feature not to view only the features that make the highest contribution which .5 and 1 scores shows.
upvoted 1 times
MultiCloudIronMan
1 week, 5 days ago
Changed my mind, #B' is the correct answer, Option D involves using Amazon SageMaker Data Wrangler to create and modify a data preparation pipeline and manually adding the feature scores. While this approach can work, it introduces additional manual steps and complexity compared to Option B.
upvoted 1 times
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SamHan
4 weeks ago
Selected Answer: B
Should be B
upvoted 1 times
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kupo777
1 month, 2 weeks ago
B is the correct answer. The most effective way for ML engineers to assess the contribution that each feature in the training dataset makes to the prediction of the target variable is to use the B. Amazon SageMaker Data Wrangler Quick Model Visualization to find feature importance scores between 0.5 and 1. This method provides a quick visualization of the importance of each feature and can be used to make selection decisions. Other selections A uses Principal Component Analysis (PCA) to calculate variance, but does not directly assess the contribution of a feature. C identifies bias and is not suitable for assessing contribution. D is related to data preparation but is not a method to evaluate the contribution of a feature.
upvoted 2 times
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MultiCloudIronMan
1 month, 3 weeks ago
Selected Answer: B
This approach directly addresses the need to evaluate the contribution of each feature to the prediction of the target variable by providing feature importance scores, which are crucial for understanding and selecting the most impactful features.
upvoted 1 times
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CW0106
2 months ago
Selected Answer: D
Should be D.
upvoted 1 times
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