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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 338 discussion

A global bank requires a solution to predict whether customers will leave the bank and choose another bank. The bank is using a dataset to train a model to predict customer loss. The training dataset has 1,000 rows. The training dataset includes 100 instances of customers who left the bank.

A machine learning (ML) specialist is using Amazon SageMaker Data Wrangler to train a churn prediction model by using a SageMaker training job. After training, the ML specialist notices that the model returns only false results. The ML specialist must correct the model so that it returns more accurate predictions.

Which solution will meet these requirements?

  • A. Apply anomaly detection to remove outliers from the training dataset before training.
  • B. Apply Synthetic Minority Oversampling Technique (SMOTE) to the training dataset before training.
  • C. Apply normalization to the features of the training dataset before training.
  • D. Apply undersampling to the training dataset before training.
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Suggested Answer: B 🗳️

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Tkhan1
1 day, 18 hours ago
Selected Answer: B
B is the right choice . D is not an option .While undersampling would discard valuable data from the majority class. Since the dataset is already small (only 1,000 rows), undersampling could lead to a loss of important information
upvoted 1 times
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GS_77
1 week, 6 days ago
Selected Answer: B
SMOTE is most effective.
upvoted 1 times
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