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PROFESSIONAL-MACHINE-LEARNING-ENGINEER · Question #54

Your team trained and tested a DNN regression model with good results. Six months after deployment, the model is performing poorly due to a change in the distribution of the input data. How should you

The correct answer is A. Create alerts to monitor for skew, and retrain the model.. Data values skews: These skews are significant changes in the statistical properties of data, which means that data patterns are changing, and you need to trigger a retraining of the model to capture these changes. https://developers.google.com/machine-learning/guides/rules-of- m

Submitted by mateo_ar· Apr 18, 2026Monitoring, optimizing, and maintaining ML solutions

Question

Your team trained and tested a DNN regression model with good results. Six months after deployment, the model is performing poorly due to a change in the distribution of the input data. How should you address the input differences in production?

Options

  • ACreate alerts to monitor for skew, and retrain the model.
  • BPerform feature selection on the model, and retrain the model with fewer features.
  • CRetrain the model, and select an L2 regularization parameter with a hyperparameter tuning
  • DPerform feature selection on the model, and retrain the model on a monthly basis with fewer

How the community answered

(35 responses)
  • A
    77% (27)
  • B
    3% (1)
  • C
    6% (2)
  • D
    14% (5)

Explanation

Data values skews: These skews are significant changes in the statistical properties of data, which means that data patterns are changing, and you need to trigger a retraining of the model to capture these changes. https://developers.google.com/machine-learning/guides/rules-of- ml/#rule_37_measure_trainingserving_skew

Topics

#Data drift#Model monitoring#Model retraining

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