Exit ISQI-CT-AI ISTQB Certified Tester - AI Testing (v 1.0)
Question 4 of 5
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Q4 Single choice

An ML engineer is trying to determine the correctness of a new open-source implementation X of a supervised regression algorithm. R-squared (R? is one of the functional performance metrics used to assess the quality of the model.

Which ONE of the following would be an APPROPRIATE strategy to achieve this goal?

  • A

    Add 10% of the rows randomly, create another model, and compare the R?scores of both models.

  • B

    Train multiple models by changing the order of input features and verify that the R?scores of these models vary significantly.

  • C

    Compare the R?score of the model obtained using two different implementations that use two different programming languages while applying the same algorithm and the same training and test data.

  • D

    Drop 10% of the rows randomly, create another model, and compare the R?scores of both models.

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