Designing and Implementing a Data Science Solution on Azure — Question 145

You have an Azure Machine Learning workspace.

You plan to use the workspace to set up automated machine learning training for an image classification model.

You need to choose the primary metric to optimize the model training.

Which primary metric should you choose?

Answer options

• A. r2_score
• B. mean_absolute_error
• C. iou
• D. median_absolute_error

Correct answer: C

Explanation

The correct answer is C, iou (Intersection over Union), which is specifically designed for evaluating model performance in image segmentation and classification tasks. The other options, such as r2_score and mean_absolute_error, are more suited for regression tasks and do not effectively measure classification accuracy.