MLS-C01 practice - PrepKeys

Q4 Multiple choice

A company's machine learning (ML) specialist is building a computer vision model to classify 10 different traffic signs. The company has stored 100 images of each class in Amazon S3, and the company has another 10,000 unlabeled images.

Which actions should the ML specialist take to address this problem? (Choose two.)

Select all that apply.

A
Use Amazon SageMaker Ground Truth to label the unlabeled images.
B
Use image preprocessing to transform the images into grayscale images.
C
Use data augmentation to rotate and translate the labeled images.
D
Replace the activation of the last layer with a sigmoid.
E
Use the Amazon SageMaker k-nearest neighbors (k-NN) algorithm to label the unlabeled images.