Approaches to Data Labelling CT-AI Practice Questions (Page 3)

Questions 11–15

1. 11application · medium

   A healthcare company is labelling patient records to train a model that predicts disease risk. They plan to use a crowdsourcing platform to label the data. What is the most critical ethical and privacy consideration they must address?

   • AProviding clear labelling guidelines to the crowd workers to ensure consistency.
   • BEnsuring that the patient data is de-identified before it is shared with crowd workers.
   • CPaying crowd workers fairly for their time.
   • DUsing a model-based automated labelling system instead of crowdsourcing to avoid human exposure to the data.
   Reveal Solution Discussion Select an answer first
2. 12foundation · medium

   What is the main benefit of semi-automated labelling?

   • AIt eliminates the need for any human involvement
   • BIt guarantees 100% labelling accuracy
   • CIt reduces human effort while maintaining quality by having humans review or correct automated labels
   • DIt is only useful for image data
   Reveal Solution Discussion Select an answer first
4. 13foundation · medium

   In image processing, which labelling type assigns a class label to every pixel in an image?

   • AObject detection
   • BImage classification
   • CSemantic segmentation
   • DInstance segmentation
   Reveal Solution Discussion Select an answer first
5. 14foundation · medium

   For video data, which labelling task involves identifying and tracking objects across frames?

   • AAudio transcription
   • BText classification
   • CVideo object tracking
   • DSentiment analysis
   Reveal Solution Discussion Select an answer first
6. 15foundation · medium

   How can labelling introduce bias into an ML model?

   • ABy using labels that reflect the annotators' subjective opinions or cultural biases
   • BBy ensuring all annotators follow the same guidelines
   • CBy using automated labelling tools
   • DBy making the dataset larger
   Reveal Solution Discussion Select an answer first