Short Answer

Why did success on website images fail to ensure success on mobile uploads?

Question: Answer in one to three sentences using the distribution difference described in the cat-app example.

Sample answer: Mobile uploads had a different look from website images, including being lower resolution, blurrier, and poorly lit. Because the training and test data consisted of website images, performance on those sets did not ensure generalization to the mobile distribution of interest.

Key points:

  • Mobile and website images came from different distributions.
  • Website-based evaluation did not establish performance on mobile uploads.

Rubric: The answer must connect the visual differences in mobile images to the mismatch between the evaluated distribution and the target distribution.

0

1

Updated 2026-07-19

Contributors are:

Who are from:

Tags

Machine Learning

Deep Learning

Supervised Learning

Dive into Deep Learning @ D2L

Data Science

Machine Learning Strategy

Machine Learning Yearning @ DeepLearning.AI