Case Study

Evaluating the source of data growth for a mobile health application.

Case context: A startup is launching a mobile health tracking application. They notice a massive increase in the volume of user interactions and telemetry data collected daily compared to older desktop-only health applications, and they want to leverage this to improve their models.

Question: Explain, using the concept of digital-device activity and data availability described by Andrew Ng, why this mobile application generates such a vast amount of data and how this feeds back into their deep learning models.

Sample answer: The mobile app generates vast data because users spend significant time on mobile digital devices. Their digital activities on these devices create huge amounts of data. According to Andrew Ng, this high data availability can be fed directly to the startup's learning algorithms, driving progress in their deep learning models.

Key points:

  • User interactions on mobile digital devices generate huge amounts of data.
  • This increases data availability for the startup's models.
  • The data can be fed into learning algorithms to improve them.
  • Increased data availability drives deep learning progress.

Rubric: Students should specify that user activity on mobile digital devices generates huge volumes of data, and that this data availability is fed to learning algorithms to drive deep learning progress.

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Updated 2026-05-27

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Machine Learning

Deep Learning

Supervised Learning

Dive into Deep Learning @ D2L

Data Science

Machine Learning Strategy

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