Definition
Deep learning
Deep learning is machine learning based on neural networks with many layers. These networks learn representations from data, which is why they are useful for language, images, speech, and recommendation tasks, but also harder to explain and govern than simpler models.
Last updated: 25 June 2026
Why it matters
It helps teams understand why some AI systems are powerful but less transparent and more expensive to test.
Signals to watch
- Neural networks are used
- Large datasets improve results
- Model behavior is difficult to inspect directly