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Definition: pattern recognition

Identifying an object by its shape or properties. Pattern recognition clearly applies to images; however, it is also used for speech and trends. Virtually any data with repeating values can be identified. The bulk of artificial intelligence (AI) applications deals with pattern recognition. See AI in a nutshell.

Facial Recognition
Before attempting to identify people in a surveillance system, AI-based software uses pattern recognition to isolate faces in a crowd (red squares). Such systems are initially "trained" by feeding them tens of thousands of samples. See deep learning.