// AI Glossary A–Z

Every AI term, defined.

A living dictionary of 109 AI concepts — from foundational terms to cutting-edge techniques. Search or browse alphabetically.

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CONCEPT
F1 Score
The F1 score is the harmonic mean of precision (when the model says positive, how…
CONCEPT
Feature Engineering
Feature engineering is using domain knowledge to transform raw data into features that help ML…
CONCEPT
Federated Learning
Federated learning trains AI models across many devices or organisations without raw data ever leaving…
CONCEPT
Few-Shot Learning
Few-shot learning is the ability of an AI to learn a new task from only…
CONCEPT
Fine-Tuning
Fine-tuning takes a large pretrained model and continues training it on a smaller domain-specific dataset…
CONCEPT
Foundation Model
A foundation model is a large AI model trained on broad data at massive scale…
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