AI Glossary

Semi-Supervised Learning

A training approach that combines a small amount of labeled data with a large amount of unlabeled data.

Overview

Semi-supervised learning is a machine learning paradigm that sits between supervised learning (all labeled data) and unsupervised learning (no labeled data). It leverages a small set of labeled examples alongside a much larger pool of unlabeled data to improve model performance.

Key Details

This approach is particularly valuable in real-world scenarios where labeling data is expensive or time-consuming. Common techniques include pseudo-labeling, consistency regularization, and self-training, where the model generates labels for unlabeled data and retrains on its own predictions.

Related Concepts

supervised learningunsupervised learningself supervised learning

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Last updated: March 5, 2026