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AI Glossary

Classification

Classification is a machine learning task where an AI system places information into predefined categories based on patterns learned from data.

Overview

Classification is a type of machine learning task where an AI system places information into predefined categories.

Rather than predicting a number, the model predicts which category something belongs to.

For example, a model may classify emails as spam or not spam, transactions as fraudulent or legitimate, or images as containing a dog or a cat.

The model learns from examples and then applies that knowledge to new information it has not seen before.

Why It Matters

Many real-world AI systems rely on classification.

It helps organizations automate decisions, organize information, detect risks, and improve efficiency.

Classification is one of the most common applications of machine learning.

Real-World Example

An email provider uses classification to automatically determine whether incoming messages should be placed in the inbox or spam folder.

Related Concepts

  • Regression
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  • Machine Learning