Machine learning is a branch of artificial intelligence where systems learn patterns from data and improve their performance over time, rather than following explicitly hand-written rules for every situation. It's the foundation underlying most of today's practical AI applications.
The Three Main Types
- Supervised learning — trained on labelled data, learning to map inputs to known correct outputs
- Unsupervised learning — finds hidden patterns and structure in unlabelled data on its own
- Reinforcement learning — learns through a system of trial, error, and reward
Everyday Machine Learning in Action
- Email spam filters, learning to distinguish spam from legitimate mail
- Product recommendation engines on eCommerce sites
- Content personalization on social media platforms
- Fraud detection systems used by banks and payment processors
Relevance for Website Owners
Machine learning already sits under the hood of much of the WordPress ecosystem's AI-driven features — content recommendations, spam comment filtering, and personalized product suggestions all typically rely on machine learning models running quietly in the background.
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