# Isolation Forest

> Source: https://sukruyusufkaya.com/en/glossary/isolation-forest
> Updated: 2026-05-13T20:09:49.581Z
> Type: glossary
> Category: makine-ogrenmesi
**TLDR:** An anomaly detection method based on the assumption that anomalous instances are easier to isolate.

<p>Isolation Forest is an efficient and scalable tree-based method for anomaly detection. Its core assumption is that anomalous points can be isolated with fewer splits than normal observations. This makes it especially useful in large-scale and unlabeled environments. However, the data distribution, feature structure, and business-specific definition of anomaly must still be evaluated carefully.</p>