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Concept孤立森林 / iForest

Isolation Forest

An unsupervised ensemble learning algorithm for anomaly detection. It builds multiple isolation trees by randomly selecting features and split thresholds, and measures sample abnormality via path length. It is suited to high-dimensional data, requires no labeled data, and has near-linear computational complexity.

Core Facts

Timeline (last 90 days)

Oct 16

Isolation Forest is an ensemble learning algorithm specifically for unsupervised anomaly detection, proposed by Liu et al. in 2008.

Unverified50%
Oct 16

In AutoHeal AI, metrics such as CPU, memory, and disk I/O are fed into Isolation Forest to output anomaly scores, which are then handed to Gemma to provide a readable explanation of the causes combined with logs.

Unverified50%
Sep 19

Machine learning-based methods (such as Isolation Forest and LSTM autoencoders) can capture complex cross-metric correlation anomalies.

Unverified50%
Aug 30

Isolation Forest is an unsupervised anomaly detection algorithm based on ensemble learning; its core intuition is that anomalous points are more isolated in feature space and can be more easily isolated through random partitioning trees.

Verified65%

All Facts (5)

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