Vertaile menetelmiä

	Ensemble Isolation Forest	Isolation Forest
Tieteenala	Koneoppiminen	Koneoppiminen
Menetelmäperhe	Machine learning	Machine learning
Syntyvuosi	2008 (base); ensemble variants 2010s–present	2008
Kehittäjä	Liu, F. T., Ting, K. M., Zhou, Z.-H. (base IF); ensemble extensions by multiple researchers	Liu, F.T., Ting, K.M. & Zhou, Z.-H.
Tyyppi	Meta-ensemble anomaly detection	Unsupervised ensemble (random partitioning trees)
Alkuperäislähde	Liu, F. T., Ting, K. M., & Zhou, Z.-H. (2008). Isolation Forest. In Proceedings of the 8th IEEE International Conference on Data Mining (ICDM 2008), pp. 413–422. IEEE.	Liu, F.T., Ting, K.M. & Zhou, Z.-H. (2008). Isolation Forest. IEEE ICDM, 413–422.
Rinnakkaisnimet	EIF ensemble, multi-isolation-forest, isolation forest ensemble, ensemble anomaly detection with isolation trees	Isolation Forest (Aykırı Değer Tespiti), iForest, isolation forest anomaly detection
Liittyvät	5	5
Tiivistelmä	Ensemble Isolation Forest trains multiple Isolation Forest models — each with different random seeds, subsampling ratios, or contamination parameters — and combines their anomaly scores to produce a more stable, robust anomaly ranking. By averaging or aggregating across several independent isolation forests, the method reduces the variance inherent in any single forest and yields more reliable outlier detection on complex or high-dimensional data.	Isolation Forest is an unsupervised machine-learning method for anomaly and outlier detection, introduced by Liu, Ting and Zhou in 2008, that isolates anomalies through random partitioning of the data. It works without any labelled anomaly data and scales to high-dimensional datasets.